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J-Series Hydraulic Motors


J-Series hydraulic motors are manufactured for smaller form-factor or limited space applications, although in a small package, J-series hydraulic motors provide a lot of power. Our J-Series motors are able to handle up to 5 KW (6.5 HP) of power. This series is only 61mm (2.4") in diameter and 104mm - 130mm (4.1" to 5.1") in length. The special seals and shaft supplied in these hydraulic motors make them capable of handling a case pressure of up to 76 bar (1100 PSI) return line pressure without a case drain line. In circumstances where there is a case drain line, the maximum/ peak allowable return line pressure is 220 bar (3190 PSI). Our J-Series motors have the benefits of being high-efficiency motors with a long-term leaf-free working life all within a flexibly designed powerful and compact package. Common applications for these motors include; agricultural equipment, car wash sprayers and brushes, marine bow thrusters, food processing equipment, railroad equipment, machine tools, conveyor systems, snow blowers, sweeper, polishers, turf reel drives, lumber mill machinery, paint strippers, and more! These hydraulic motors interchange with popular brands such as; Charlynn, White, Ross, Parker, TRW, Danfoss, and Young Power Tech. We utilize other manufactures part numbering systems for ease of interchange purposes. For additional information or to get a quote on our J-Series hydraulic motors contact our customer service team and we will be happy to assist you.

Note - The maximum pressure at the motors inlet port is 220 Bar (3190 PSI) without regard to ∆ bar [∆ PSI] and/ or backpressure ratings or a combination thereof.
Pressure - The true ∆ bar (∆ PSI) difference between the inlet port and outlet port. See individual shafts for maximum torque recommendation. Splined shafts are recommended for those applications subject to frequent reversals.
Continuous Rating - The J-Series hydraulic motor can be run continuously at the ratings in the chart below.
Intermittent Operation - 10% of Every Minute.
Peak Operation - 1% of Every Minute.
Recommended Fluids - With J-Series motors it is recommended to use premium quality, anti-wear type hydraulic oil with a viscosity no less than 70 SUS at operating temperature.
Recommended System Operating Temperature - minus 34°C up to plus 81°C (-30°F - +180°F).
Recommended Filtration - Per ISO Cleanliness Code 4406, Level 20/18/13.
Specification Data Chart:
Displ. cm3/r (in3/r) 8,2 (0.50) 12,9 (0.79) 19,8 (1.21) 31,6 (1.93) 50,0 (3.00)
Max. Speed (RPM) @ Continous Flow 1992 1575 1043 650 393
Flow I/min (GPM) Continous 17 (4.5) 21 (5.5) 21 (5.5) 21 (5.5) 21 (5.5)
Flow I/min (GPM) Intermittent 21 (5.5) 25 (6.5) 25 (6.5) 25 (6.5) 25 (6.5)
Torque Nm (lb-in) Continous 16 (141) 25 (225) 38 (333) 50 (446) 62 (549)
Torque Nm (lb-in) Intermittent 19 (164) 30 (263) 46 (405) 62 (546) 84 (743)
Torque Nm (lb-in) Peak 22 (193) 36 (321) 48 (425) 83 (733) 86 (765)
Pressure ∆ Bar (∆ PSI) Continous 140 (2030) 140 (2030) 140 (2030) 121 (1750) 97 (1400)
Pressure ∆ Bar (∆ PSI) Intermittent 165 (2400) 165 (2400) 165 (2400) 150 (2175) 140 (2030)
Pressure ∆ Bar (∆ PSI) Peak 220 (3290) 220 (3290) 220 (3290) 190 (2756) 150 (2175)
Weight kG (LBS) 2 (4.4) 2,1 (4.6) 2,2 (4.8) 2,3 (5.0) 2,4 (5.4)

J-Series hydraulic motors run with high efficiency in all areas designated with a number for torque and speed. To get the best life out of your motor select a motor to run with a torque and speed range that is in the lightly shaded areas on the below charts. The performance data is typical at 120 SUS, actual data may vary slightly from motor to motor in production.







The below dimensional drawings show everything from the ports, shafts, and flange shaft assemblies.
J-Series Port Dimensions:
Note: Port A Pressurized = CW, Port B Pressurized = CCW




J-Series Shaft Dimensions:


J-Series Shaft & Flange Kit Dimensions:



J-Series Hydraulic Motor Product Numbers

End Port Sizes:
Displ. cm^3/r (in^3/r)/ Product Number
Mounting
Shaft
Port Size
8,2 (0.50)
12,9 (0.79)
19,8 (1.21)
31,6 (1.93)
50,0 (1.93)
1/4-28 UNF 2B 5/8" Straight 9/16-18 UNF 2B O-ring (2) 129-0291 129-0292 129-0293 129-0294 129-0458
1/4-28 UNF 2B 11/16" Straight 9/16-18 UNF 2B O-ring (2) 129-0295 129-0296 129-0297 129-0298 129-0459
1/4-28 UNF 2B Splined - Metric 9/16-18 UNF 2B O-ring (2) 129-0299 129-0300 129-0301 129-0302 129-0460
1/4-28 UNF 2B 3/4" Tapered 9/16-18 UNF 2B O-ring (2) 129-0480 - - - -
M6 X 1-6H 16mm Straight M14X1,5 - 6H O-Ring (2) 129-0303 129-0304 129-0305 129-0306 129-0461
M6 X 1-6H 18mm Straight M14X1,5 - 6H O-Ring (2) 129-0307 129-0308 129-0309 129-0310 129-0462
M6 X 1-6H Splined - Metric M14X1,5 - 6H O-Ring (2) 129-0311 129-0312 129-0313 129-0314 129-0463
M6 X 1-6H 16mm Straight G 1/4 (BSP) (2) 129-0315 129-0316 129-0317 129-0318 129-0464
M6 X 1-6H 18mm Straight G 1/4 (BSP) (2) 129-0319 129-0320 129-0321 129-0322 129-0465
M6 X 1-6H Splined - Metric G 1/4 (BSP) (2) 129-0323 129-0324 129-0325 129-0326 129-0466
M6 X 1-6H 16mm Straight G 1/4 (BSP) (2)* 129-0327 129-0328 129-0329 129-0330 129-0467
M6 X 1-6H 18mm Straight G 1/4 (BSP) (2)* 129-0331 129-0332 129-0333 129-0334 129-0468
M6 X 1-6H Splined - Metric G 1/4 (BSP) (2)* 129-0335 129-0336 129-0337 129-0338 129-0469
*Note: The Same Casting Used For Side Ports is Required for G 3/8(BSP) End Ports
Side Port Sizes:
Displ. cm^3/r (in^3/r)/ Product Number
Mounting
Shaft
Port Size
8,2 (0.50)
12,9 (0.79)
19,8 (1.21)
31,6 (1.93)
50,0 (1.93)
1/4-28 UNF 2B 5/8" Straight 9/16-18 UNF 2B O-Ring (2) 129-0339 129-0340 129-0341 129-0342 129-0470
1/4-28 UNF 2B 11/16" Straight 9/16-18 UNF 2B O-Ring (2) 129-0343 129-0344 129-0345 129-0346 129-0471
1/4-28 UNF 2B Splined - Metric 9/16-18 UNF 2B O-Ring (2) 129-0347 129-0348 129-0349 129-0350 129-0472
1/4-28 UNF 2B 3/4" Tapered 9/16-18 UNF 2B O-Ring (2) 129-0481 - - - -
M6 X 1 - 6H 16mm Straight M14X1,5 - 6H O-Ring (2) 129-0351 129-0352 129-0353 129-0354 129-0473
M6 X 1 - 6H 18mm Straight M14X1,5 - 6H O-Ring (2) 129-0355 129-0356 129-0357 129-0358 129-0474
M6 X 1 - 6H Splined - Metric M14X1,5 - 6H O-Ring (2) 129-0359 129-0360 129-0361 129-0362 129-0475
M6 X 1 - 6H 16mm Straight G1/4 (BSP) (2) 129-0363 129-0364 129-0365 129-0366 129-0476
M6 X 1 - 6H 18mm Straight G1/4 (BSP) (2) 129-0367 129-0368 129-0369 129-0370 129-0477
M6 X 1 - 6H Splined - Metric G1/4 (BSP) (2) 129-0371 129-0372 129-0373 129-0374 129-0403
M6 X 1 - 6H 16mm Straight G3/8 (BSP) (2) 129-0375 129-0376 129-0377 129-0378 129-0478
M6 X 1 - 6H 18mm Straight G3/8 (BSP) (2) 129-0379 129-0380 129-0381 129-0382 129-0479
  • Two Bolt Mounting Flange Kit (for 3/8" Mounting Bolts) - Kit # 60552 (Includes 5 Screws - 1/4-28 UNF-2B)
  • Two Bolt Mounting Flange Kit (for M8 Mounting Bolts) - Kit # 60553 (Includes 5 Screws - M6 X 1-6H)
Note: These part#s are a common interchange for our hydraulic motor, actual part # will be different.


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