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Angle Size
The magnitude of a vibration created by a universal joint operating angle is proportional to the size of the universal joint operating
angle. Spicer Engineers recommend true universal joint operating angles of 3 degrees or less.
Obtain the true universal joint operating angle, as explained above, and if it is greater than 3 degrees, compare it to this chart.
Driveshaft
RPM
5000
4500
4000
3500
3000
2500
2000
1500
The angles shown on this chart are the maximum universal joint operating angles recommended by Spicer Engineers and are di-
rectly related to the speed of the driveshaft. Any universal joint operating angle greater than 3 degrees will lower universal joint
life and may cause a vibration. Remember to check maximum safe driveshaft RPM by using the Spicer Safe Operating Speed Cal-
culator.
Installation Techniques
Maximum
Operating Angle
Parallel
3.2°
3.7°
4.2°
3.8°
5.0°
4.4°
5.8°
5.1°
7.0°
6.0°
8.7°
6.0°
11.5°
6.0°
Interaxle
Intersecting
-
-
-
-
3.8°
4.4°
4.8°
4.8°
4.8°
4.8°
12
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