122 Models (Double clutches/brakes)

These are double-clutch/brake units unlike any other that combine two clutches (101-[ ]-15) with a brake (111-[ ]-12) in a compact form factor.They provide high-precision positioning and applied control of complex operations from a single unit. The hub is used as the input for two-stage speed-change/fixed position stopping/high-precision forward-reverse operation. The output shaft is braked when clutch current is shut off and the brake is energized in response.

122 Models


ModelSizeDynamic friction torque Td [N・m]Static friction torque Ts [N・m]Coil (at 20℃)Heat resistance classMax. rotation speed [min-1Rotating part moment of inertia J [kg・m2Total work performed until readjustment of the air gap ET [J]Armature pull-in time ta [s]Torque build-up time tp [s]Torque decaying time td [s]Mass [kg]
Voltage [V]Wattage [W]Current [A]Resistance [Ω]
122-06-20G0655.5DC24110.4652B30002.19×10-436×106C: 0.020/B: 0.015C: 0.041/B: 0.033C: 0.020/B: 0.0154
122-08-20G081011DC24150.6338B30006.55×10-460×106C: 0.023/B: 0.016C: 0.051/B: 0.042C: 0.030/B: 0.0256
122-10-20G102022DC24200.8329B30002.12×10-3130×106C: 0.025/B: 0.018C:0.063 / B:0.056C: 0.050/B: 0.0309
122-12-20G124045DC24251.0423B30006.35×10-3250×106C: 0.040/B: 0.027C: 0.115/B: 0.090C: 0.065/B: 0.05017
122-16-20G168090DC24351.4616B30001.99×10-2470×106C: 0.050/B: 0.035C: 0.160/B: 0.127C: 0.085/B: 0.05529
122-20-20G20160175DC24451.8813B25006.15×10-210×108C: 0.090/B: 0.065C: 0.250/B: 0.200C: 0.130/B: 0.07058

*The dynamic friction torque, Td, is measured at a relative speed of 100 min-1. Depending on the initial torque characteristics, break-in to condition the engaging surfaces may also be required.


SizeDimensions of part
SizeDimensions of shaft
Q1Q2S1S2U1U2V1V2X1X2W1, 2
062520113812.539.5M4×0.7, length: 83-M4×0.7, length: 43° to 120°60°4
08302514451647M4×0.7, length: 83-M4×0.7, length: 63° to 120°60°5
10403019552157M6×1, length: 114-M4×0.7, length: 84° to 90°45°5
12504024642767M6×1, length: 114-M4×0.7, length: 84° to 90°45°7
16605028753178M6×1, length: 116-M5×0.8, length: 86° to 60°30°7
208060389041.593.5M10×1.5, length: 174-M6×1, length: 124° to 90°45°10

*The input/output keyways are old JIS standard class 2 while the key is old JIS standard class 1. Note that the keyway dimensions of the unit hub part do not conform to JIS standards. Check them on the dimensions table above.

*When inserting pulleys or the like onto output shafts, use the supplied insertion set.

*The 122-20-20G base is a casting.