NSK LINEAR GUIDES NH SERIES, NS SERIES

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1 NSK INEAR UIDES N SERIES, NS SERIES

2 As one of the world s leading manufacturers of rolling bearings, linear technology components and steering systems, we can be found on almost every continent with production facilities, sales offices and technology centres because our customers appreciate short decision-making channels, prompt deliveries and local service. Europe Asia The Americas Africa Oceania The NSK company NSK commenced operations as the first apanese manufacturer of rolling bearings back in Ever since, we have been continuously expanding and improving not only our product portfolio but also our range of services for various industrial sectors. In this context, we develop technologies in the fields of rolling bearings, linear systems, components for the automotive industry and mechatronic systems. Our research and production facilities in Europe, Americas and Asia are linked together in a global technology network. ere we concentrate not only on the development of new technologies, but also on the continuous optimisation of quality at every process stage. Among other things, our research activities include product design, simulation applications using a variety of analytical systems and the development of different steels and lubricants for rolling bearings. 2

3 Partnership based on trust and trust based on quality Total Quality by NSK: The synergies of our global network of NSK Technology Centres. ust one example of how we meet our requirements for high quality. NSK is one of the leading companies with a long tradition in patent applications for machine parts. In our worldwide research centres, we not only concentrate on the development of new technologies, but also on the continual improvement of quality based on the integrated technology platform of tribology, material technology, analysis and mechatronics. More about NSK at or call us on + 44 (0) N SERIES, NS SERIES 3

4 eatures of N and NS Series Using NSK s cumulated knowledge and state of the art technology, a new series of standard linear guides has been designed. Based on the and S series which were characterised by high reliability and performance, NSK has achieved a significant increase in durability. Inheriting features such as random matching and the NSK K1 lubrication unit, this new series of linear guides can be used in numerous industrial applications. 1. Excellent durability Super-long life, twice as long as compared with the conventional series Compared to the conventional and S series, a load rating 1.3 times greater and a lifetime two times longer have been achieved. These improvements allow the design of machines with longer lifetime and reliability, and also allow the opportunity to downsize while retaining or even improving the original lifetime. Maintenance-free The NSK K1 unit (optional), which has an excellent track record in a wide range of application types, assures long term maintenance free operation. As well as maintenance savings, the K1 unit is also environmentally friendly. Robust design to absorb mounting errors Similar to a D arrangement using angular contact ball bearings, the self aligning capability of the new N and NS series is high, as the intersection point of the contact lines of the ball and grooves is inside the slider, and thus reduces moment rigidity (ig. 1). This allows the linear guide to accept greater errors in installation, and results in less effort in achieving a high precision when mounting the linear guide. ig. 1 hat is NSK K1 lubrication unit? NSK K1 is a lubrication device which combines oil and resin in a single unit. The porous resin contains a large amount of lubrication oil. Through contact between the surface of the K1 unit and the rail raceway close to the ball contact point, the NSK K1 unit constantly supplies fresh oil to where it is needed most. 2. Easy-to-use Standard inear uides Random matching (interchangeable) types are available Rails and ball slides can be selected in any combination. Random matching is available for all models. Various combinations of different ball slide types, accuracy grades and preload can be made. Short delivery times are also available. Abundant options Abundant options are available, including an NSK K1 lubrication unit, double seal, protector, surface treatment, etc. e offer the configuration best suited to the customer s needs. All mounting dimensions are the same as those for the and S Series All mounting dimensions such as the mounting height, mounting width, mounting hole diameter/pitch of the linear guide etc., of the new N series are identical to those of the conventional series. The mounting dimensions of the NS series are also identical to the conventional S series. Therefore the new N/NS series is fully interchangeable, and no design changes are required. 4

5 New standard linear guides produced through state-of-the-art technology Based on the /S Series, which have achieved exceptional results in numerous application areas ever since their debut in 1989, the new N/NS Series have been created as the focal point of NSK s cumulated state-of-the-art design and manufacturing technologies. /S Series with high reliability and performance + NSK's state-of-the-art design/ manufacturing technologies = New series of standard linear guides: the N Series and NS Series Ball groove geometry contributes to long life A new design of ball groove geometry has been introduced, using NSK s state of the art tribological and analytical technologies. By optimising the distribution of contact surface pressures, the rating lifetime has been dramatically increased. Compared to the /S series, the load rating of the new series has been increased by 30%, while the lifetime has doubled. (Representative values of each series) 0 Basic dynamic load rating [50 km] C 50 N Series Series 1.3 times 1.3 times 1.3 times #20 #25 #30 Ball circulating groove with excellent high-speed properties By reexamining the design practice for the ball circulation path, we have attained smooth ball circulation and a reduced noise level. Therefore, the new N/NS series are more suitable for high speed applications compared to the /S series. Noise level: db (A) N Series Series A decrease of approximately 3 db A decrease of approximately 3 db m/min eed speed 180m/min * Measurement results are obtained from the size #25 linear guide alone. Microphone position: 500 mm above the top of the specimen The noise level varies depending on the microphone position. By mounting a NSK K1 lubrication unit (optional), long-term, maintenance-free operation can be achieved. N SERIES, NS SERIES 5

6 Specifications 1. Ball Slide Shape Two types of ball slides are available: Square type with tapped holes langed type or the square type, a compact, low-profile model is also available. On the mounting holes of the flange type, the tapped part is used to fix the ball slide from the top surface, while the minor diameter can be used as a bolt hole for mounting from the bottom. This enables mounting from either direction, top or bottom. The ball slide length is available in three lengths: standard high-load, long super-high load or short medium-load. The ball slide length differs, depending on the type. Please refer to the dimension table. ig. 2 Ball slide shape Ball Slide Shape Shape/installation method Type (Upper row: Rating; ower row: Ball slide length) igh-load Type Super-high-load type Medium-load-type Standard ong Short AN BN AN BN A B C A B C EM M M EM M M 6

7 2. Maximum Rail ength Table 1 shows the limitations of rail length (maximum length). Depending on the required accuracy grade, the available maximum rail length may be shorter than that shown in Table 1. Table 1 ength limitations of rails Series Material Unit: mm N NS Special high carbon Steel Stainless steel Special high carbon steel Stainless steel Note: Rails can be butted if user requirement exceeds the rail length shown in the table. Please consult NSK. 3. Accuracy The determination of the accuracy grade differs depending on whether the required type is a preloaded assembly or the random-matching type. or the preloaded assembly, different accuracy grades are available: Ultra precision P3, Super precision P4, igh precision P5, Precision P6, and Normal PN grades. Random-matching type has igh precision P and Normal PC grade. Table 2 Tolerance of preloaded assembly Unit: µm Accuracy grade Characteristics Ultra precision P3 Super precision P4 igh precision P5 Precision grade P6 Normal grade PN Mounting height Variation of (All ball slides on a set of rails) ±10 3 ±10 5 ±20 7 ±40 15 ±80 25 Mounting width 2 or 3 Variation of 2 or 3 (All ball slides on reference rail) ±15 3 ±15 7 ±25 10 ±50 20 ± Running parallelism of surface C to surface A Running parallelism of surface D to surface B Refer to ig. 3 and Table 4. Table 3 Tolerance of random-matching type Unit: µm Characteristics igh precision grade (P) Accuracy grade Normal grade (PC) Model No. N15,20,25,30,35 NS15,20,25,30,35 N45,55,65 N15,20,25,30,35 NS15,20,25,30,35 N45,55,65 Mounting height ±20 ±30 ±20 ±30 Variation of mounting height Mounting width 2 or 3 ±30 ±35 ±30 ±35 Variation of mounting width 2 or Running parallelism of surface C to surface A Running parallelism of surface D to surface B Refer to ig. 3 and Table 4. Note: Variation in the random-matching products means the variation among the values taken at the same position on the same rail. N SERIES, NS SERIES 7

8 Specifications Table 4 Running parallelism of ball slide Unit: µm Rail length (mm) Ultra precision P3 Super precision P4 Preload assembly igh precision P5 Precision grade P6 Normal grade PN Random-matching type igh precision P Normal grade PC Over ~ 50 or less ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ig. 3 Specifications of accuracy C D D C A roove mark for datum surface (Marked on either lateral or bottom surface for a rail) B 2 K mark Reference rail of preloaded assembly type only roove mark for datum surface K mark Reference rail of preloaded assembly type only 3 B A roove mark for datum surface (Marked on either lateral or bottom surface for a rail) Mounting width 2 Mounting width 3 8

9 4. Preload and Rigidity Preload setting differs between the preloaded assembly and random-matching types. or the preloaded assembly, Medium preload Z3, Slight preload Z1 and ine clearance Z0 are available. or the random-matching type, Medium preload Z, Slight preload ZZ and ine clearance ZT are available. Possible combinations between the accuracy and preload grades are shown in Table 9. Table 5 Preload and rigidity of preloaded assembly (1) N Series Model No. Preload Vertical direction Rigidity (N/μm) ateral direction Slight preload (Z1) Medium preload (Z3) Slight preload (Z1) Medium preload (Z3) Slight preload (Z1) Medium preload (Z3) N15 AN, EM N20 AN, EM N25 A, AN, EM 196 1, N30 A, AN 245 1, N30 EM 294 1, N35 A, AN, EM 390 2, N45 A, AN, EM 635 3, N55 A, AN, EM 980 5, N65 AN, EM 1,470 8, , N15 BN, M N20 BN, M 196 1, N25 B, BN, M 245 1, N30 B, BN, M 390 2, N35 B, BN, M 490 2, N45 B, BN, M 785 4, N55 B, BN, M 1,180 7, , N65 BN, M 1,860 11, , ,040 Note: Clearance for ine clearance Z0 is 0 to 3 μm, Therefore, preload is zero. owever, Z0 of PN grade is 0 to 15 μm. Table 6 Clearance and preload of random-matching type (1) N Series Unit: µm Model No. ine clearance ZT Slight preload ZZ Medium preload Z N15 4 ~ 15 4 ~ 0 3 ~ 7 N20 5 ~ 0 3 ~ 8 N25 5 ~ 0 4 ~ 9 N30 7 ~ 0 5 ~ 12 N35 5 ~ 15 7 ~ 0 5 ~ 12 N45 7 ~ 0 7 ~ 14 N55 9 ~ 0 9 ~ 18 N65 9 ~ 0 10 ~ 19 Note: Minus sign denotes a value is an amount of preload (elastic deformation of balls). N SERIES, NS SERIES 9

10 Specifications Table 7 Preload and rigidity of preloaded assembly (2) NS Series Preload Model No. Vertical direction Rigidity (N/μm) ateral direction Slight preload (Z1) Medium preload (Z3) Slight preload (Z1) Medium preload (Z3) Slight preload (Z1) Medium preload (Z3) NS15 A, EM NS20 A, EM NS25 A, EM NS30 A, EM 245 1, NS35 A, EM 345 1, NS15 C, M NS20 C, M NS25 C, M NS30 C, M NS35 C, M 245 1, Note: Clearance for ine clearance Z0 is 0 to 3 μm, Therefore, preload is zero. owever, Z0 of PN grade is 0 to 15 μm. Table 8 Clearance and preload of random-matching type (2) NS Series Unit: µm Model No. ine clearance (ZT) Slight preload (ZZ) Medium preload (Z) NS15 4 ~ 15 4 ~ 0 3 ~ 7 NS20 4 ~ 15 4 ~ 0 3 ~ 7 NS25 5 ~ 15 5 ~ 0 4 ~ 9 NS30 5 ~ 15 5 ~ 0 4 ~ 9 NS35 5 ~ 15 6 ~ 0 4 ~ 10 Note: Minus sign denotes a value is an amount of preload (elastic deformation of balls). Table 9 Combinations of accuracy and preload Ultra precision Super precision Accuracy grade igh precision Precision grade Normal grade igh precision Normal grade ithout NSK K1 lubrication unit P3 P4 P5 P6 PN P PC ith NSK K1 lubrication unit K3 K4 K5 K6 KN K KC ith NSK K1 for food and medical equipment N C Preload ine clearance Z0 Slight preload Z1 Medium preload Z3 Random-matching type with fine clearance ZT Random-matching type with slight preload ZZ Random-matching type with medium preload Z 10

11 5. Dust-proof parts and ubrication accessories (1) Standard specification As standard, ball slides have an end seal on both ends and bottom seals underneath. This standard configuration can be used for normal application conditions or more challenging application conditions, optional dust proof parts are available as shown in Table 10 Table 10 Optional dust-proof parts Name NSK K1 lubrication unit Double seal Protector Rail cap Inner seal Bellows Purpose Made of oil impregnated resin. Enhances lubricating functions. Combines two end seals for enhanced sealing function. Protects the end seal from hot and hard contaminants. Prevents foreign matter such as swarf generated in cutting operation from clogging the rail-mounting holes. Installed inside a slide, and prevents foreign matter from entering the rolling contact surface. Covers the linear guide. Note: Inner seals can be selected for N20-65 and NS ig. 4 End seal (side seal) Bottom seal (under seal) (2) Mounting position of lubrication accessories The standard position of grease fittings is the end face of ball slide. rease fittings can also be optionally mounted on the side of the end cap. (ig. 5). Please consult NSK for installation of grease or tube fittings to the ball slide body or side of end cap. ig. 5 Mounting position of lubrication accessories Ball slide body End cap Standard position Optional position N SERIES, NS SERIES 11

12 Specifications (3) NSK K1 ubrication unit Table 11 shows the dimensions of linear guides equipped with the NSK K1 lubrication unit. Table 11 N15 N20 N25 N30 N35 N45 N55 N65 NS15 NS20 NS25 NS30 NS35 Model No. Standard ball slide length Ball slide length installed with two NSK K1 AN, EM BN, M AN, EM BN, M A, AN, EM B, BN, M A, AN EM B, BN, M A, AN, EM B, BN, M A, AN, EM B, BN, M A, AN, EM B, BN, M AN, EM BN, M A, EM C, M A, EM C, M A, EM C, M A, EM C, M A, EM C, M Unit: mm Protruding area Per NSK K1 Protective cover of the grease thickness V 1 thickness V 2 fitting N (5) (14) (14) 5 1 (14) (14) (15) (15) 8 1 (16) (5) (14) (14) 5 1 (14) (14) ig. 6 N V1 V2 Protective cover V2 V1 End seal NSK K1 Notes: (1) NSK K1 for food and medical equipment are available for N15-35 and NS (2) Ball slide length equipped with NSK K1 = (Standard ball slide length) + (Thickness of NSK K1, V 1 x Number of NSK K1) + (Thickness of the protective cover, V 2 x 2) 6. Rust Prevention (1) Stainless steel Slide components made of carbon steel can also be supplied in stainless steel material. The models which can be made with stainless steel are N15-30 and NS owever, the high precision (P) grade and the medium preload (Z) type of the random-matching type can not be made from stainless steel. (2) Surface treatment or surface treatment, NSK recommends low temperature chrome plating or fluoride low temperature chrome plating. Please consult NSK for other surface treatment. Table 12 Material/surface treatment code Code Description C K D Z Special high carbon steel (NSK standard) Stainless steel Special high carbon steel with surface treatment Stainless steel with surface treatment Other, special 12

13 7. Installation (1) Permissible values of mounting error Mounting errors may result in harmful effects, such as shortened operating life, deterioration of motion accuracy and/or friction variation. Using the mounting error types shown in igures 7 and 8 as representative errors, Tables 13 and 14 show the mounting tolerances. ig. 7 ig. 8 e1 e2 500 Table 13 Unit: µm Model No. Value Preload N15 N20 N25 N30 N35 N45 N55 N65 Permissible values of parallelism in two rails e 1 Permissible values of parallelism (height) in two rails e 2 Z0, ZT Z1, ZZ Z3, Z Z0, ZT 375µm/500mm Z1, ZZ, Z3, Z 330µm/500mm Table 14 Unit: µm Model No. Value Preload NS15 NS20 NS25 NS30 NS35 Permissible values of parallelism in two rails e 1 Permissible values of parallelism (height) in two rails e 2 Z0, ZT Z1, ZZ Z3, Z Z0, ZT 375µm/500mm Z1, ZZ, Z3, Z 330µm/500mm N SERIES, NS SERIES 13

14 Specifications (2) Shoulder height and corner radius of the mounting surface hen horizontally fixing a rail or ball slide by pushing it to the shoulder (the raised portion of the mounting surface) of the bed or table, refer to the shoulder height and corner radius specified in ig. 9 and 10 and Table 15. Shoulder height of the mounting surface and corner radius r r b ' Table 15 Model No. Corner radius (maximum) Shoulder height r a r b ' " Unit: mm r a r a r b '' N N N N ig. 9 Shoulder for the rail datum surface ig. 10 Soulder for the ball slide datum surface N N N N NS NS NS NS NS Maximum allowable speed Table 16 shows an indication of the standard maximum allowable speed, considering a operational lifetime of 10000km with normal operating conditions. owever, the maximum allowable speed can be affected by accuracy of installation, operating temperature, external load, etc. If the permissible distance or speed are exceeded, please contact NSK. Table 16 Maximum allowable speed Series Unit: m/min N NS andling Precautions (1) eavy impact or shock loads may damage the slide and rail. (2) Operating temperature should be less than 80 C. If this temperature is exceeded, the plastic components of the slide may be damaged. (3) If using NSK K1, maximum temperature in use : 50 C momentary maximum temperature in use: 80 C). Do not leave NSK K1 lubrication unit in organic solvent, white kerosene such as hexane, thinner which removes oil, and rust prevention oil which contains white kerosene. (4) Regarding the handling of random-matching products. a) Slides of random-matching type are assembled on a provisional rail (an inserting tool) when it is delivered. b) hen a slide is mounted on a rail, the provisional rail should always be used as a guide. c) Sliders should not be removed from the provisional rail, except when mounting on a rail. 14

15 NS-Series Compact, low-profile shape N-Series arger Ball diameter arger load rating capacity N SERIES, NS SERIES 15

16 Specifications 11. Dimensions N-AN (igh load type/standard, square type) N-BN (Super-high-load type/long, square type) (1) Reference number for assembly N 30 Series name Rail length (mm) Ball slide shape code (refer to ig. 2 on page 6) 1200 AN C 2 -** P5 3 Preload code (refer to Table 9 on page 10) 0:Z0, 1:Z1, 3:Z3, T:ZT, Z:ZZ, :Z Accuracy code (refer to Table 9 on page 10) Design serial number Added to the reference number Material/surface treatment code (refer to Table 12 on page 12) Number of ball slides per rail Assembly (Preloaded assembly, random-matching type) ront view of AN and BN types Side view of AN type MPO MRO B 4-M l (N ) 1 T ød MYO K h 1 E ød 2 1 n () 0 Side view of BN type (N ) 1 Model No. eight Assembly E 2 idth ength Ball slide Mounting hole rease fitting 1 K T B M Pitch l ole size T 1 N idth 1 eight 1 N15AN N15BN N20AN N20BN N25AN N25BN N30AN N30BN N35AN N35BN N45AN N45BN N55AN N55BN N65AN N65BN M M M6 1 9 M M M M M Notes: 1) External appearance of stainless steel ball slides differs from those of carbon steel ball slides ø M M M M Rc1/ Rc1/ Rc1/

17 (2) Reference number for random-matching type Ball Slide Random-matching ball slide series code NA: N Series random-matching ball slide Ball slide shape code (refer to ig. 2 on page 6) NA AN and BN types AN type BN type 30 AN S Z -K Option code -K: Equipped with NSK K1 -: luoride low temperature chrome plating + AS2 grease -50: luoride low temperature chrome plating + 2 grease Preload code No code: ine clearance, Z: Slight preload, : Medium preload Material code No code: Special high carbon steel (NSK standard), S: Stainless steel 4-M l MPO B (N ) (N ) T 1 1 K MYO E 2 1 Rail N C N -** PC Z Random-matching rail series code N1: N Series random-matching rail Rail length (mm) Rail shape code: : Standard Material/surface treatment code (refer to Table 12 on page 12) ød Preload code (refer to Table 9 on page 10) T: ine clearance, Z: Slight preload (common rail for slight or medium preload) Accuracy code P: igh precision grade random-matching type PC: Normal grade random-matching type Design serial number Added to the reference number Butting rail specification* N: Non-butting; : Butting specification *Please consult with NSK for butting rail specification. h 1 ød 1 n () 0 Rail Basic load rating eight Pitch Mounting bolt hole d D h Max. length (reference) 0max () for stainless 2,980 (1,800) 3,960 3,960 4, , , , ,900 2) Dynamic Static Static moment (N m) Ball [50km] [100km] M slide C C 50 C M PO M YO RO (One slide) (Two slides) (One slide) (Two slides) (kg) 14,200 11,300 20, ,100 14,400 32, , ,700 18,800 32, , ,000 24,000 50, , , ,500 26,800 46, , , ,500 36,500 71, , , ,000 32,500 51, , , ,000 48,500 91, ,030 5, , ,500 49,500 80, , , ,000 64, ,000 1,380 1,530 8,350 1,280 7, ,000 84, ,000 2,140 1,740 9,750 1,460 8, , , ,000 2,860 3,000 15,600 2,520 13, , , ,000 3,600 3,000 16,300 2,510 13, , , ,000 4,850 5,150 26,300 4,350 22, , , , , , ,000 6,150 8,950 4,950 10,100 2) The basic load rating complies with ISO standard. (ISO and ISO ) C 50 : the basic dynamic load rating for 50 km rating fatigue life, C 100 : the basic dynamic load rating for 100 km rating fatigue life. 27,900 51,500 4,150 8,450 23,400 43, Unit: mm Rail (kg/m) N SERIES, NS SERIES 17

18 Specifications N-A (igh load type/standard, square low-profile type) N-B (Super-high-load type/long, square low-profile type) (1) Reference number for assembly N 30 Series name Rail length (mm) Ball slide shape code (refer to ig. 2 on page 6) 1200 AN C 2 -** P5 3 Preload code (refer to Table 9 on page 10) 0:Z0, 1:Z1, 3:Z3, T:ZT, Z:ZZ, :Z Accuracy code (refer to Table 9 on page 10) Design serial number Added to the reference number Material/surface treatment code (refer to Table 12 on page 12) Number of ball slides per rail Assembly (Preloaded assembly, random-matching type) ront view of A and B types Side view of A type MPO MRO B 4-M l (N ) 1 MYO T K 1 ød h E ød n () Side view of B type (N ) 1 Model No. eight Assembly E 2 idth ength Ball slide Mounting hole rease fitting 1 K T B M Pitch l ole size T 1 N idth 1 eight 1 N25A N25B N30A N30B N35A N35B N45A N45B N55A N55B Notes: 1) External appearance of stainless steel ball slides differs from those of carbon steel ball slides M6 1 6 M M M M M M M Rc1/ Rc1/

19 (2) Reference number for random-matching type Ball Slide Random-matching ball slide series code NA: N Series random-matching ball slide Ball slide shape code (refer to ig. 2 on page 6) NA A and BN types A type B type 30 A S Z -K Option code -K: Equipped with NSK K1 -: luoride low temperature chrome plating + AS2 grease -50: luoride low temperature chrome plating + 2 grease Preload code No code: ine clearance, Z: Slight preload, : Medium preload Material code No code: Special high carbon steel (NSK standard), S: Stainless steel MRO B 4-M l (N ) MPO K T MYO 1 1 E 2 1 Rail N C N -** PC Z Random-matching rail series code N1: N Series random-matching rail Rail length (mm) Rail shape code: : Standard Material/surface treatment code (refer to Table 12 on page 12) ød Preload code (refer to Table 9 on page 10) T: ine clearance, Z: Slight preload (common rail for slight or medium preload) Accuracy code P: igh precision grade random-matching type PC: Normal grade random-matching type Design serial number Added to the reference number Butting rail specification* N: Non-butting; : Butting specification *Please consult with NSK for butting rail specification. h 1 ød 1 n () 0 Rail Basic load rating eight Pitch Mounting bolt hole d D h Max. length (reference) 0max () for stainless 3,960 4, , , ,960 2) Dynamic Static Static moment (N m) Ball [50km] [100km] C 0 M slide M PO M YO C 50 C 100 RO (One slide) (Two slides) (One slide) (Two slides) (kg) 33,500 45,500 41,000 61,000 62,500 81, , , , ,000 26,800 36,500 32,500 48,500 49,500 64,500 84, , , ,000 46,000 71,000 51,500 91,500 80, , , , , , ,380 2,140 2,860 3,600 4, , ,530 1,740 3,000 3,000 5,150 2) The basic load rating complies with ISO standard. (ISO and ISO ) C 50 : the basic dynamic load rating for 50 km rating fatigue life, C 100 : the basic dynamic load rating for 100 km rating fatigue life; 1,840 3,700 2,290 5,600 4,500 8,350 9,750 15,600 16,300 26, ,280 1,460 2,520 2,510 4,350 1,540 3,100 1,920 4,700 3,800 7,000 8,150 13,100 13,700 22, Unit: mm Rail (kg/m) N SERIES, NS SERIES 19

20 Specifications N-EM (igh-load type/standard, flange type) N-M (Super-high-load type/long, flange type) (1) Reference number for assembly N 30 Series name Rail length (mm) Ball slide shape code (refer to ig. 2 on page 6) 1200 EM C 2 -** P5 3 Preload code (refer to Table 9 on page 10) 0:Z0, 1:Z1, 3:Z3, T:ZT, Z:ZZ, :Z Accuracy code (refer to Table 9 on page 10) Design serial number Added to the reference number Material/surface treatment code (refer to Table 12 on page 12) Number of ball slides per rail Assembly (Preloaded assembly, random-matching type) ront view of EM and M types Side view of EM type MRO MPO T B 4-M (øq2pilot drill ) ød 1 M YO K 1 h E 2 1 ød n () 0 Side view of M type 1 Model No. eight Assembly E 2 idth ength Ball slide Mounting hole rease fitting 1 K T B M Pitch l Q 2 ole size T 1 N idth 1 eight 1 N15EM N15M N20EM N20M N25EM N25M N30EM N30M N35EM N35M N45EM N45M N55EM N55M N65EM N65M M M M (M ) M (M ) M M M M Notes: 1) Parenthesized dimensions are for items made of stainless steel. 2) External appearance of stainless steel ball slides differs from those of carbon steel ball slides Ø M (12) 11 (15) M M M Rc1/ Rc1/ Rc1/

21 (2) Reference number for random-matching type Ball Slide Random-matching ball slide series code NA: N Series random-matching ball slide Ball slide shape code (refer to ig. 2 on page 6) NA EM and M types EM type M type 30 EM S Z -K Option code -K: Equipped with NSK K1 -: luoride low temperature chrome plating + AS2 grease -50: luoride low temperature chrome plating + 2 grease Preload code No code: ine clearance, Z: Slight preload, : Medium preload Material code No code: Special high carbon steel (NSK standard), S: Stainless steel MRO B 4-M (øq2pilot drill ) MPO K T MYO 1 1 E 2 1 Rail N C N -** PC Z Random-matching rail series code N1: N Series random-matching rail Rail length (mm) Rail shape code: : Standard Material/surface treatment code (refer to Table 12 on page 12) ød Preload code (refer to Table 9 on page 10) T: ine clearance, Z: Slight preload (common rail for slight or medium preload) Accuracy code P: igh precision grade random-matching type PC: Normal grade random-matching type Design serial number Added to the reference number Butting rail specification* N: Non-butting; : Butting specification *Please consult with NSK for butting rail specification. h 1 ød 1 n () 0 Rail Basic load rating eight Pitch Mounting bolt hole d D h Max. length (reference) 0max () for stainless 2,980 (1,800) 3,960 3,960 4, , , , ,900 3) Dynamic Static Static moment (N m) Ball [50km] [100km] C 0 M slide M PO M YO C 50 C 100 RO (One slide) (Two slides) (One slide) (Two slides) (kg) 14,200 11,300 20, ,100 14,400 32, , ,700 18,800 32, , ,000 24,000 50, , , ,500 26,800 46, , , ,500 36,500 71, , , ,000 37,500 63, , , ,000 48,500 91, ,030 5, , ,500 49,500 80, , , ,000 64, ,000 1,380 1,530 8,350 1,280 7, ,000 84, ,000 2,140 1,740 9,750 1,460 8, , , ,000 2,860 3,000 15,600 2,520 13, , , ,000 3,600 3,000 16,300 2,510 13, , , ,000 4,850 5,150 26,300 4,350 22, , , , , , ,000 6,150 8,950 4,950 10,100 3) The basic load rating complies with ISO standard. (ISO and ISO ), C 50 : the basic dynamic load rating for 50 km rating fatigue life, C 100 : the basic dynamic load rating for 100 km rating fatigue life; 27,900 51,500 4,150 8,450 23,400 43, Unit: mm Rail (kg/m) N SERIES, NS SERIES 21

22 Specifications NS-C (Medium-load type/short, square low-profile type) NS-A (igh-load type/standard, square low-profile type) (1) Reference number for assembly NS 30 Series name Rail length (mm) Ball slide shape code (refer to ig. 2 on page 6) 1200 A C 2 -** P5 3 Preload code (refer to Table 9 on page 10) 0:Z0, 1:Z1, 3:Z3, T:ZT, Z:ZZ, :Z Accuracy code (refer to Table 9 on page 10) Design serial number Added to the reference number Material/surface treatment code (refer to Table 12 on page 12) Number of ball slides per rail Assembly (Preloaded assembly, random-matching type) ront view of A and C types Side view of A type MRO Mpo B 1 4-M l MYO K T 1 h ød E ød n () Side view of C type 1 2-M l Model No. eight Assembly E 2 idth ength Ball slide Mounting hole rease fitting 1 K T B M Pitch l ole size T 1 N idth 1 eight 1 NS15C NS15A NS20C NS20A NS25C NS25A NS30C NS30A NS35C NS35A M M M6 1 9 M M Notes: 1) External appearance of stainless steel ball slides differs from those of carbon steel ball slides ø M M M M

23 (2) Reference number for random-matching type Ball Slide Random-matching ball slide series code NAS: NS Series random-matching ball slide Ball slide shape code (refer to ig. 2 on page 6) A and C types A type C type MRO NAS 30 A S Z -K Option code -K: Equipped with NSK K1 -: luoride low temperature chrome plating + AS2 grease -50: luoride low temperature chrome plating + 2 grease Preload code No code: ine clearance, Z: Slight preload, : Medium preload Material code No code: Special high carbon steel (NSK standard), S: Stainless steel MPO K T B MYO 1 4-M l 1 2-M l E 2 1 Rail N1S C N -** PC Z Random-matching rail series code N1S: NS Series random-matching rail Rail length (mm) Rail shape code: : Standard, T: The rail mounting bolt hole M4 for NS15 Material/surface treatment code (refer to Table 12 on page 12) ød Preload code (refer to Table 9 on page 10) T: ine clearance, Z: Slight preload (common rail for slight or medium preload) Accuracy code P: igh precision grade random-matching type PC: Normal grade random-matching type Design serial number Added to the reference number Butting rail specification* N: Non-butting; : Butting specification *Please consult with NSK for butting rail specification. h 1 ød 1 n () 0 Rail Basic load rating eight Pitch 60 Mounting bolt hole d D h * Max. length (reference) 0max () for stainless ,920 (1,700) 3,960 3,960 4,000 4,000 2) Dynamic Static Static moment (N m) Ball [50km] [100km] C 0 M slide M PO M YO C 50 C 100 RO (One slide) (Two slides) (One slide) (Two slides) (kg) 7,250 11,200 10,600 15,600 17,700 26,100 24,700 38,000 34,500 52,500 5,750 8,850 8,400 12,400 14,000 20,700 19,600 30,000 27,300 42,000 9,100 16,900 13,400 23,500 20,800 36,500 29,600 55,000 40,000 74, ,470 1,080 2,650 1,670 4,000 2) The basic load rating complies with ISO standard. (ISO and ISO ) C 50 : the basic dynamic load rating for 50 km rating fatigue life, C 100 : the basic dynamic load rating for 100 km rating fatigue life; *) Standard rail mounting bolt hole for NS15 is specified as hole for M3 (3.5 x 6 x 4.5). Please contact NSK to request a different hole for M4 (4.5 x 7.5 x 5.3) , ,220 1,400 3, Unit: mm Rail (kg/m) N SERIES, NS SERIES 23

24 Specifications NS-M (Medium-load type/short, square low-profile type) NS-EM (igh-load type/standard, square low-profile type) (1) Reference number for assembly NS 30 Series name Rail length (mm) Ball slide shape code (refer to ig. 2 on page 6) 1200 EM C 2 -** P5 3 Preload code (refer to Table 9 on page 10) 0:Z0, 1:Z1, 3:Z3, T:ZT, Z:ZZ, :Z Accuracy code (refer to Table 9 on page 10) Design serial number Added to the reference number Material/surface treatment code (refer to Table 12 on page 12) Number of ball slides per rail Assembly (Preloaded assembly, random-matching type) ront view of EM and M types Side view of EM type MPO MPO MRO MRO B B M (øq2 4-M pilot drill) (øq2 pilot drill) MYO MYO K T K T 1 h h ø D ø D E E ø d ø d n n 0 () () 0 Side view of M type 1 2-M (øq2 pilot drill) Model No. eight Assembly E 2 idth ength Ball slide Mounting hole rease fitting 1 K T B M Pitch l Q 2 ole size T 1 N idth 1 eight 1 NS15M NS15EM NS20M NS20EM NS25M NS25EM NS30M NS30EM NS35M NS35EM Notes: 1) External appearance of stainless steel ball slides differs from those of carbon steel ball slides. 2) Parenthesized dimensions are for items made of stainless steel M M6 1 9 (M ) M (M ) M (M ) M (M ) Ø M (12) 11 (15) 12 (15) M M M

25 (2) Reference number for random-matching type Ball Slide Random-matching ball slide series code NAS: NS Series random-matching ball slide Ball slide shape code (refer to ig. 2 on page 6) NAS 30 EM S Z -K Option code -K: Equipped with NSK K1 -: luoride low temperature chrome plating + AS2 grease -50: luoride low temperature chrome plating + 2 grease Preload code No code: ine clearance, Z: Slight preload, : Medium preload Material code No code: Special high carbon steel (NSK standard), S: Stainless steel EM and M types EM type M type MRO MRO MPO MPO B B M (øq2 pilot drill) 4-M (øq2 pilot drill) 1 2-M (øq2 pilot drill) T K T MYO E K MYO 2 1 E Rail 2 Random-matching rail series code N1S: NS Series random-matching rail Rail length (mm) Rail shape code: : Standard, T: The rail mounting bolt hole M4 for NS15 Material/surface treatment code (refer to Table 12 on page 12) 1 N1S ød C N -** PC Z Preload code (refer to Table 9 on page 10) T: ine clearance, Z: Slight preload (common rail for slight or medium preload) Accuracy code P: igh precision grade random-matching type PC: Normal grade random-matching type Design serial number Added to the reference number Butting rail specification* N: Non-butting; : Butting specification *Please consult with NSK for butting rail specification. h 1 ød 1 n () 0 Rail Basic load rating eight Pitch 60 Mounting bolt hole d D h * Max. length (reference) 0max () for stainless ,920 (1,700) 3,960 3,960 4,000 4,000 3) Dynamic Static Static moment (N m) Ball [50km] [100km] C 0 M slide M PO M YO C 50 C 100 RO (One slide) (Two slides) (One slide) (Two slides) (kg) 7,250 11,200 10,600 15,600 17,700 26,100 24,700 38,000 34,500 52,500 3) The basic load rating complies with ISO standard. (ISO and ISO ) C 50 : the basic dynamic load rating for 50 km rating fatigue life, C 100 : the basic dynamic load rating for 100 km rating fatigue life, *) Standard rail mounting bolt hole for NS15 is specified as hole for M3 (3.5 x 6 x 4.5). Please contact NSK to request a different hole for M4 (4.5 x 7.5 x 5.3). 5,750 8,850 8,400 12,400 14,000 20,700 19,600 30,000 27,300 42,000 9,100 16,900 13,400 23,500 20,800 36,500 29,600 55,000 40,000 74, ,470 1,080 2,650 1,670 4, , ,220 1,400 3, Unit: mm Rail (kg/m) N SERIES, NS SERIES 25

26 26 Notes

27 N SERIES, NS SERIES 27

28 NSK Sales Offices Europe, Middle East and Africa UK NSK UK td. Northern Road, Newark Nottinghamshire N24 2 Tel. +44 (0) ax +44 (0) info-uk@nsk.com rance NSK rance S.A.S. Quartier de l Europe 2, rue eorges uynemer uyancourt Cedex Tel. +33 (0) ax +33 (0) info-fr@nsk.com Middle East NSK Bearings ulf Trading Co. AZA View 19, loor 24 Office 2/3 ebel Ali Downtown, PO Box Dubai, UAE Tel (0) ax +971 (0) info-me@nsk.com South Africa NSK South Africa (Pty) td. 27 alaxy Avenue inbro Business Park Sandton 2146 Tel. +27 (011) ax +27 (011) nsk-sa@nsk.com ermany, Austria, Switzerland, Benelux, Nordic NSK Deutschland mb arkortstraße Ratingen Tel. +49 (0) ax +49 (0) info-de@nsk.com Poland & CEE NSK Polska Sp. z o.o. arsaw Branch Ul. Migdałowa 4/ arszawa Tel ax info-pl@nsk.com Spain NSK Spain, S.A. C/ Tarragona, 161 Cuerpo Bajo 2 a Planta, Barcelona Tel ax info-es@nsk.com Italy NSK Italia S.p.A. Via aribaldi, arbagnate Milanese (MI) Tel ax info-it@nsk.com Russia NSK Polska Sp. z o.o. Russian Branch Office I 703, Bldg 29, 18 th ine of Vasilievskiy Ostrov, Saint-Petersburg, Tel ax info-ru@nsk.com Turkey NSK Rulmanları Orta Doğu Tic. td. Şti 19 Mayıs Mah. Atatürk Cad. Ulya Engin İş Merkezi No: 68/3 Kat. 6 P.K.: Kozyatağı - İstanbul Tel ax turkey@nsk.com Please also visit our website: lobal NSK: Every care has been taken to ensure the infor mation in this publication is accurate but no liability can be accepted for any errors or omissions. Copyright NSK The contents of this publication are the copyright of the publishers. Printed in ermany. Ref: NNS/B/E/

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