User Manual
Performance Specifications
1. All torque ratings are based upon 3,000 RPM nominal input speed, and 20,000 hours minimum service life.
2. E-STOP torque rating is limited to 1,000 occurrences.
3. Torsional Stiffness rating varies by type and ratio. Specified rating based on Metric, 5:1 ratio.
4. Efficiency rated at 3,000 RPM input speed, at Nominal Rated Torque.
Design Features
• Single-piece construction utilized throughout
• IP65 sealed with Viton® seals at each joint
• High torque design with optimized gear geometry
• Advanced materials and heat treatments
• High torsional stiffness design
• Mounting in any direction
• Captive, bearing supported input pinion
• Simplified quick installation
• NEMA and Metric configurations standard
023PRX (NEMA) / 060PRX (METRIC) 034PRX (NEMA) / 090PRX (METRIC)
Gearbox Weight (lbs) 1 stage 2.8 lbs / 2 stage 3.8 lbs 1 stage 9.1 lbs / 2 stage 12.7 lbs
Torsional Stiffness (3) 20 in-lbs/arc-min 80 in-lbs/arc-min
Precision Planetary Gearhead
1 STAGE
2 STAGE
TNOM (1) TMAX ACCEL TE-STOP (2) TNOM (1) TMAX ACCEL TE-STOP (2)
Ratio In-lbs (Nm) In-lbs (Nm) In-lbs (Nm) In-lbs (Nm) In-lbs (Nm) In-lbs (Nm)
4:1 420 (48) 530 (60) 1069 (121) 1487 (168) 1874 (212) 3548 (401)
5:1 360 (41) 455 (51) 1043 (118) 1328 (150) 1674 (189) 3481 (393)
7:1 250 (28) 315 (36) 964 (109) 895 (101) 1128 (127) 2954 (334)
10:1 165 (19) 210 (24) 720 (81) 580 (66) 732 (83) 2564 (290)
16:1 420 (48) 530 (60) 1069 (121) 1487 (168) 1874 (212) 3548 (401)
20:1 420 (48) 530 (60) 1069 (121) 1487 (168) 1874 (212) 3548 (401)
25:1 360 (41) 455 (51) 1043 (118) 1328 (150) 1674 (189) 3481 (393)
28:1 420 (48) 530 (60) 1069 (121) 1487 (168) 1874 (212) 3548 (401)
35:1 360 (41) 455 (51) 1043 (118) 1328 (150) 1674 (189) 3481 (393)
40:1 420 (48) 530 (60) 1069 (121) 1487 (168) 1874 (212) 3548 (401)
50:1 360 (41) 455 (51) 1043 (118) 1328 (150) 1674 (189) 3481 (393)
70:1 286 (32) 360 (41) 964 (109) 1029 (116) 1297 (146) 2954 (334)
100:1 192 (22) 241 (27) 720 (81) 674 (76) 849 (96) 2564 (290)
Input Speed 6500 RPM Maximum
Backlash (arc-min) 4 (1 stage), 6 (2 stage)
IP Rating IP65
Service Life >20,000 HOURS
Efficiency (4) 1 stage >95% 2 stage >90%
Operating Temperature -40°F to +250°F
Shaft Loads See Tables on Page 12
New Product Guide • Fall 2008