The Danfoss / Eaton Char-Lynn J Series Spool Geroler delivers reliable performance for demanding applications such as agricultural augers harvesters seeders marine bow thrusters and food processing equipment. Designed for maximum efficiency this motor has a displacement of 0.79 cu in/rev and features a compact yet powerful design extended bearing life and increased shaft seal integrity.
Its 5 Bolt 1/4-28UNF mounting flange and 5/8 in. straight keyed shaft provide robust attachment while the 9/16-18 st. Thd. O-Ring side ports ensure secure fluid connections. Capable of withstanding a maximum case pressure of 1100 PSI this motor is built for durability.
Recommended operating fluid viscosity ranges between 100-200 SUS and it is vital to maintain a minimum of 70 SUS at operating temperatures. To enhance motor longevity a break-in period of one hour at 30% rated pressure is advised.
The motor's filtration system meets ISO Cleanliness Code level 18/13 ensuring optimum performance even in challenging environments. It supports a maximum operating temperature of 180 F and utilizes premium quality anti-wear hydraulic fluid for optimal functionality.
Compact yet powerful|Extended bearing life|Increased shaft seal
129-0018J Series Geroler Motor
0.79
5 Bolt 1/4-28UNF
5/8 in. Straight Keyed
9/16-18 St.Thd. O-Ring Side Ports
Compact yet powerful|Extended bearing life|Increased shaft seal
129-0019J Series Geroler Motor
1.21
5 Bolt 1/4-28UNF
5/8 in. Straight Keyed
9/16-18 St.Thd. O-Ring Side Ports
Compact yet powerful|Extended bearing life|Increased shaft seal
129-0020J Series Geroler Motor
1.93
5 Bolt 1/4-28UNF
5/8 in. Straight Keyed
9/16-18 St.Thd. O-Ring Side Ports
Compact yet powerful|Extended bearing life|Increased shaft seal
Product Questions & Answers (1)
Question by: Lance M on Aug 2, 2025, 9:52 PM
what's the fluid viscosity range this motor runs best at, and is there a hard minimum I shouldn't go below?
Answer by: Customer Support on Aug 4, 2025, 12:05 PM
Recommended viscosity falls between 100 and 200 SUS for normal operation. The hard floor is 70 SUS at actual operating temperature. Let it drop below that and you're asking for accelerated wear on internal components. Worth keeping an eye on if your system runs hot or if you're using a lighter fluid than usual.