Linipower Jack JWB. JWM Technical Notes. Drawings JWB Reference Number System Reference Table for Standard Use Dimensions Precautions

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Arlene Cobb
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1 JWB Drawings JWB Reference Number System Reference Table for Standard Use Dimensions Precautions Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 160

2 Drawings JWB (Ball Screw Type) Standard Model Standard Use for Lifting Standard Use for Suspending 161

JWB (Ball Screw Type) Rotation Prevention Type Rotation Prevention Type with Guide Nut JWB (Ball Screw Type) Travel Nut Type Note)The 10 space in each

3 JWB (Ball Screw Type) Rotation Prevention Type Rotation Prevention Type with Guide Nut JWB (Ball Screw Type) Travel Nut Type Note)The 10 space in each cornerbetw een the guide and the pipe a low s sm ooth rotation. Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 162

4 JWM Reference Number System JWB (Ball Screw Type) Jack Type Ball screw Basic Capacity *JWB750 and 1000 are manufactured upon inspecting specific needs. Installation Type Gear Ratio Stroke mm *The above values are examples. For actual stroke used, refer to the Model comparison Table for JWB on page 115. Flange Installation *Be sure to use the flange installation method U or D with travel nuts. *Above are only necessary with travel nuts. 163

Examples) %', -'51 ) : 3 98.0kN ) {10tf} Rotation prevention (for lifting) Gear ratio H (1/8) 5. ) 0m %', -'51 ) : 3 ) 49.

1 ) + () % 5 5) ( 8 5 ' %- ) 5* No symbol Output Option Note) To request the above parts, provide their letter symbols in the order given.

Enter necessary information in the inquiry form on page 219 to contact Tsubaki Emerson. Installation Option Note) For standard lifting only.

5 Examples) %', -'51 ) : kN ) {10tf} Rotation prevention (for lifting) Gear ratio H (1/8) 5. ) 0m %', -'51 ) : 3 ) 49.0kN {5tf} % 1 ( % 86 5 ( )* 5/- -* 1 ) + Gear ratio H (1/6) 5. ) 0 0 Bellows Table Type End Fitting 1) 51 % / Potentiometer, % 0 6 ) 5 :-, & 5 % %. 1 ) + () % 5 5) ( 8 5 ' %- ) 5* No symbol Output Option Note) To request the above parts, provide their letter symbols in the order given. When travel nuts are used, B, and M are not required. Note) Travel nut type with bellows is estimated for each order. Enter necessary information in the inquiry form on page 219 to contact Tsubaki Emerson. Installation Option Note) For standard lifting only. Sensor Option Note) To request the above parts, provide their letter symbols in the order given. Input Option Accessories * Use as a set with clevis mounting adapter. Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 164

6 Reference Table for Standard Use JWB (Ball Screw Type) O O O O O Note 1) The allowable torque is for jack input shaft only. (Reconfirm if synchronous drive.) Note 2) Includes tare drag torque. Note 3) Rotation prevention types for frames are steel square pipes. Note 4) Standard percentage duty cycle is 30 minutes. Thus, driving time is based on 30minute intervals. Precautions 1.All loads (static, dynamic or shock) should be within the rated capacity of the jack at sufficient safety levels. 2.Operating Temperature Range refers to the surface temperature of the jack during operation. To check, measure the surface temperature of the input shaft unit or travel nut (if used). Be sure all the rotating parts have completely stopped before proceeding to measure. 3.Be sure to operate within the allowable input rpm of 1800/min. 4.Number of synchronizing jacks which can be connected on the same line is limited by shaft strength. Refer to the allowable input shaft torque on the above table. 5.Activating torque for the drive unit should be maintained at 200% above the required torque. 6.If operating in freezing temperatures, a change in viscosity may reduce the efficiency of the grease. Set the drive unit so as to accommodate this change. 165

7 7.Since JWB (Ball Screw Type) is highly efficient, sufficient brake that over powers the holding torque is required to sustain its shaft. 8.Be certain that the jack rating exceeds the maximum stroke. Over travel can cause the lift shaft to disengage from the ball nut. JWB (Ball Screw Type) is supported by a stopper (shaft end). However, this is merely for the purpose of securing the screw shaft during installation. While installing, take caution so that the screw shaft does not rotate by its own weight and become disengaged. If rotation cannot be avoided, use a model with rotation prevention. (Contact TEM for details.) 9.Do not use mechanical stops under any circumstances. This will cause major internal damage. 10.Input shaft key is provided with each unit. (Key complies with JIS B standards.) Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 166

8 JWB005 Dimensions - Standard Model O JWB005 Dimensions - Rotation Prevention Type O 167

9 Output Options Note) For detailed measurements on units with bellows, see page 218. JWB005 Dimensions - Travel Nut Type Travel nut type cannot be equipped with optional end fitting (B..M). For types with bellows, refer to page 219. Note) Ball nut return tube and travel flange openings may vary from this drawing. Note the return tube measurements when installing to equipment. O Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 168

10 JWB010 Dimensions - Standard Model O JWB010 Dimensions - Rotation Prevention Type O 169

11 Output Options Note) For detailed measurements on units with bellows, seepage 218. JWB010 Dimensions - Travel Nut Type Note) Ball nut return tube and travel flange openings may vary from this drawing. Note the return tube measurements when installing to equipment. Travel nut type cannot be equipped with optional end fitting (B..M). For types with bellows, refer to page 219. O Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 170

12 JWB025 Dimensions - Standard Model O JWB025 Dimensions - Rotation Prevention Type O 171

13 Output Options JWB025 Dimensions - Travel Nut Type Note) Ball nut return tube and travel flange openings may vary from this drawing. Note the return tube measurements when installing to equipment. Travel nut type cannot be equipped with optional end fitting (B..M). For types with bellows, refer to page 219. O Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 172

14 JWB050 Dimensions - Standard Model JWB050 Dimensions - Rotation Prevention Type O O 173

15 Output Options JWB050 Dimensions - Travel Nut Type Note) Ball nut return tube and travel flange openings may vary from this drawing. Note the return tube measurements when installing to equipment. Travel nut type cannot be equipped with optional end fitting (B..M). For types with bellows, refer to page 219. O Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 174

16 JWB100 Dimensions - Standard Model JWB100 Dimensions - Rotation Prevention Type O O 175

17 Output Options JWB100 Dimensions - Travel Nut Type Travel nut type cannot be equipped with optional end fitting (B..M). For types with bellows, refer to page 219. Note) Ball nut return tube and travel flange openings may vary from this drawing. Note the return tube measurements when installing to equipment. O Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 176

18 JWB150 Dimensions - Standard Model O JWB150 Dimensions - Rotation Prevention Type O 177

19 Output Options JWB150 Dimensions - Travel Nut Type Travel nut type cannot be equipped with optional end fitting (B..M). For types with bellows, refer to page 219. Note) Ball nut return tube and travel flange openings may vary from this drawing. Note the return tube measurements when installing to equipment. O Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 178

20 JWB200 Dimensions - Standard Model JWB200 Dimensions - Rotation Prevention Type O O 179

21 Output Options JWB200 Dimensions - Travel Nut Type Travel nut type cannot be equipped with optional end fitting (B..M). For types with bellows, refer to page 219. Note) Ball nut return tube and travel flange openings may vary from this drawing. Note the return tube measurements when installing to equipment. O Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 180

22 JWB300 Dimensions - Standard Model Output Options O 181

23 JWB500 Dimensions - Standard Model O Output Options Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 182

24 Cautions for selecting Warning Duty cycle ofjw B (BalScrew Type) is within 30% ED.Duty cycle is a ratio ofoperating time per30 min on the basis of30 min interval. JW B (BalScrew Type)does nothave a self-locking device,therefore,a brake m echanism is required. Activating torque forthe drive unitshould be maintained at200% above the required torque. A low able inputrotation speed oflinearpowerjack is 1800 r/min,how ever,w hen inputting a speed exceeding the maximum inputrotation speed atthe basic capacity,check the screw shaftspeed (elevation speed)and a low able load related graphs on page 125. Selecta stroke forthe jack with an extra margin with respectto the used stroke. Rotating force is generated on the screw shaft(travelnutin the case oftravelnuttype)with thrust,therefore,rotation prevention is required.screw rotation torque atthe basic capacity is described in the standard specification list.w hen operating with the end unconnected,and pu ling the rope with a sheave insta led,use the rotation prevention type. However,the rotation prevention type cannotbe m anufactured forthe travelnuttype,therefore,provide a rotation prevention m echanism on the device. W hen installing a sprocket,gear,or beltto the inputor outputshaft,confirm thatany overhang load applied to the shaft decreases to the a low able OHL orless. O.H.L.Overhang load N {Of} T Inputtorque Nm {Ofm} f C oefficient-powertransm ission elem ent Lf C oefficient-load operating position R Sprocket,G ear,v pu ley or Pitch diam eter m Allowable O.H.L Precautions for installation Som e screw covers ofjacks are made ofhard vinylchloride pipe.do notliftjack and transportwith this pipe,which may result in dropping. JW B (BalScrew Type)rotates by selfweightofthe screw shaftortravelnut,therefore,retractits stroke to the minimum and provide a rotation prevention forinsta lation. Take jack coasting am ountinto consideration to setthe stroke adjusting limitsw itch. Precautions for use Q :ShaftLength :Loaded Position Coefficient Power Transmission Element (f) Sprocket Gear V-belt Flat belt Coefficient (Lf) Load Position Do notperform m anualoperation from the inputshaftwith load applied.the inputshaftis rotated by the load,which is dangerous. W hen JW B (Ba lscrew Type)is used in the verticaldirection,the jack may be reversed by the load because ofits exce lent efficiency.neverperform m anualoperation. Do notuse m echanicalstops underany circum stances. Operating Environm entforjack is as fo low s. Operating partand reducerunitare factory greased.therefore,use jack as delivered. Forlubrication grease,lubrication cycle and lubrication am ountto the screw shaftand reducerunit,referto page 223. Inspectreg ularly for generalbacklash and screw unitcondition.jack life and rep lacem enttim ing are determ ined by the fo lowing: M etalparticles due to wearon the screw surface are visible. Replace gearw hen its inputshaftexceeds 30 rpm with backlash (rattle betw een inputshaftand worm w heel)ath speed,or exceeds 60 rpm atl speed. In eithercase,ifitis used atthe replacem enttiming,this may cause rotation failure ofscrew shaftand inputshaft,and further sudden drop oftravelnut. 183

Linipower Jack JWH. JWM Technical Notes. Model Comparison Table Drawings Reference Table for Standard Use Dimensions Precautions

Linipower Jack JWH. JWM Technical Notes. Model Comparison Table Drawings Reference Table for Standard Use Dimensions Precautions JWH Model Comparison Table Drawings Reference Table for Standard Use Dimensions Precautions Inquiry Form Product Information Installation Precautions Options JWH JWB JWM Technical Notes 184 Drawings JWH