NSK STNDRD BLL SCREWS COMPCT F SERIES Quiet, high-speed operating performance. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
Table of Contents Selection of ball screws Three types of compact F Series are available. Choose optimal types for your application. NSK Standard Ball Screws Compact F PSS Type for general use... 4, 8-31 ccuracy grade: C5 grade of JIS xial play: shaft dia. 6 and 8 mm;.5 mm or less shaft dia. 1 mm or over; Compact F USS Type for high-accuracy and clean environments... 5, 32-37 ccuracy grade: C3 grade of JIS xial play: Compact F FSS type for transfer equipment...6, 38-45 ccuracy grade: Ct7 grade of JIS xial play:.1 mm or less Page Support Unit Square Type...46-47 For general use, for clean use, space saving (low-profile type) Round Type...48-49 For general use, for clean use Square Type... 5-51 For simple support side Lead Screw shaft dia. Combinations of screw shaft diameter and lead 5 8 1 12 15 2 25 3 4 5 6 6 8 1 12 15 2 25 Unit: mm PSS type USS type FSS type 2 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
NSK Standard Ball Screws: Compact F Series Compact F Series ball screws incorporate NSK's ball recirculation system and offer quiet, high-speed performance. In order to respond quickly to a wide range of needs, NSK offers four-week delivery on common sizes. These high-performing ball screws are ready for use in a variety of industries including: semiconductor manufacturing, medical equipment, factory automation and general industrial use. The Compact F Series includes the following types to meet your application requirements: - PSS Type which offers various sizes for general use. - USS Type for high accuracy and clean environment use. - FSS Type for transfer equipment. Features Quick delivery Domestic manufacturing and comprehensive stocking program ensure four-week delivery and reduced shipping costs. Compact ball screw The outside diameter of the ball nut is as much as 3% smaller than those of existing NSK products. Compact size enables all sorts of equipment and devices, such as linear stages, to be smaller. NSK has also designed low profile support units, specific for the Compact F series, enabling a unique space-saving design. Quiet operation The noise level of ball screws has been reduced by 6 db, about half of what is sensed by the ear. Ball screws subsequently produce a quieter and gentler sound. Noise data Shaft dia. 25 mm, lead 5 mm Existing F Series Compact F Series (Microphone was positioned at a distance of 4 mm for all noise measurements.) Comparison of existing F Series and Compact F Series 13 mm more compact (shaft dia. 2, lead 1) High-speed operation They handle speeds up to 5 min-1. This capability dramatically expands the range of service conditions. Note: Please refer to the dimension table for details of permissible rotational speed. rease fitting provided as standard equipment The new ball screws are equipped with a grease fitting (M5.8). Lubrication ports are provided in two locations to facilitate maintenance. The ball screws can be easily connected to an integrated lubrication system. Contact seal Compact, thin plastic seal is available and helps to minimize grease dispersion and maintain a clean work environment. Existing support unit > New low-profile support unit Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 3
Compact F Series: PSS Type for eneral Use pplications Semiconductor manufacturing equipment, LCD manufacturing equipment, material handling equipment, measuring equipment, medical equipment, etc. ccuracy grade and axial play ccuracy grade: C5 grade of JIS Wide variation xial play 1) Shaft dia. 6 and 8 mm:.5 mm or less 2) Shaft dia. 1 mm or over: (Oversize ball preload) Various combinations of shaft diameter, lead and stroke are available to meet a wide range of customer needs. Shaft end support The low-profile support units are compatible for the Compact F Series. Each end of the ball screw shaft is designed to fit support unit, no detailed design after purchase is necessary. Existing support unit Support unit è Low-profile support unit Shaft dia. 6 8 1 12 15 2 25 Combinations of shaft diameter, lead and stroke Lead 5 1 15 2 3 4 5 6 7 8 1 12 16 2 Page Recommended support unit Fixed Simple 8 p* WBK4-1M (square) 8-9 12 p* WBK4-11M (round) - 1 p* WBK6-1M (square) 1-11 15 p* WBK6-11M (round) - 5 12-13 1 WBK8-1B WBK8S-1B 5 1 2 p p p p p 14-15 WBK8-1B WBK8S-1B 3 p p p p p 5 1 WBK12-1B 16-19 2 p p p p p p p p p WBK1-1B WBK12S-1B 3 p p p p p p p p p 5 1 2 p p p p p p p p p 3 p p p p p p p p p 2-25 WBK15-1B WBK15S-1B 4 p p p p p p p p p 6 p p p p p p p p p 5 1 2 25 26-31 WBK2-1 WBK2S-1 3 p p p p p p p p 5 p p p p p p p p *For shaft diameter 6 and 8, length shown is overall length. Stocked: 4-week delivery. p Contact NSK for availability. Reference number PSS COMPCT F PSS TYPE 15 SCREW SHFT DIMETER (MM) 5 LED (MM) N1D NSK CONTROL NUMBER 361 SCREW SHFT LENTH (MM) 4 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
Compact F Series: USS Type for High-ccuracy and Clean Room Use pplications Semiconductor manufacturing equipment, LCD manufacturing equipment, and inspection equipment for clean room environments. ccuracy grade and axial play ccuracy grade: C3 grade of JIS Low-dust emission xial play: (Oversize ball preload) L2 clean grease is used as standard and reduces dust particle generation 9% compared to lithium grease 1/1 of dust particles generated with L2 grease Ideal for clean room environmental use Dust particle amount (.1 μm or larger) [particles/28.3 litle] 1 1 1 1 1 Ball screw Shaft dia. 12 Lead 5 Rotational speed 1 min -1 F Series (eneral grease) Compact F USS type (L2 rease) 1 2 3 4 5 6 7 8 9 Time, h Dust particle amount (.5 μm or larger) [particles/28.3 litle] 1 1 1 1 1 Ball screw Shaft dia. ボールねじ 12 軸径 12 Lead 5 リード 5 Rotational 回転数 speed 1min1 min -1-1 F Series (eneral grease) Compact F USS type (L2 rease) 1 2 3 4 5 6 7 8 9 Time, h Shaft end support Low-profile support units for clean environments are available. Combinations of screw shaft diameter, lead and stroke Shaft dia. Lead Stroke Recommended support unit Page 1 2 4 5 6 Fixed Simple pplication 1 32-33 WBK8-1B WBK8S-1B Low WBK8-1C WBK8S-1C Clean 12 5 34-35 15 36-37 WBK8-1B WBK8S-1B Low WBK8-1C WBK8S-1C Clean WBK12-1B WBK12S-1B Low WBK12-1C WBK12S-1C Clean Reference number USS COMPCT F USS TYPE 15 SCREW SHFT DIMETER (MM) 5 LED (MM) N1D NSK CONTROL NUMBER 361 SCREW SHFT LENTH (MM) Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 5
Compact F Series: FSS Type for Transfer Equipment pplications Transfer equipment used in industrial fields such as automotive, semiconductor, and medical equipment. ccuracy grade and axial play ccuracy grade: Ct7 grade of JIS Easy stroke setting xial play:.1 mm or less Flexible stroke setting with fixed-simple support by means of mounting support unit (simple support side) directly to ball screw thread outside diameter. Since corner cutting is not necessary, customers can cut ball screws, which results in reduced cost and lead time. If necessary, NSK can cut shaft if requested. Contact NSK for more information. Precautions During the cutting process, be careful not to let metal particles or burrs fall inside the ball nut. Customers are also advised to treat the cut surface. When inserting the support unit (simple support side), apply oil or grease on the outside of the shaft and inside the bearing. Shaft end support Fixed side: The low-profile support units compatible for compact F PSS type are available. Simple side: Proprietary support units are available. Easy stroke setting by cutting the shaft end and burring. Design precautions Permissible rotational speed varies when using cut screw shaft. To determine permissible rotational speed, calculate two items below. Use smaller number to determine permissible rotational speed. Critical speed which is the resonance vibration of the shaft. (Refer to the technical description of the catalog "Precision Machine Components".) Maximum rotational speed 5 min-1 Shaft dia. Lead Combinations of shaft diameter, lead and shaft length Overall shaft length Recommended support unit Page 4 5 6 9 1 1 45 Fixed Simple 12 1 38-39 WBK8-1B WBK12SF-1B 15 2 25 1 2 1 2 1 2 25 4-41 WBK12-1B WBK15SF-1B 42-43 WBK15-1B WBK2SF-1B 44-45 WBK2-1 WBK25SF-1 Reference number FSS COMPCT F FSS TYPE 15 SCREW SHFT DIMETER (MM) 1 LED (MM) N1D NSK CONTROL NUMBER 1 SCREW SHFT LENTH (MM) 6 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
Precautions Design (1) If the left shaft end of a ball screw (opposite driven side) is the shape I, and is supported with the fixed-fixed" supporting method, you should be aware that the operating life of support bearings may drop due to thermal expansion of the screw shaft, depending on usage conditions. In this case, you should consider a structure that can absorb thermal expansion of the screw shaft if necessary. Please consult NSK for detailed examination. (2) For general precautions concerning ball screws, please see NSK Catalog No. E3162 "Precision Machine Components." Usage and handling Ball screws are precision products and should be treated as follows: Lubrication (1) Compact F Series ball screws are packed and coated with lubrication grease at the factory, and require no further lubrication under ordinary circumstances. If the surface of the grease becomes contaminated with dirt or metal powder under operation, clean it with white kerosene and replenish with new grease of the same kind through the oil hole (grease fitting) on the ball nut. Check lubrication void mixing different types of grease. (2) Lubricant should be checked after the first 2 to 3 months of operation. If excessively dirty, we recommend you wipe away the old grease and replenish with a generous quantity of grease. fter that, grease should be checked and replenished once a year under ordinary circumstances, but the period may vary depending upon the service environment. Handling (1) Never disassemble the ball screw, otherwise dirt may contaminate the inside of the unit and affect precision or result in equipment failure. (2) Compact F Series ball screws incorporate a new ball re-circulation system. Consequently, only Do not disassemble NSK authorized plants should conduct disassembly and reassembly. If the nut accidentally comes off the screw shaft or is dropped, contact NSK. We can perform inspection and repair if needed. (3) When the ball screw is erected upright, the screw shaft or nut could fall by force of its own weight and result in injury. If dropped, the ball grooves could be dented or re-circulation parts damaged, resulting in loss of function. This would require the ball screw to be inspected by NSK. Beware of dropping If so, be sure to send the ball screw to NSK and we will check it for a fee. Usage (1) Ball screws should be used in a clean environment. The ball screws should be installed with a dust cover to prevent the entry of debris such as dust and metal powder. If foreign matter is allowed to contaminate the ball screw, this could not only cause the ball screw to lose some of its function, but also result in clogging and damaging the re-circulation system parts, or cause the table to fall Dust control or a similar serious accident. 8 C (2) Compact F Series ball screws are designed to be used in a service temperature Max environment of 8 C or lower. Do not allow the service temperature limit to be exceeded. In some cases, using ball screws in temperatures above 8 C might lead to damage of recirculation system parts or seal parts. Contact NSK if 8 C must be exceeded. Caution max. temperature Compact F Series options Consult with NSK for information regarding shaft end machining, reversing ball nut direction and other options. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 7
Compact F Series Screw shaft diameter 6 mm, Lead 8 and 12 mm.4.2.2.1 E 5 14 27.4.9 4 M4.5.6 3 h6 6.5 14 4 2.5 E 6.5.1 4 8.5 E L L t quenching range L 1 18 127 23 15 5 Reference no. Screw shaft dia. Lead Effective turns of balls Basic load ratings (N) Dynamic Static Stroke max. Nut length Screw shaft dimensions d C a C a L L t L 1 PSS68ND15 2 55 715 97.5 16 118.5 8.5 8 PSS68NBD15 4 1 18 1 76 89.5 24 118.5 8.5 6 PSS612ND15 2 55 715 92. 2 117. 1. 12 PSS612NBD15 4 1 18 1 76 8. 32 117. 1. Notes 1. Contact NSK if permissible rotational speed is to be exceeded. 8 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use 2-φ3.4drill thru (equally spaced) Ball screw specification Ball dia./screw shaft root dia. 1.2 / 4.9 PCD 21 Ball circle dia. 6.2 ccuracy grade/axial play C5 /.5 mm or less Factory-packed grease NSK grease PS2 Recommended support unit For drive side (Fixed) WBK4-1M (square) P 46-47 WBK4-11M (round) P 48-49 7.5 7.5 15 Cross-section - Lead accuracy Target value Error Variation Dynamic preload torque Mass Permissible rotational speed Internal spatial volume of nut Standard volume of grease replenishing T e p V u (N cm) (kg) (min -1 ) 1 (cm 3 ) (cm 3 ).6.2.1 2 18.5 or less.6.3.2 5.6.2.1.7.3.2 2. Service temperature range is to 8ºC. 3. Use of NSK support unit is recommended. Refer to pages 46 to 49 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 9
Compact F Series Screw shaft diameter 8 mm, Lead 1 and 15 mm.4.2.2 6.1 E 18 31.4.9 6 M6.75 8.5 18.8 4.5 h6.1 L 4 8 5 3 E.5 E 7 L t quenching range 12 15 L 1 22.5 3 7.5 Reference no. Screw shaft dia. Lead Effective turns of balls Basic load ratings (N) Dynamic Static Stroke max. Nut length Screw shaft dimensions d C a C a L L t L 1 PSS81ND15 2 91 1 26 86.5 18 19.5 1.5 1 PSS81NBD15 4 1 95 3 8 76.5 28 19.5 1.5 8 PSS815ND15 2 91 1 26 8. 22 17. 13. 15 PSS815NBD15 4 1 95 3 8 65. 37 17. 13. Notes 1. Contact NSK if permissible rotational speed is to be exceeded. 1 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use 2-φ3.4drill thru (equally spaced) PCD 25 Ball screw specification Ball dia./screw shaft root dia. 1.588 / 6.6 Ball circle dia. 8.3 ccuracy grade/axial play Factory-packed grease C5 /.5 mm or less NSK grease PS2 Recommended support unit For drive side (Fixed) 9.5 9.5 19 Cross-section - WBK6-1M (square) P 46-47 WBK6-11M (round) P 48-49 Lead accuracy Target value Error Variation Dynamic preload torque Mass Permissible rotational speed Internal spatial volume of nut Standard volume of grease replenishing T e p V u (N cm) (kg) (min -1 ) 1 (cm 3 ) (cm 3 ).9.4.2 2 18.5 or less.11.5.3 5.1.4.2.12.6.3 2. Service temperature range is to 8ºC. 3. Use of NSK support unit is recommended. Refer to pages 46 to 49 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 11
Compact F Series Screw shaft diameter 1 mm, Lead 5 and 1 mm -.6 φ5.7.18.12 -.7 -.2 φ23 g6 2-thin plastic seal (synthetic plastic) C -.2 1 φ11.5.18 M8 1. -.8 -.2 -.1 φ6 φ6 h6.1 E φ1 φ43 -.2 -.8 φ8 F +.1.8 +.1 6.8.5 F 9.1 L (7) 11 6 (8.7) (8.1) (3) L t(quenching range) 5 L a 4 (8) 9 E.5 E 27 37 1 L Reference no. Screw shaft Basic load ratings (N) Stroke Nut Lead Screw shaft dimensions dia. length Dynamic Static Max. Nominal d C a C a L t -L L L t L a L PSS15N1D171 5 83 112 125 171 PSS15N1D221 1 133 162 175 221 PSS15N1D321 5 2 93 4 79 2 233 29 262 275 321 PSS15N1D421 3 333 362 375 421 PSS15N1D521 1 4 433 462 475 521 PSS11N1D221 1 13 162 175 221 PSS11N1D321 2 23 262 275 321 1 1 97 3 1 32 PSS11N1D421 3 33 362 375 421 PSS11N1D521 4 43 462 475 521 Notes 1. Indicates ball screw preload control value. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 12 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use 4-φ4.5 drill thru φ8 c'bore 4.5 depth 3 3 Preload type Ball screw specification Oversize ball (P-preload) PCD 33 Ball dia./screw shaft root dia. 2. / 8.2 Ball circle dia. 1.3 ccuracy grade/axial play C5 / 14 Factory-packed grease NSK grease PS2 21 Recommended support unit rease fitting (oil hole, M5.8 tap) Plug (oil hole, M5.8 tap) 3 3 13 13 26 Cross-section - For drive side (Fixed) For opposite to drive side (Simple) WBK8-1B (square, low) P 46-47 WBK8S-1B (square, low) P 5-51 WBK8-11 (round) P 48-49 - WBK8-11B (round, high-load) P 48-49 - Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple (cm 3 ) (cm 3 ).2.18.3.7 to 3.3.3.2.18.45.7 to 3.3.3.23.18.6.6 to 4.3.3.8.25.2.7.6 to 4.3.4.27.2.85.4 to 4.9.5 5.4.2.18.45.7 to 3.3.3.23.18.6.6 to 4.3.4.25.2.7.6 to 4.3.4.7.27.2.85.4 to 4.9.5 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 13
Compact F Series Screw shaft diameter 12 mm, Lead 5, 1, 2 and 3 mm.18.12 2-thin plastic seal (synthetic plastic) C -.2 1.18.1 E -.6 φ5.7 φ11.5 -.2 -.8 -.2 -.1 φ6 φ8 M8 1. φ12 -.7 -.2 -.8 φ24 g6 φ6 h6 φ44 F.8 +.1 +.1 6.8 6 4 E 9 (8.1).5 F 9.1 6 (8.7) (7) 11 L L t(quenching range) L a (3) L 1 8.5 E 27 37 1 L Reference no. Screw shaft Basic load ratings (N) Stroke Nut Lead Screw shaft dimensions dia. length Dynamic Static Max. Nominal d C a C a L t -L L L t L a L L 1 PSS125N1D171 5 8 11 125 171 PSS125N1D221 1 13 16 175 221 PSS125N1D321 2 23 26 275 321 5 3 2 5 86 3 PSS125N1D421 3 33 36 375 421 PSS125N1D521 4 43 46 475 521 PSS125N1D621 5 53 56 575 621 PSS121N1D221 1 117 16 175 221 PSS121N1D321 2 217 26 275 321 PSS121N1D421 1 3 2 5 86 3 317 43 36 375 421 PSS121N1D521 4 417 46 475 521 PSS121N1D621 12 5 517 56 575 621 PSS122N1D271 1 158 28 225 271 PSS122N1D371 2 258 38 325 371 PSS122N1D471 2 2 15 3 61 3 358 5 48 425 471 PSS122N1D571 4 458 58 525 571 PSS122N1D671 5 558 68 625 671 PSS123N1D271 1 133 23 225 271 PSS123N1D371 2 233 33 325 371 PSS123N1D471 3 2 15 3 61 3 333 7 43 425 471 PSS123N1D571 4 433 53 525 571 PSS123N1D671 5 533 63 625 671 7 7 9 14 Notes 1. Indicates ball screw preload control value. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 14 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use 3 3 4-φ4.5 drill thru φ8 c'bore 4.5 depth Preload type Ball screw specification Oversize ball (P-preload) PCD 34 Ball dia./screw shaft root dia. 2. / 1.2 Ball circle dia. 12.3 ccuracy grade/axial play C5 / 14.5 21.5 Factory-packed grease Recommended support unit NSK grease PS2 rease fitting (oil hole, M5.8 tap) 3 Plug (oil hole, M5.8 tap) 3 13.5 13.5 27 Cross-section - For drive side (Fixed) For opposite to drive side (Simple) WBK8-1B (square, low) P 46-47 WBK8S-1B (square, low) P 5-51 WBK8-11 (round) P 48-49 - WBK8-11B (round, high-load) P 48-49 - Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple (cm 3 ) (cm 3 ).2.18.3.7 to 3.3.3.2.18.45.7 to 3.3.3.23.18.6.6 to 4.3.4.25.2.7.6 to 4.3.5 5 1..5.27.2.85.6 to 4.3.6.3.23.85.4 to 4.9.7.2.18.45.7 to 3.3.4.23.18.6.6 to 4.3.5.25.2.7.6 to 4.3.5 5 1..5.27.2.85.6 to 4.3.6.3.23.85.4 to 4.9.7.23.18.45 1.4 to 4.5.4.23.18.6.9 to 4.9.5 5.27.2.7.9 to 4.9.6 1.2.6.3.23.85.6 to 5.9.7.3.23.11.6 to 5.9.8 4 2.23.18.45 1.4 to 4.5.5.23.18.6.9 to 4.9.6 5.27.2.7.9 to 4.9.7 1.5.8.3.23.85.6 to 5.9.7.3.23.11.6 to 5.9.8 4 3 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 15
Screw shaft diameter 15 mm, Lead 5 and 1 mm Shape II -.4 -.12 φ51 Compact F Series φ1 -.9.17 φ9.6 12 +.1 9.15 +.14 1.15 L.12 2-thin plastic seal (synthetic plastic) C 12 -.25.17.11 E F M12 1. -.9 φ1 h6 Shape I.17 M1 1. 1 -.4 -.12 φ1 F φ9.6 -.9 +.14 1.15 +.1 9.15 φ14 6 φ15 -.7 -.2 φ28 g6.1 L 6 (8.7) (7) 11 (8.1) (3) 8 φ15 -.3 -.11 φ12 E 5 1.5 E.5 F L t(quenching range) 15 3 15 3 L a 45 L Reference no. Screw shaft Basic load ratings (N) Stroke Nut Lead Screw shaft dimensions dia. length Dynamic Static Max. Nominal d C a C a L t -L L L t L a L PSS155N1D211 5 19 139 154 211 PSS155N1D261 1 159 189 24 261 PSS155N1D361 2 259 289 34 361 PSS155N1D461 5 3 359 3 389 44 461 PSS155N1D561 4 459 489 54 561 PSS155N1D661 5 559 589 64 661 PSS155N1D761 6 659 689 74 761 PSS151N1D261 1 146 189 24 261 15 5 46 1 2 PSS151N1D361 2 246 289 34 361 PSS151N1D461 3 346 389 44 461 PSS151N1D561 4 446 489 54 561 PSS151N1D661 1 5 546 43 589 64 661 PSS151N1D761 6 646 689 74 761 PSS151N1D879 7 746 789 84 879 PSS151N1D979 8 846 889 94 979 PSS151N1D1179 1 1 46 1 89 1 14 1 179 Notes 1. Indicates ball screw preload control value. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 16 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use 3 3 4-φ5.5 drill thru φ9.5 c'bore 5.5 depth Ball screw specification Preload type Oversize ball (P-preload) Ball dia./screw shaft root dia. 2.778 / 12.6 PCD 39 Ball circle dia. 15.5 ccuracy grade/axial play C5 / Factory-packed grease NSK grease LR3 25 18 Recommended support unit rease fitting (oil hole, M5.8 tap) 3 15.5 31 3 15.5 For drive side (Fixed) (Fixed) For opposite to drive side (Simple) WBK12-1B (square, low) P 46-47 WBK1-1B (square, low) P 46-47 WBK12S-1B (square, low) P 5-51 WBK12-11 (round) P 48-49 WBK1-11 (round) P 48-49 - Plug (oil hole, M5.8 tap) Cross-section - Left shaft end (opposite driven side) Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple Fixed-Fixed (cm 3 ) (cm 3 ).2.18.35.2 to 6.9.5.2.18.35.2 to 6.9.5 II.23.18.45.2 to 6.9.6.25.2.5.4 to 9.8.8 5 _.27.2.6.4 to 9.8.9.3.23.75.4 to 9.8 1..35.25.75.4 to 11.8 1.1 3 6.2.18.35.6 to 7.4.6.23.18.45.6 to 7.4.7 2. 1. II.25.2.5.4 to 9.8.8.27.2.6.4 to 9.8 1. 5 _.3.23.75.4 to 9.8 1.1.35.25.75.4 to 11.8 1.2 3 6.35.25.95.4 to 11.8 1.4 2 7 3 4 I.4.27.95.4 to 11.8 1.5 2 2 3 4.46.3.12.4 to 11.8 1.7 1 4 2 3 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 17
Compact F Series Screw shaft diameter 15 mm, Lead 2 and 3 mm Shape II -.4 -.12 φ1 -.9.17 φ9.6 12 +.1 9.15 +.14 1.15 L.12 2-thin plastic seal (synthetic plastic) C 12 -.25.17.11 E F M12 1. -.9 φ1 h6 Shape I.17 M1 1. 1 -.4 -.12 φ1 F φ9.6 -.9 +.14 1.15 +.1 9.15 φ14 6 φ15 -.9 -.25 φ32 g6 L.1 6 (8.7) (7) 11 (3) (8.1) φ55 8 φ15 -.3 -.11 φ12 E 5 1.5 E.5 F L t(quenching range) L 1 3 15 3 L a 45 L Reference no. Screw shaft Basic load ratings (N) Stroke Nut Lead Screw shaft dimensions dia. length Dynamic Static Max. Nominal d C a C a L t -L L L t L a L L 1 PSS152N1D261 1 135 186 24 261 PSS152N1D361 2 235 286 34 361 PSS152N1D461 3 335 386 44 461 PSS152N1D561 4 435 486 54 561 PSS152N1D661 2 5 535 51 586 64 661 PSS152N1D761 6 635 686 74 761 PSS152N1D879 7 735 786 84 879 PSS152N1D979 8 835 886 94 979 PSS152N1D1179 1 1 35 1 86 1 14 1 179 15 5 7 8 73 PSS153N1D311 1 159 23 254 311 PSS153N1D411 2 259 33 354 411 PSS153N1D511 3 359 43 454 511 PSS153N1D611 4 459 53 554 611 PSS153N1D711 3 5 559 71 63 654 711 PSS153N1D811 6 659 73 754 811 PSS153N1D929 7 759 83 854 929 PSS153N1D129 8 859 93 954 1 29 PSS153N1D1229 1 1 59 1 13 1 154 1 229 18 24 Notes 18 1. Indicates ball screw preload control value. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use 3 3 4-φ5.5 drill thru φ9.5 c'bore 5.5 depth Ball screw specification Preload type Oversize ball (P-preload) Ball dia./screw shaft root dia. 3.175 / 12.2 PCD 43 Ball circle dia. 15.5 ccuracy grade/axial play C5 / Factory-packed grease NSK grease LR3 2 27 Recommended support unit rease fitting (oil hole, M5.8 tap) 3 16.5 33 3 16.5 For drive side (Fixed) (Fixed) For opposite to drive side (Simple) WBK12-1B (square, low) P 46-47 WBK1-1B (square, low) P 46-47 WBK12S-1B (square, low) P 5-51 WBK12-11 (round) P 48-49 WBK1-11 (round) P 48-49 - Plug (oil hole, M5.8 tap) Cross-section - Left shaft end (opposite driven side) Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple Fixed-Fixed (cm 3 ) (cm 3 ).2.18.35.8 to 8.8.7.23.18.45.8 to 8.8.8 II.25.2.5.8 to 1.8.9.27.2.6.8 to 1.8 1.1 5 _.3.23.75.8 to 1.8 1.2 2.8 1.4.35.25.75.8 to 13.8 1.3 3 7.35.25.95.8 to 13.8 1.5 2 9 4 2 I.4.27.95.8 to 13.8 1.6 2 2 3 3.46.3.12.8 to 13.8 1.9 1 5 2 2.23.18.35 1.2 to 9.3.8 II.25.2.5.8 to 1.8 1..27.2.6.8 to 1.8 1.1.3.23.6.8 to 1.8 1.2 5 _.3.23.75.8 to 13.8 1.4 4 5 3.4 1.7.35.25.95.8 to 13.8 1.5 3 3.4.27.95.8 to 13.8 1.6 2 6 3 8 I.4.27.12.8 to 13.8 1.8 2 3.46.3.12.8 to 13.8 2. 1 4 2 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 19
Compact F Series Screw shaft diameter 2 mm, Lead 5 and 1 mm Shape II.17 -.4 -.12 φ15 -.11 φ14.3 13 L +.1 1.15 1.15 +.14.15 2-thin plastic seal (synthetic plastic) C -.25 17.17.12 E Shape I M15 1. 15 F.17 -.4 -.12 φ15 F -.11 φ14.3 1.15 +.14 1.15 +.1.5 F 4 φ19.5 7 φ2 -.9 -.25 φ36 g6.11 L 6(8.7) (7) 13 L t(quenching range) L a L (8.1) (3) φ62 φ19.5 1 7 22 -.4 -.12 φ15 E.5 E 4 6 15 M15 1. 2 -.11 φ12 h6 Reference no. Screw shaft Basic load ratings (N) Stroke Nut Lead Screw shaft dimensions dia. length Dynamic Static Max. Nominal d C a C a L t -L L L t L a L PSS25N1D323 15 197 228 25 323 PSS25N1D373 2 247 278 3 373 PSS25N1D473 3 347 378 4 473 PSS25N1D573 4 447 478 5 573 5 31 PSS25N1D673 5 547 578 6 673 PSS25N1D773 6 647 678 7 773 PSS25N1D873 7 747 778 8 873 PSS25N1D1 8 847 878 9 1 PSS21N1D387 2 8 79 18 5 2 247 292 314 387 PSS21N1D487 3 347 392 414 487 PSS21N1D587 4 447 492 514 587 PSS21N1D687 5 547 592 614 687 PSS21N1D787 1 6 647 45 692 714 787 PSS21N1D887 7 747 792 814 887 PSS21N1D114 8 847 892 914 1 14 PSS21N1D1214 1 1 47 1 92 1 114 1 214 PSS21N1D1414 1 2 1 247 1 292 1 314 1 414 Notes 1. Indicates ball screw preload control value. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 2 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use 3 3 4-φ6.6 drill thru φ11 c'bore 6.5 depth Preload type Ball screw specification Oversize ball (P-preload) Ball dia./screw shaft root dia. 3.175 / 17.2 PCD 49 Ball circle dia. 2.5 ccuracy grade/axial play C5 / Factory-packed grease NSK grease LR3 rease fitting (oil hole, M5.8 tap) 3 19 Plug (oil hole, M5.8 tap) 38 3 19 Cross-section - 23.5 3.5 Recommended support unit For drive side (Fixed) (Fixed) For opposite to drive side (Simple) WBK15-1B (square, low) P 46-47 WBK15-1B (square, low) P 46-47 WBK15S-1B (square, low) P 5 WBK15-11 (round) P 48-49 WBK15-11 (round) P 48-49 - Left shaft end (opposite driven side) Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple Fixed-Fixed (cm 3 ) (cm 3 ).23.18.45.6 to 7.4 1..23.18.45.6 to 7.4 1.1.25.2.5.6 to 7.4 1.3 5 II.27.2.6.4 to 9.8 1.5 _.3.23.75.4 to 9.8 1.7.35.25.75.4 to 9.8 1.9.35.25.95.4 to 9.8 2.2 4 I.4.27.95.4 to 11.8 2.4 3 2 4 7.23.18.45 1.2 to 9.3 1.2.25.2.5 1.2 to 9.3 1.4 II.27.2.6.8 to 1.8 1.7 5.3.23.75.8 to 1.8 1.9 _.35.25.75.8 to 1.8 2.1.35.25.95.8 to 1.8 2.4 4.4.27.12.8 to 13.8 2.6 3 1 4 6 I.46.3.12.8 to 13.8 3.1 2 1 3 1.54.35.16.8 to 13.8 3.6 1 5 2 2 3.4 1.7 3.2 1.6 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 21
Compact F Series Screw shaft diameter 2 mm, Lead 2 and 3 mm Shape II.17 -.4 -.12 φ15 -.11 φ14.3 13 L 1.15 1.15 +.1 +.14.15 2-thin plastic seal (synthetic plastic) C -.25 17.17.12 E M15 1. Shape I 15 F.17 -.4 -.12 φ15 F -.11 φ14.3 1.15 +.14 1.15 +.1.5 F 4 φ19.5 7 φ2 -.9 -.25 φ36 g6.11 L 6(8.7) (7) 13 L t(quenching range) L a L (8.1) (3) φ62 φ19.5 1 7 L 1 -.4 -.12 φ15 E.5 E 4 6 15 M15 1. 2 -.11 φ12 h6 Reference no. Screw shaft Basic load ratings (N) Stroke Nut Lead Screw shaft dimensions dia. length Dynamic Static Max. Nominal d C a C a L t -L L L t L a L L 1 PSS22N1D58 3 359 413 435 58 PSS22N1D68 4 459 513 535 68 PSS22N1D78 5 559 613 635 78 PSS22N1D88 6 659 713 735 88 PSS22N1D98 2 7 759 54 813 835 98 PSS22N1D135 8 859 913 935 1 35 PSS22N1D1235 1 1 59 1 113 1 135 1 235 PSS22N1D1435 1 2 1 259 1 313 1 335 1 435 PSS22N1D1835 1 6 1 659 1 713 1 735 1 835 2 5 9 11 7 PSS23N1D48 2 234 38 335 48 PSS23N1D58 3 334 48 435 58 PSS23N1D68 4 434 58 535 68 PSS23N1D78 5 534 68 635 78 PSS23N1D88 3 6 634 74 78 735 88 PSS23N1D98 7 734 88 835 98 PSS23N1D135 8 834 98 935 1 35 PSS23N1D1235 1 1 34 1 18 1 135 1 235 PSS23N1D1435 1 2 1 234 1 38 1 335 1 435 22 27 Notes 1. Indicates ball screw preload control value. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 22 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use Ball screw specification 3 3 4-φ6.6 drill thru φ11 c'bore 6.5 depth Preload type Oversize ball (P-preload) Ball dia./screw shaft root dia. 3.175 / 17.2 PCD 49 Ball circle dia. 2.5 ccuracy grade/axial play C5 / Factory-packed grease NSK grease LR3 23.5 3.5 Recommended support unit rease fitting (oil hole, M5.8 tap) 19 Plug (oil hole, M5.8 tap) 3 38 3 19 For drive side (Fixed) (Fixed) For opposite to drive side (Simple) WBK15-1B (square, low) P 46-47 WBK15-1B (square, low) P 46-47 WBK15S-1B (square, low) P 5-51 WBK15-11 (round) P 48-49 WBK15-11 (round) P 48-49 - Cross-section - Left shaft end (opposite driven side) Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple Fixed-Fixed (cm 3 ) (cm 3 ).27.2.6 1.4 to 11.8 1.6 II.3.23.6 1.4 to 11.8 1.8.3.23.75 1.4 to 11.8 2. 5 _.35.25.95 1.4 to 11.8 2.3.4.27.95.8 to 13.8 2.5 3 7 3.2 1.6.4.27.12.8 to 13.8 2.8 3 4 5 I.46.3.12.8 to 13.8 3.3 2 3.54.35.16.8 to 13.8 3.8 1 4 2 1.65.4.2.8 to 13.8 4.7 8 1 2.23.18.5 1.6 to 9.8 1.4.27.2.6 1.4 to 11.8 1.7 II.3.23.6 1.4 to 11.8 1.9.3.23.75 1.4 to 11.8 2.1 5 _.35.25.95 1.4 to 11.8 2.4 4.6 2.3.4.27.95.8 to 13.8 2.6 3 9.4.27.12.8 to 13.8 2.9 3 1 4 6 I.46.3.12.8 to 13.8 3.4 2 1 3.54.35.16.8 to 13.8 3.9 1 5 2 2 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 23
Compact F Series Screw shaft diameter 2 mm, Lead 4 and 6 mm Shape II.17 -.4 -.12 φ15 -.11 φ14.3 13 L +.1 1.15 1.15 +.14.15 2-thin plastic seal (synthetic plastic) C -.25 17.17.12 E M15 1. Shape I 15 F.17 -.4 -.12 φ15 F -.11 φ14.3 1.15 +.14 1.15 +.1.5 F 4 φ19.5 7 φ2 -.9 -.25 φ36 g6.11 L 6(8.7) (7) 13 L t(quenching range) L a L (8.1) (3) φ62 φ19.5 1 7 L 1 -.4 -.12 φ15 E.5 E 4 6 15 M15 1. 2 -.11 φ12 h6 Reference no. Screw shaft Basic load ratings (N) Stroke Nut Lead Screw shaft dimensions dia. length Dynamic Static Max. Nominal d C a C a L t -L L L t L a L L 1 PSS24N1D658 4 461 553 585 658 PSS24N1D758 5 561 653 685 758 PSS24N1D858 6 661 753 785 858 PSS24N1D958 7 761 853 885 958 PSS24N1D185 4 8 861 92 953 985 1 85 PSS24N1D1285 1 1 61 1 153 1 185 1 285 PSS24N1D1485 1 2 1 261 1 353 1 385 1 485 PSS24N1D1885 1 6 1 661 1 753 1 785 1 885 PSS24N1D2285 2 2 61 2 153 2 185 2 285 2 5 9 11 7 PSS26N1D78 4 464 593 635 78 PSS26N1D88 5 564 693 735 88 PSS26N1D98 6 664 793 835 98 PSS26N1D18 7 764 893 935 1 8 PSS26N1D1135 6 8 864 129 993 1 35 1 135 PSS26N1D1335 1 1 64 1 193 1 235 1 335 PSS26N1D1535 1 2 1 264 1 393 1 435 1 535 PSS26N1D1935 1 6 1 664 1 793 1 835 1 935 PSS26N1D2335 2 2 64 2 193 2 235 2 335 32 42 Notes 1. Indicates ball screw preload control value. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 24 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use 3 3 4-φ6.6 drill thru φ11 c'bore 6.5 depth Ball screw specification Preload type Oversize ball (P-preload) Ball dia./screw shaft root dia. 3.175 / 17.2 PCD 49 Ball circle dia. 2.5 ccuracy grade/axial play C5 / Factory-packed grease NSK grease LR3 rease fitting (oil hole, M5.8 tap) 3 19 Plug (oil hole, M5.8 tap) 38 3 19 Cross-section - 23.5 3.5 Recommended support unit For drive side (Fixed) (Fixed) For opposite to drive side (Simple) WBK15-1B (square, low) P 46-47 WBK15-1B (square, low) P 46-47 WBK15S-1B (square, low) P 5 WBK15-11 (round) P 48-49 WBK15-11 (round) P 48-49 - Left shaft end (opposite driven side) Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple Fixed-Fixed (cm 3 ) (cm 3 ).3.23.75 2.2 to 12.8 2.1 II.35.25.75 2.2 to 12.8 2.4.35.25.95 2.2 to 12.8 2.6 5 _.4.27.95 1.8 to 14.8 2.8 3 5.4.27.12 1.8 to 14.8 3.1 2 8 4 2 5.3 2.7.46.3.16 1.8 to 14.8 3.6 1 9 2 8 I.54.35.16 1.8 to 14.8 4.1 1 4 2.65.4.2 1.8 to 14.8 5.1 8 1 2 II.77.46.24 1.8 to 14.8 6. 5 8.3.23.75 2.7 to 13.8 2.4 5.35.25.95 2.7 to 13.8 2.6 _.35.25.95 2.7 to 13.8 2.9 4 2.4.27.12 1.8 to 14.8 3.1 3 3.4.27.12 1.8 to 14.8 3.4 2 6 3 9 7. 3.5.46.3.16 1.8 to 14.8 3.9 1 8 2 7 I.54.35.16 1.8 to 14.8 4.4 1 3 1 9.65.4.2 1.8 to 14.8 5.4 8 1 1.77.46.24 1.8 to 14.8 6.3 5 7 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 25
Compact F Series Screw shaft diameter 25 mm, Lead 5 and 1 mm 19 +.1.16.15 15.35 -.21 φ19 L 1.35 +.14 C 22 -.35.22.12 E Shape II Shape I M2 1. -.5 -.14 φ2 16 F.16 -.5 -.14 φ2 F -.21 φ19 1.35 53 +.14.5 F 15.35 +.1 φ25 -.9 -.25 φ4 g6 2-thin plastic seal (synthetic plastic).11 L 6 (7) 12 L t(quenching range) L a (8.7) (3) (8.1) φ62 φ25 12 1 27 -.5 -.14 φ2 E.5 E 53 8 16 M2 1. 27 -.11 φ15 h6 L Reference no. Screw shaft Basic load ratings (N) Stroke Nut Lead Screw shaft dimensions dia. length Dynamic Static Max. Nominal d C a C a L t -L L L t L a L PSS255N1D349 15 191 223 25 349 PSS255N1D399 2 241 273 3 399 PSS255N1D499 3 341 373 4 499 PSS255N1D599 4 441 473 5 599 5 9 76 23 6 32 PSS255N1D699 5 541 573 6 699 PSS255N1D899 7 741 773 8 899 PSS255N1D999 8 841 873 9 999 PSS255N1D1233 1 1 41 1 73 1 1 1 233 25 PSS251N1D549 3 367 423 45 549 PSS251N1D649 4 467 523 55 649 PSS251N1D749 5 567 623 65 749 PSS251N1D849 6 667 723 75 849 1 12 8 32 3 56 PSS251N1D949 7 767 823 85 949 PSS251N1D149 8 867 923 95 1 49 PSS251N1D1283 1 1 67 1 123 1 15 1 283 PSS251N1D1883 1 6 1 667 1 723 1 75 1 883 Notes 1. Indicates ball screw preload control value. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 26 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use 45 45 6-φ6.6 drill thru Ball screw specification Preload type Oversize ball (P-preload) Ball dia./screw shaft root dia. 3.175 / 22.2 3.5 rease fitting (oil hole, M5.8 tap) Plug (oil hole, M5.8 tap) 45 22.5 24 24 48 45 PCD 51 PCD 47 Ball circle dia. 25.5 ccuracy grade/axial play C5 / Factory-packed grease Recommended support unit For drive side (Fixed) (Fixed) For opposite to drive side NSK grease LR3 (Simple) Cross-section - WBK2-1 (square) P 46-47 WBK2-1 (square) P 46-47 WBK2S-1 (square) P 5 WBK2-11 (round) P 48-49 WBK2-11 (round) P 48-49 - Left shaft end (opposite driven side) Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple Fixed-Fixed (cm 3 ) (cm 3 ).23.18.35 1.2 to 9.3 1.5.23.18.35 1.2 to 9.3 1.6.25.2.4 1.2 to 9.3 2. 5 II.27.2.45 1.2 to 9.3 2.3 _.3.23.55.8 to 1.8 2.7.35.25.65.8 to 1.8 3.4.4.27.65.8 to 1.8 3.7 4 1 I.46.3.8.8 to 13.8 4.5 2 7 4.27.2.45 3.1 to 11.8 2.4.3.23.55 2.2 to 12.8 2.7 II.3.23.55 2.2 to 12.8 3.1 5.35.25.65 2.2 to 12.8 3.5 -.4.27.65 2.2 to 12.8 3.8.4.27.8 2.2 to 12.8 4.2 3 6 I.46.3.1 1.8 to 14.8 5. 2 5 3 7.65.4.13 1.8 to 14.8 7.2 1 1 6 4.4 2.2 4.7 2.4 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 27
Compact F Series Screw shaft diameter 25 mm, Lead 2 and 25 mm 19 +.1.16.15 15.35 -.21 φ19 L 1.35 +.14 C 22 -.35.22.12 E Shape II Shape I M2 1. -.5 -.14 φ2 16 F.16 -.5 -.14 φ2 F -.21 φ19 1.35 53 +.14.5 F 15.35 +.1 φ25 -.9 -.25 φ4 g6 2-thin plastic seal (synthetic plastic).11 L 6 (7) 12 L t(quenching range) L a (8.7) (3) (8.1) φ62 φ25 12 1 L 1 -.5 -.14 φ2 E.5 E 53 8 16 M2 1. 27 -.11 φ15 h6 L Reference no. Screw shaft Basic load ratings (N) Stroke Nut Lead Screw shaft dimensions dia. length Dynamic Static Max. Nominal d C a C a L t -L L L t L a L L 1 PSS252N1D729 5 55 64 63 729 PSS252N1D829 6 65 74 73 829 PSS252N1D929 7 75 84 83 929 PSS252N1D129 8 85 94 93 1 29 2 54 PSS252N1D1263 1 1 5 1 14 1 13 1 263 PSS252N1D1463 1 2 1 25 1 34 1 33 1 463 PSS252N1D1863 1 6 1 65 1 74 1 73 1 863 PSS252N1D2263 2 2 5 2 14 2 13 2 263 25 6 56 14 6 PSS2525N1D779 5 587 65 68 779 PSS2525N1D879 6 687 75 78 879 PSS2525N1D979 7 787 85 88 979 PSS2525N1D179 8 887 95 98 1 79 25 63 PSS2525N1D1313 1 1 87 1 15 1 18 1 313 PSS2525N1D1513 1 2 1 287 1 35 1 38 1 513 PSS2525N1D1913 1 6 1 687 1 75 1 78 1 913 PSS2525N1D2313 2 2 87 2 15 2 18 2 313 26 3 Notes 1. Indicates ball screw preload control value. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 28 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use Ball screw specification 45 45 6-φ6.6 drill thru Preload type Oversize ball (P-preload) Ball dia./screw shaft root dia. 3.175 / 22.2 Ball circle dia. 25.5 3.5 PCD 51 PCD 47 ccuracy grade/axial play C5 / Factory-packed grease NSK grease LR3 rease fitting (oil hole, M5.8 tap) Plug (oil hole, M5.8 tap) 45 22.5 24 24 48 45 Cross-section - Recommended support unit For drive side (Fixed) (Fixed) For opposite to drive side (Simple) WBK2-1 (square) P 46-47 WBK2-1 (square) P 46-47 WBK2S-1 (square) P 5 WBK2-11 (round) P 48-49 WBK2-11 (round) P 48-49 - Left shaft end (opposite driven side) Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple Fixed-Fixed (cm 3 ) (cm 3 ) II I II I.3.23.55 2.2 to 12.8 3.1 5.35.25.65 2.2 to 12.8 3.4 _.4.27.65 2.2 to 12.8 3.8 4 8.4.27.8 2.2 to 12.8 4.2 3 8.46.3.1 1.8 to 14.8 5. 2 6 3 8.54.35.1 1.8 to 14.8 5.8 1 8 2 7.65.4.13 1.8 to 14.8 7.3 1 1 1 6.77.46.17 1.8 to 14.8 8.8 7 1.35.25.55 2.7 to 13.8 3.3 5.35.25.65 2.7 to 13.8 3.7 _.4.27.65 2.7 to 13.8 4.1 4 3.4.27.8 2.7 to 13.8 4.4 3 4.46.3.1 1.8 to 14.8 5.3 2 3 3 5.54.35.1 1.8 to 14.8 6. 1 7 2 6.65.4.13 1.8 to 14.8 7.5 1 1 5.77.46.17 1.8 to 14.8 9.1 7 1 3.9 2. 4.3 2.2 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 29
Compact F Series Screw shaft diameter 25 mm, Lead 3 and 5 mm 19 +.1.16.15 15.35 -.21 φ19 L 1.35 +.14 C 22 -.35.22.12 E Shape II Shape I M2 1. -.5 -.14 φ2 16 F.16 -.5 -.14 φ2 F -.21 φ19 1.35 53 +.14.5 F 15.35 +.1 φ25 -.9 -.25 φ4 g6 2-thin plastic seal (synthetic plastic).11 L 6 (7) 12 L t(quenching range) L a (8.7) (3) (8.1) φ62 φ25 12 1 L 1 -.5 -.14 φ2 E.5 E 53 8 16 M2 1. 27 -.11 φ15 h6 L Reference no. Screw shaft Basic load ratings (N) Stroke Nut Lead Screw shaft dimensions dia. length Dynamic Static Max. Nominal d C a C a L t -L L L t L a L L 1 PSS253N1D779 5 576 65 68 779 PSS253N1D879 6 676 75 78 879 PSS253N1D979 7 776 85 88 979 PSS253N1D179 8 876 95 98 1 79 3 74 PSS253N1D1313 1 1 76 1 15 1 18 1 313 PSS253N1D1513 1 2 1 276 1 35 1 38 1 513 PSS253N1D1913 1 6 1 676 1 75 1 78 1 913 PSS253N1D2313 2 2 76 2 15 2 18 2 313 25 6 56 14 6 PSS255N1D829 5 576 69 73 829 PSS255N1D929 6 676 79 83 929 PSS255N1D129 7 776 89 93 1 29 PSS255N1D1129 8 876 99 1 3 1 129 5 114 PSS255N1D1363 1 1 76 1 19 1 23 1 363 PSS255N1D1563 1 2 1 276 1 39 1 43 1 563 PSS255N1D1963 1 6 1 676 1 79 1 83 1 963 PSS255N1D2363 2 2 76 2 19 2 23 2 363 3 4 Notes 1. Indicates ball screw preload control value. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 3 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
PSS Type for eneral Use 45 45 6-φ6.6 drill thru Preload type Ball screw specification Oversize ball (P-preload) Ball dia./screw shaft root dia. 3.175 / 22.2 3.5 PCD 51 PCD 47 Ball circle dia. 25.5 ccuracy grade/axial play C5 / rease fitting (oil hole, M5.8 tap) Plug (oil hole, M5.8 tap) 45 22.5 24 24 48 45 Cross-section - Factory-packed grease Recommended support unit For drive side (Fixed) (Fixed) For opposite to drive side NSK grease LR3 (Simple) WBK2-1 (square) P 46-47 WBK2-1 (square) P 46-47 WBK2S-1 (square) P 5 WBK2-11 (round) P 48-49 WBK2-11 (round) P 48-49 - Left shaft end (opposite driven side) Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple Fixed-Fixed (cm 3 ) (cm 3 ) II.35.25.55 2.7 to 13.8 3.4 5.35.25.65 2.7 to 13.8 3.7.4.27.65 2.7 to 13.8 4.1 4 3 _.4.27.8 2.7 to 13.8 4.5 3 4.46.3.1 1.8 to 14.8 5.3 2 3 3 6 5.5 2.8 I.54.35.1 1.8 to 14.8 6.1 1 7 2 6.65.4.13 1.8 to 14.8 7.6 1 1 5.77.46.17 1.8 to 14.8 9.1 7 1.35.25.65 5.4 to 17.6 3.8 5 II.35.25.65 5.4 to 17.6 4.1 4 8.4.27.8 5.4 to 17.6 4.5 3 8 _.4.27.8 5.4 to 17.6 4.9 3 1.46.3.1 4.1 to 19.6 5.8 2 2 3 4 7.7 3.9 I.54.35.1 4.1 to 19.6 6.5 1 6 2 5.65.4.13 4.1 to 19.6 8. 9 1 5.77.46.17 4.1 to 19.6 9.6 6 1 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 31
Compact F Series Screw shaft diameter 1 mm, Lead 5 mm -.6 φ5.7.14.1 -.7 -.2 φ23g6 2-thin plastic seal (synthetic plastic) C 1 -.2 φ11.5.14 M8 1. -.2 -.1 φ6 -.8 φ6 h6.8 E φ1 φ43 -.2 -.8 φ8 F.8 6.8 +.1 +.1.3 F 9.8 6 (8.7) (8.1) (3) (7) 11 29 L t(quenching range) 5 L a 4 (8) 9 E.3 E 27 37 1 L Reference no. Screw shaft Basic load ratings (N) Stroke Lead dia. Screw shaft dimensions Dynamic Static Max. d C a C a Nominal L t -L L t L a L USS15N1D221 1 133 162 175 221 USS15N1D321 1 5 2 93 4 79 2 233 262 275 321 USS15N1D521 4 433 462 475 521 Notes 1. Indicates ball screw preload control value. pproximately.5 N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 32 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
USS Type for High-ccuracy and Clean Room Use 4-φ4.5 drill thru φ8 c'bore 4.5 depth 3 3 Shaft dia. Ball screw specification Ø1 Preload type Oversize ball (P-preload) PCD 33 Ball dia./screw shaft root dia. 2. / 8.2 Ball circle dia. 1.3 ccuracy grade/axial play C3 / 14 21 Factory-packed grease NSK clean grease L2 rease fitting (oil hole, M5.8 tap) Plug (oil hole, M5.8 tap) 3 3 13 13 26 Cross-section - Recommended support unit For drive side (Fixed) For opposite to drive side (Simple) WBK8-1B (square, low) P 46-47 WBK8S-1B (square, low) P 5 WBK8-11 (round) P 48-49 WBK8S-1C (square, clean) P 5 WBK8-1C (square, clean) P 46-47 - WBK8-11C (round, clean) P 48-49 - Lead accuracy Shaft run-out Dynamic preload torque Target value Error Variation Mass Permissible rotational speed (min -1 ) *2 Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (N cm) *1 (kg) Fixed-simple (cm 3 ) (cm 3 ).1.8.35.2 to 1.8.3.12.8.45.2 to 2..3.15.1.7.2 to 3..5 5.8.4 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 5 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 33
Compact F Series Screw shaft diameter 12 mm, Lead 5 mm.14.1 2-thin plastic seal (synthetic plastic) C.2 1.14.8 E.6 φ5.7 φ11.5.2.8 φ8 M8 1..2.1 φ6 φ12.7.2.8 φ24g6 φ44 φ6h6 F.8 +.1 +.1 6.8 6 4 E 9 (8.1).3 F 9.8 6 (8.7) (7) 11 3 L t (quenching range) L a (3) 7 8.3 E 27 37 1 L Reference no. Screw shaft Basic load ratings (N) Stroke Lead dia. Screw shaft dimensions Dynamic Static Max. d C a C a Nominal L t -L L t L a L USS125N1D221 1 13 16 175 221 USS125N1D321 12 5 3 2 5 86 2 23 26 275 321 USS125N1D621 5 53 56 575 621 Notes 1. Indicates ball screw preload control value. pproximately.5 N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 34 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
USS Type for High-ccuracy and Clean Room Use 3 3 4-φ4.5 drill thru φ8 c'bore 4.5 depth Shaft dia. Ball screw specification Ø12 PCD 34 Preload type Oversize ball (P-preload) Ball dia./screw shaft root dia. 2. / 1.2 Ball circle dia. 12.3 14.5 21.5 ccuracy grade/axial play C3 / Factory-packed grease NSK clean grease L2 rease fitting (oil hole, M5.8 tap) 3 Plug (oil hole, M5.8 tap) 3 13.5 13.5 27 Cross-section - Recommended support unit For drive side (Fixed) For opposite to drive side (Simple) WBK8-1B (square, low) P 46-47 WBK8S-1B (square, low) P 5 WBK8-11 (round) P 48-49 WBK8S-1C (square, clean) P 5 WBK8-1C (square, clean) P 46-47 - WBK8-11C (round, clean) P 48-49 - Permissible Lead accuracy Shaft run-out Dynamic rotational speed Internal spatial Standard volume of Mass preload torque (min -1 ) *2 volume of nut grease replenishing Target value Error Variation T e p V u C (N cm) *1 (kg) Fixed-simple (cm 3 ) (cm 3 ).1.8.35.2 to 1.8.3.12.8.45.2 to 2..3.16.12.7.2 to 3..7 5 1.5 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 5 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 35
.13.1.25 12.13.8 E.9 φ9.6 +.1 9.15 +.14 1.15 M12 1..4.12 φ1 φ15.3.11 φ12 φ51 Compact F Series Screw shaft diameter 15 mm, Lead 5 mm 2-thin plastic seal (synthetic plastic) C φ15.7.2 φ28g6.9 φ1h6 F (8.1) E.3 F.8 3 6 (8.7) (7) 11 (3) 8 5 1.3 E ( L t (quenching range) 15 3 15 12 L a 45 L Reference no. Screw shaft Basic load ratings (N) Stroke Lead dia. Screw shaft dimensions Dynamic Static Max. d C a C a Nominal L t -L L t L a L USS155N1D261 1 159 189 24 261 USS155N1D361 2 259 289 34 361 15 5 5 46 1 2 USS155N1D561 4 459 489 54 561 USS155N1D761 6 659 689 74 761 Notes 1. Indicates ball screw preload control value. pproximately.5 N cm of torque is added due to thin plastic seals. 2. Contact NSK if permissible rotational speed is to be exceeded. 36 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
USS Type for High-ccuracy and Clean Room Use 3 3 4-φ5.5 drill thru φ9.5 c'bore 5.5 depth Shaft dia. Ball screw specification Ø15 PCD 39 Preload type Oversize ball (P-preload) Ball dia./screw shaft root dia. 2.778 / 12.6 Ball circle dia. 15.5 18 25 ccuracy grade/axial play C3 / Factory-packed grease NSK clean grease L2 rease fitting (oil hole, M5.8 tap) Plug (oil hole, M5.8 tap) 3 15.5 31 3 15.5 Cross-section - Recommended support unit For drive side (Fixed) For opposite to drive side (Simple) WBK12-1B (square, low) P 46-47 WBK12S-1B (square, low) P 5 WBK12-11 (round) P 48-49 WBK12S-1C (square, clean) P 5 WBK12-1C (square, clean) P 46-47 - WBK12-11C (round, clean) P 48-49 - Permissible Lead accuracy Shaft run-out Dynamic rotational speed Internal spatial Standard volume of Mass preload torque (min -1 ) *2 volume of nut grease replenishing Target value Error Variation T e p V u C (N cm) *1 (kg) Fixed-simple (cm 3 ) (cm 3 ).1.8.25.2 to 5..5.12.8.35.2 to 5..6 5.15.1.45.2 to 6..9.18.13.6.2 to 8. 1.1 3 6 2 1 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 5 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 37
Compact F Series Screw shaft diameter 12 mm, Lead 1 mm.2 2-thin plastic seal (synthetic plastic) -.2 1 C.25 M8 1.. 14 E φ12g7 -.7 -.2 φ24g6 φ 44 (8.1) -.6 -.24 φ8 φ11.5 -.2 -.1 -.8 φ6h6 6 4 E 9.1 4 43 6 (7) 11 (8.7) L t (quenching range) L a (3) 15 8. 6 E 27 37 1 L Reference no. Screw shaft dia. Lead Dynamic Basic load ratings (N) Static Screw shaft dimensions d C a C a L t L a L FSS121N1D4 348 363 4 FSS121N1D6 12 1 3 2 5 86 548 563 6 FSS121N1D9 848 863 9 Notes 1. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Permisslbe rotational speed varies when using cut screws shaft. It is necessary to calculate two items below, and whichever is smaller is the permissible rotational speed. * Critical speed which is the resonance vibration of the shaft. * Maximum rotational speed 5 min -1. 38 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
FSS Type for Transfer Equipment 3 3 4-φ4.5 drill thru φ8 c'bore 4.5 depth Ball screw specification Ball dia./screw shaft root dia. 2. / 1.2 Ball circle dia. 12.3 PC D 34 ccuracy grade/axial play Factory-packed grease Ct7 /.1 or less NSK grease LR3 14. 5 21.5 Recommended support unit For drive side (Fixed) For opposite to drive side (Simple) rease fitting (oil hole, M5.8 tap) WBK8-1B (square, low) P 46-47 WBK12SF-1B (square, low) P 51 Plug (oil hole, M5.8 tap) 3 13.5 13.5 3 27 Cross-section - Lead accuracy Target value Error Variation Shaft run-out Mass Internal spatial volume of nut Standard volume of grease replenishing T e p V u C (kg) (cm 3 ) (cm 3 ).12.8.5.195.52.12.7.31.18 1. 1..5 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 39
Compact F Series Screw shaft diameter 15 mm, Lead 1 and 2 mm.2 2-thin plastic seal (synthetic plastic) C -.25 12.25. 14 E M12 1. -.6 -.24 φ15g7 -.7 -.1 φd1g6 φd2 φ15 -.3 -.11 φ12 -.9 φ1h6 8 5 E 1 6.1 4 (7) 11 L L t (quenching range) L a (3) (8.1) (8.7) L 1. 6 E 3 45 15 L Reference no. Screw shaft dia. Lead Dynamic Basic load ratings (N) Static Screw shaft dimensions d C a C a L t L a L L 1 FSS151N1D5 44 455 5 FSS151N1D1 1 5 46 1 2 94 955 1 FSS151N1D145 1 39 1 45 1 45 15 FSS152N1D5 437 455 5 FSS152N1D1 2 5 7 8 73 937 955 1 FSS152N1D145 1 387 1 45 1 45 15 18 Notes 1. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Permisslbe rotational speed varies when using cut screws shaft. It is necessary to calculate two items below, and whichever is smaller is the permissible rotational speed. * Critical speed which is the resonance vibration of the shaft. * Maximum rotational speed 5 min -1. 4 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
FSS Type for Transfer Equipment 3 3 4-φ5.5 drill thru φ9.5 c'bore 5.5 depth Ball screw specification Lead 1 2 Ball dia./screw shaft root dia. 2.778 / 12.6 3.175 / 12.2 PC D W Ball circle dia. 15.5 ccuracy grade/axial play Ct7 /.1 or less Factory-packed grease NSK grease LR3 rease fitting (oil hole, M5.8 tap) B E Recommended support unit For drive side (Fixed) For opposite to drive side (Simple) WBK12-1B (square, low) P 46-47 WBK15SF-1B (square, low) P 51 Plug (oil hole, M5.8 tap) 3 C 3 Cross-section - Nut dimensions Lead accuracy Target value Error Variation Shaft run-out Mass Internal spatial volume of nut Standard volume of grease replenishing L D 1 D 2 W B C E T e p V u C (kg) (cm 3 ) (cm 3 ) 43 28 51 39 18 31 25 15.5 51 32 55 43 2 33 27 16.5.155.7.9.31.125 1.7.49.2 2.3.52.155.7 1..31.125 1.7.49.2 2.3 2. 1. 2.8 1.4 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 41
Compact F Series Screw shaft diameter 2 mm, Lead 1 and 2 mm.25 2-thin plastic seal (synthetic plastic) -.25 C 17.25. 14 E M15 1. -.11 φ12h6 -.7 -.28 φ2g7 -.9 -.25 φ36g6 φ 62 φ19. 5 -.4 -.12 φ15 1 7 E 15 6.18 (7) 13 L L t (quenching range) L a (3) (8.1) (8.7) 22. 6 E 4 6 2 L Reference no. Screw shaft dia. Lead Dynamic Basic load ratings (N) Static Screw shaft dimensions d C a C a L t L a L FSS21N1D6 518 54 6 FSS21N1D1 1 8 79 18 5 918 94 1 FSS21N1D145 1 368 1 39 1 45 2 FSS22N1D6 518 54 6 FSS22N1D1 2 5 9 11 7 918 94 1 FSS22N1D145 1 368 1 39 1 45 Notes 1. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Permisslbe rotational speed varies when using cut screws shaft. It is necessary to calculate two items below, and whichever is smaller is the permissible rotational speed. * Critical speed which is the resonance vibration of the shaft. * Maximum rotational speed 5 min -1. 42 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
FSS Type for Transfer Equipment 3 3 4-φ6.6 drill thru φ11 c'bore 6.5 depth Ball screw specification Ball dia./screw shaft root dia. 3.175 / 17.2 PC D 49 Ball circle dia. 2.5 ccuracy grade/axial play Ct7 /.1 or less Factory-packed grease NSK grease LR3 23.5 3.5 Recommended support unit rease fitting (oil hole, M5.8 tap) Plug (oil hole, M5.8 tap) 3 19 19 38 3 For drive side (Fixed) For opposite to drive side (Simple) WBK15-1B (square, low) P 46-47 WBK2SF-1B (square, low) P 51 Cross-section - Nut length Lead accuracy Target value Error Variation Shaft run-out Mass Internal spatial volume of nut Standard volume of grease replenishing L T e p V u C (kg) (cm 3 ) (cm 3 ).195.85 1.7 45.31.125 2.6.49.2 3.6.52.195.85 1.8 3.2 1.6 54.31.125 2.7.49.2 3.8 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 43
Compact F Series Screw shaft diameter 25 mm, Lead 1, 2 and 25 mm.25 2-thin plastic seal (synthetic plastic) -.35 C 22.3 M2 1.. 14 E -.7 -.28 φ25g7 -.9 -.25 φ4g6 -.11 φ φ15h6 62 φ25 -.5 -.14 φ2 6.1 8 (7) (3) (8.1) 12 (8.7) L Lt (quenching range) La 12 1 L1 16 E. 6 E 53 8 27 Lo Reference no. Screw shaft dia. Lead Dynamic Basic load ratings (N) Static Screw shaft dimensions d C a C a L t L a L L 1 FSS251N1D6 493 52 6 FSS251N1D1 1 12 8 32 3 893 92 1 FSS251N1D145 1 343 1 37 1 45 FSS252N1D6 494 52 6 FSS252N1D1 25 2 894 92 1 FSS252N1D145 1 344 1 37 1 45 6 56 14 6 FSS2525N1D6 49 52 6 FSS2525N1D1 25 89 92 1 FSS2525N1D145 1 34 1 37 1 45 27 26 3 Notes 1. pproximately 2. N cm of torque is added due to thin plastic seals. 2. Permisslbe rotational speed varies when using cut screws shaft. It is necessary to calculate two items below, and whichever is smaller is the permissible rotational speed. * Critical speed which is the resonance vibration of the shaft. * Maximum rotational speed 5 min -1. 44 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
FSS Type for Transfer Equipment 45 45 6-φ6.6 drill thru (PCD 51) Ball screw specification Ball dia./screw shaft root dia. 3.175 / 22.2 3.5 23.5 PC D 51 Ball circle dia. 25.5 ccuracy grade/axial play Ct7 /.1 or less Factory-packed grease NSK grease LR3 rease fitting (oil hole, M5.8 tap) Plug (oil hole, M5.8 tap) 22.5 45 24 24 45 48 Cross-section - Recommended support unit For drive side (Fixed) For opposite to drive side (Simple) WBK2-1 (square) P 46-47 WBK25SF-1 (square) P 51 Nut length Lead accuracy Target value Error Variation Shaft run-out Mass Internal spatial volume of nut Standard volume of grease replenishing L T e p V u C (kg) (cm 3 ) (cm 3 ).155.65 2.6 56.31.9 4. 4.7 2.4.49.13 5.8.155.65 2.6 54.31.52.9 4. 3.9 2..49.13 5.8.155.65 2.6 63.31.9 4.1 4.3 2.2.49.13 5.8 3. Service temperature range is to 8ºC. 4. Use of NSK support unit is recommended. Refer to pages 46 to 51 for details. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 45
Support Units Fixed support side support unit (square type) WBK4 and 6 Set screw Brass pad S d1 M K J N WBK8 to 2 E F Retaining cover Set screw S E F B Brass pad Retaining cover Set screw φd1 S C -.5 D Brass pad M B φd1 W W C -.5 D K J Reference no. Use d 1 B C D E F L J K R T U N M K J L L N N WBK4-1M eneral 4 27 17. 1. 6 14 1-14. 5.5 7. 9 1.5 2. WBK6-1M eneral 6 35 22.5 13. 8 19 12-17. 7.5 9.5 12 2.5 2.5 WBK8-1 eneral 52 32. 17. 26 25 23. 23. 7. 4. WBK8-1B Low type 8 62 31. 15.5 31-14 21.5 25.5 4.5 - - - 3.5 WBK8-1C Clean 52 32. 17. 26 25 23. 23. 7. 4. WBK1-1 eneral 43. 25. 35 36 WBK1-1B Low type 1 7 38. 2. 38-17 24. 3. 5.5 - - - 6. WBK1-1C Clean 43. 25. 35 36 WBK12-1 eneral 43. 25. 35 36 WBK12-1B Low type 12 7 38. 2. 38-19 24. 3. 5.5 - - - 6. WBK12-1C Clean 43. 25. 35 36 WBK15-1 eneral 5. 3. 4 41 WBK15-1B Low type 15 8 42. 22. 42-22 25. 31. 12. - - - 5. WBK15-1C Clean 5. 3. 4 41 WBK2-1 eneral 2 95 58. 3. 45 56 3 42. 52. 1. - - - 1. Notes 46 1. Use datum surface for mounting to machine base. 2. Tighten set screw after locknut has been adjusted and tightened. 3. Insert brass pad provided with unit into locknut set screw hole, then insert and tighten the set screw. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
Square Type T U Reference no. Tightening torque (reference) [N cm] Locknut Set screw WBK4-** 1 69 (M3) WBK6-** 19 69 (M3) WBK8-** 23 69 (M3) 2-φ drill thru H View S (WBK4 and 6) WBK1-** 28 147 (M4) WBK12-** 63 147 (M4) WBK15-** 79 147 (M4) WBK2-** 1 67 147 (M4) 2-φ drill thru φy c'bore Z depth H 4-φ drill thru φy c'bore Z depth Q P Q View S (WBK8 to 15) Counterbore dimensions H P Q W Y Z Mass (kg) Basic dynamic load rating Specification xial Direction Load limit View S (WBK2) Rigidity Maximum starting torque 4. Deep groove ball bearing and snap ring are also provided for simple support side. (except WBK4-1M, WBK6-1M). 5. For retaining cover side of WBK8-1 and WBK8-1C, there are no seals. 6. For WBK4-1M and WBK6-1M, non-contact metal seals are installed in both sides of bearings. Locknut screw C a (N) N (N/mm) (N cm) M ttached bearing for support side 7. - - 21 3.5 - -.3 1 47 464 39.2 M4.5-8.5 - - 26 5.5 - -.5 2 76 854 6.35 M6.75-11.5 38 6.6 11 12.25 4 4 1 45 49.88 11. - - 46 9. 14 18.3 6 6 2 73 94 1.9 M8 1. 66ZZ 11.5 38 6.6 11 12.25 3 1 1 1 36.52 66VV 11.5 6 6 2 73 94 1.9 12. - - 52 9. 14 19.45 6 6 2 73 94 1.9 M1 1. 68ZZ 11.5 4 25 1 364 5 1.1 68VV 11.5 7 1 3 4 14 2.1 12. - - 52 9. 14 19.4 7 1 3 4 14 2.1 M12 1. 6ZZ 11.5 4 7 2 443 57 1.2 6VV 15.7 7 6 3 38 113 2.4 12.5 - - 6 11. 17 23.6 7 6 3 38 113 2.4 M15 1. 62ZZ 15.7 5 1 2 757 63 1.3 62VV - 22 1 75 11. 17 15 1.4 17 9 8 24 155 6.2 M2 1. 624ZZ Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 47
Support Units Fixed support side support unit (round type) WBK4 and 6 2-φ drill thru 2-φ drill thru PCD W PCD W Set screw Brass pad Set screw Brass pad L K L K φd2 φd2 d1 d1 φc U φc φc WBK8 to 2 45 U U φc φc U 45 45 U 4-φ drill thru L φy c'bore, Z depth Retaining cover PCD W Set screw 4-φ 切り通し後 L 4-φ 切り通し後 Brass pad φy 座ぐり深さ Z 押えぶた φy 座ぐり深さ Z 押えぶた固定止めねじ PCD W 固定止めねじ PCD W セットピースセットピース Retaining cover M Retaining cover H F E Cross section - (Example 1) M M J H / 2 / 2 F E View - (Example J1) H J H / 2 / 2 F E / 2 / 2 F E Reference no. Use d 1 C D 1 D 2 E H L K F N U P Q F J φd1 φd1 K K J φd1 E L H K WBK4-11M eneral 4 14 26 14 14. 13.5 8.5 7. 1.5 5.5 6.6 1 2.6 2.4 WBK6-11M eneral 6 19 34 19 18.5 17. 12. 9.5 2.5 7.5 8. 12 3. 2. WBK8-11B High-load 42 52 34 25.5 15.5 12. 3.5 4.5 7. 6. WBK8-11 eneral 8-14 4. 35 43 28 23. 14. 1. 4. 7. 8. 5. WBK8-11C Clean WBK1-11 eneral WBK1-11C Clean 1 42 52 34-27. 17. 12. 5. 7.5 8.5 17 6. 4. WBK12-11 eneral WBK12-11C Clean 12 44 54 36-27. 17. 12. 5. 7.5 8.5 19 6. 4. WBK15-11 eneral 15 52 63 4 WBK15-11C Clean - 32. 17. 11. 6. 12. 14. 22 8. 7. WBK2-11 eneral 2 68 85 57 52. 3. 2. 1. 1. 14. 3 14. 8. Notes 48 1. Tighten set screw after locknut has been adjusted and tightened. 2. Insert brass pad provided with unit into locknut set screw hole, then insert and tighten the set screw. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
Round Type Set screw Brass pad Q P Reference no. Tightening torque (reference) [N cm] Locknut Set screw WBK4-** 1 69 (M3) WBK6-** 19 69 (M3) WBK8-** 23 69 (M3) WBK1-** 28 147 (M4) N H J WBK12-** 63 147 (M4) WBK15-** 79 147 (M4) WBK2-** 1 67 147 (M4) Set screw Q P Retaining cover Brass pad φd1g6 φd1 φd1g6 d1 Cross section - (Example 2) N H J View - (Example 2) Counterbore dimensions J W Y Z Mass (kg) Basic dynamic load rating Specification xial Direction Load limit Rigidity Maximum starting torque Locknut screw C a (N) N (N/mm) (N cm) M ttached bearing for support side 3 2 3.5 - -.2 1 47 464 39.2 M4.5-4 26 4.5 - -.4 2 76 854 6.35 M6.75-1 42 4.5 8..2 6 6 2 73 94 1.9 66ZZ 9 35 3.4 6.5 4 4 4 1 45 49.88 M8 1. 66ZZ.15 3 1 1 1 36.52 66VV 1 42 4.5 8. 4.2 6 6 2 73 94 1.9 68ZZ M1 1. 4 25 1 364 5 1.1 68VV 1 44 4.5 8. 4.25 7 1 3 4 14 2.1 6ZZ M12 1. 4 7 2 443 57 1.2 6VV 15 5 5.5 9.5 6.4 7 6 3 38 113 2.4 62ZZ M15 1. 5 1 2 757 63 1.3 62VV 22 7 6.6 11. 1 1.1 17 9 8 24 155 6.2 M2 1. 624ZZ 3. Deep groove ball bearing and snap ring are also provided for simple support side. (except WBK4-11M and WBK6-11M) 4. For retaining cover side of WBK8-11 and WBK8-11C, there are no seals. 5. For WBK4-11M and WBK6-11M, non-contact metal seals are installed in both sides of bearings. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 49
Support Units for Simple Support Side Simple support side support unit for PSS and USS types 2-φ drill thru φy c'bore Z depth W C -.5 B φd2 φd1 R/2 R/2 R Reference no. Counterbore dimensions Use d 2 B C R W Y Z Mass (kg) Bearing reference no. Radal direction basic dynamic load rating (N) WBK8S-1B Low 6 62 31 15.5 16 46 9 14 18.2 66ZZ 2 26 WBK12S-1B Low 1 7 38 2. 2 52 9 14 19.4 6ZZ 4 55 WBK15S-1B Low 15 8 42 22. 2 6 9 14 23.4 62ZZ 5 6 Note 1. Use datum surface for mounting to machine base. E 2-φ drill thru φy c'bore Z depth C -.5 D B φd2 φd1 Note W 1. Use datum surface for mounting to machine base. R/2 R/2 R Reference no. Use d 2 B C D E R Counterbore dimensions W Y Z Mass (kg) Bearing reference no. Radal direction basic dynamic load rating (N) WBK8S-1 eneral 66ZZ 2 26 6 52 32 17 26 25 15 38 6.6 11 12.15 WBK8S-1C Clean 66VV 2 26 WBK1S-1 eneral 68ZZ 3 3 8 7 43 25 35 36 2 52 9. 14 11.4 WBK1S-1C Clean 68VV 3 3 WBK12S-1 eneral 6ZZ 4 55 1 7 43 25 35 36 2 52 9. 14 11.35 WBK12S-1C Clean 6VV 4 55 WBK15S-1 eneral 62ZZ 5 6 15 8 5 3 4 41 2 6 9. 14 11.45 WBK15S-1C Clean 62VV 5 6 WBK2S-1 eneral 2 95 58 3 45 56 26 75 11. 17 15.8 624ZZ 12 8 5 Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com
Square Type Simple support side support unit for FSS types 2-φ drill thru φy c'bore Z depth W C -.5 B φd Reference no. d B C R Counterbore dimensions R / 2 W Y Z R Mass (kg) Bearing reference no. Radial direction basic dynamic load rating (N) WBK12SF-1B 12 62 31 15.5 18 46 9 14 18.2 681ZZ 1 92 WBK15SF-1B 15 7 38 2. 18 52 9 14 19.3 692ZZ 4 35 WBK2SF-1B 2 8 42 22. 22 6 11 17 23.4 684ZZ 4 Note 1. Use datum surface for mounting to machine base. 2-φ drill thru φy c'bore Z depth W E C -.5 D B φd R / 2 R Reference no. d B C D E R Counterbore dimensions W Y Z Mass (kg) Bearing reference no. Radial direction basic dynamic load rating (N) WBK25SF-1 25 95 58 3 45 56 22 75 11 17 15.55 65ZZ 1 1 Note 1. Use datum surface for mounting to machine base. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com 51
Worldwide Sales Offices NSK Ltd. Headquarters, Tokyo, Japan www.nsk.com sia Business Strategic Division - Headquarters tel: 81-3-3779-7145 Industrial Machinery Bearings Division - Headquarters tel: 81-3-3779-7227 utomotive Division - Headquarters tel: 81-3-3779-7189 Needle Roller Bearings Strategic tel: 81-3-3779-2563 Division - Headquarters Precision Machinery & Parts tel: 81-3-3779-7219 Division - Headquarters frica South frica: NSK South frica (Pty) Ltd. Johannesburg tel: 27-11-458-36 sia and Oceania ustralia: NSK ustralia Pty. Ltd. www.nskaustralia.com.au Melbourne tel: 61-3-9764-832 China: NSK Hong Kong Ltd. Hong Kong tel: 86-2739-9933 Kunshan NSK Co., Ltd. Kunshan Plant tel: 86-52-73-5654 Changshu NSK Needle Bearing Co., Ltd. Jiangsu Plant tel: 86-512-523-1111 uizhou HS NSK Bearings Co., Ltd. nshun Plant tel: 86-853-352155 NSK Steering Systems Dongguan Co., Ltd. Dongguan Plant tel: 86-769-262-96 Zhangjiagang NSK Precision Machinery Co., Ltd. Jiangsu Plant tel: 86-512-5867-6496 Timken-NSK Bearings (Suzhou) Co., Ltd. Jiangsu Plant tel: 86-512-6665-5666 NSK China Technology Center Jiangsu tel: 86-512-5771-5654 NSK (Shanghai) Trading Co., Ltd. Shanghai tel: 86-21-6235-198 Beijing tel: 86-1-659-8161 uangzhou tel: 86-2-3786-4833 nshun tel: 86-853-3522522 Chengdu tel: 86-28-8661-42 Shenzhen tel: 86-755-2594886 Changchun tel: 86-431-8988682 NSK (China) Investment Co., Ltd. Shanghai tel: 86-21-6235-198 India: Rane NSK Steering Systems Ltd. Chennai tel: 91-44-274-662 NSK Ltd. India Branch Office Chennai tel: 91-44-2446-6862 Indonesia: PT. NSK Bearings Manufacturing Indonesia Jakarta tel: 62-21-898-155 PT. NSK Indonesia Jakarta tel: 62-21-252-3458 Korea: NSK Korea Co., Ltd. www.kr.nsk.com Seoul tel: 82-2-3287-3 Changwon Plant tel: 82-55-287-61 Malaysia: NSK Bearings (Malaysia) Sdn. Bhd. Kuala Lumpur tel: 6-3-7722-3372 NSK Micro Precision (M) Sdn. Bhd. Malaysia Plant tel: 6-3-961-6288 New Zealand: NSK New Zealand Ltd. www.nsk-rhp.co.nz uckland tel: 64-9-276-4992 Philippines: NSK Representative Office Makati City tel: 63-2-893-9543 Singapore: NSK International (Singapore) Pte Ltd. Singapore tel: 65-6496-8 NSK Singapore (Pte) Ltd. www.nsk-singapore.com.sg Singapore tel: 65-6496-8 Taiwan: Taiwan NSK Precision Co., Ltd. Taipei tel: 886-2-259-335 Thailand: NSK Bearings (Thailand) Co., Ltd. Bangkok tel: 66-2-6412-15 SIM NSK Steering Systems Co., Ltd. Chachoengsao tel: 66-38-522-343~35 NSK sia Pacific Technology Center (Thailand) Co., Ltd. Chonburi tel: 66-38-454631~454633 Vietnam: NSK Representative Office Hanoi tel: 84-4-935-1269 Europe NSK Europe Ltd. (European Headquarters) www.eu.nsk.com Maidenhead, U.K. tel: 44-1628-598 France: NSK France S..S Paris tel: 33-1-3-57-39-39 ermany: NSK Deutschland mbh Düsseldorf tel: 49-212-481- NSK Steering Systems Europe Ltd. Stuttgart tel: 49-771-7982-277 Neuweg Fertigung mbh Munderkingen tel: 49-7393-54 Italy: NSK Italia S.p.. Milano tel: 39-2-995-19-1 Industria Cuscinetti S.p.. Torino Plant tel: 39-119824811 Netherlands: NSK European Distribution Centre B.V. Tilburg tel: 31-13-4647647 Poland: NSK Polska Sp. z.o.o. Warsaw Branch tel: 48-22-645-1525 NSK Iskra S.. Kielce tel: 48-41-366-6111 NSK European Technology Center, Poland Office Kielce tel: 48-41-366-5812 Spain: NSK Spain S.. Barcelona tel: 34-93-289-27-63 Turkey: NSK Rulmanlari Orta Dogu Tic. Ltd Sti tel: 9-216-442-716 United Kingdom: NSK Bearings Europe Ltd. Peterlee Plant tel: 44-191-586-6111 NSK European Technology Centre Newark tel: 44-1636-65123 NSK UK Ltd. Newark tel: 44-1636-65123 NSK Steering Systems Europe Ltd. Coventry tel: 44-24-76-3371 North and South merica NSK mericas, Inc. (merican Headquarters) nn rbor, Michigan tel: 1-734-913-75 rgentina: NSK rgentina SRL Buenos ires tel: 54-11-4762-6556 Brazil: NSK Brasil Ltda. www.br.nsk.com São Paulo tel: 55-11-3269-47 Canada: NSK Canada Inc. www.ca.nsk.com Toronto tel: 1-95-89-74 Mexico: NSK Rodamientos Mexicana, S.. de C.V. www.mx.nsk.com Mexico City tel: 52-55-368229 United States of merica: NSK Corporation www.nskamericas.com nn rbor, Michigan tel: 1-734-913-75 NSK merican Technology Center nn rbor, Michigan tel: 1-734-913-75 NSK Precision merica, Inc. www.nskamericas.com Franklin, Indiana tel: 8-255-4773 NSK Steering Systems merica, Inc. www.nssa.nsk.com Bennington, Vermont tel: 1-82-442-5448 NSK Latin merica, Inc. www.la.nsk.com Miami, Florida tel: 1-35-477-65 NSK Ltd. has a basic policy not to export any products or technology designated as controlled items by export-related laws. When exporting the products in this brochure, the laws of the exporting country must be observed. Specifications are subject to change without notice and without any obligation on the part of the manufacturer. Every care has been taken to ensure the accuracy of the data contained in this brochure, but no liability can be accepted for any loss or damage suffered through errors or omissions. We will gratefully acknowledge any additions or corrections. Compact F - Rev 9/B/1M15. Printed in the US NSK 215. The contents of this publication are the copyright of the publishers. Courtesy of Steven Engineering, Inc. - (8) 258-92 - sales@steveneng.com - www.stevenengineering.com