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Torque

Starting torque and running torque are extremely important in applications such as gyro gimbals, low power consumption motors and precision positioning devices. In such applications the total system should be evaluated in the design phase for torque input versus torque reflected by the various driven components. In many cases, bearing design and manufacture can be modified to reduce torque.

NHBB
Basic Size
Test Load
(Thrust)
grams
Maximum Starting Torque
milligram – millimeters
Radial Play
Tight Fit
.0001" –.0003"
Normal Fit
.0002" –.0005"
Loose Fit
.0005" –.0008"
SSRI-2 75 1,800 1,500 1,400
SSRI-2 1/2 75 1,800 1,500 1,400
SSRI-3 75 1,800 1,500 1,400
SSRI-4 75 1,800 1,500 1,400
SSRI-5 75 1,800 1,500 1,400
SSRI-418 75 1,800 1,500 1,400
SSRI-518 75 1,800 1,500 1,400
SSRI-618 75 2,000 1,600 1,500
SSR-2 400 5,000 4,500 4,200
SSR-2A 400 5,000 4,500 4,200
SSRI-5532 75 1,800 1,500 1,400
SSRI-5632 75 1,800 1,500 1,400
SSRI-6632 75 2,000 1,600 1,500
SSR-3 400 6,500 5,500 5,000
SSRI-614 75 1,800 1,500 1,400
SSRI-814 400 6,000 5,200 4,800
SSR-4 400 7,000 6,500 5,500
SSRI-1214 400 8,000 7,000 6,500
SSRI-1438 400 11,000 9,500 9,000