Gearhead Replacements - Replacement for GTR90

The Daedal GTR90 precision gearheads are obsolete and no longer available. For replacements, the Stealth Gen II RS90 servo class gearbox is a very close replacement.

Performance comparison:

Dimensional comparison:

GTR Ratios were 4, 5, 8, 10, 16, 20, 25, 32, 40, 64, 100.
RS standard ratios are 5, 10, 15, 20, 25, 30, 40, 50, 100.
RS with 8:1 and 64:1 ratios are available as custom. Other ratios can be investigated as custom.

Dimensional comparison presumes a standard GTN S7 output shaft option.
Custom RS90 gearboxes with lower backlash for high-accuracy applications are available.
Custom RS90 gearboxes with shorter output shaft length for drop-in replacement are available.

Note that the Stealth gearheads and mounting kits are purchased as separate items:

RS90-010-L2.....Inline PS90 Stealth Gen II gearhead, 10:1 ratio low backlash
MU90-005.........Mounting kit

The MU90-005 is the mounting kit for the BE34 motor. When ordered together in the same order as consecutive line items, the mounting kit will be attached to the gearhead, and the bushing inserted inside the pinion. Hardware to fit the motor to the adapter is also provided. For all other mounting kit part numbers, see the mounting kit search tool on parkermotion.com

The above is summarized based on catalog specifications. However, application requirements may be different; the RX90 Stealth GenII gearhead could also be considered for lower-accuracy applications. Please contact your local Parker ATC to review machine requirements or for gearhead sizing assistance.

For torque and sideload/axial load capacity, see catalog pages.

As a reference for Daedal Precision Gearhead catalog specs:
Daedal Precision Gearheads