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28JNB30K 139:1

Integrated Planetary Gearbox · Spur gear

Product Details

Order No.2850139
Outer Diameter28 mm
Reduction Ratio139:1
Absolute Reduction Ratio139.14:1
Number of Stages3
Rated Output Torque2.5 N·m
Max. Momentary Torque7.5 N·m
Efficiency73%
Backlash2°
Length40.7 mm
Weight102 g
Direction of RotationSame direction as motor
ERP Item Code28JNB30K-R139.14-S3
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Drawings & Photos

28JNB30K Product photo
Product photoclick to enlarge
28JNB30K Dimension drawing
Dimension drawingclick to enlarge
28JNB30K Assembly drawing
Assembly drawingclick to enlarge

General specifications and motor shaft pinion are model-level (shared by all ratios of this model). View Model Hub →

Other Ratios in This Model

3.7059:1 5.1818:1 13.73:1 19.20:1 26.85:1 34.96:1 50.89:1 71.16:1 99.51:1 139.14:1 188.61:1 263.73:1 368.76:1 515.63:1 720.99:1

Full ratio comparison (torque, efficiency, backlash, length, weight) is on the View Model Hub →