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Drive pins can be installed on rotor flanges to either transfer rotational motion to FORJ rotors or to pin the rotors down so that
they do not rotate with the stator. Two pins are most
commonly used while one pin is acceptable. Be sure to hold the rotor while
installing the pins to avoid applying torque between rotor and stator. The slots or holes that pins engage in should always be slightly
larger than the pin diameter.
The following table lists all standard drive pins
available from stock. The material is stainless steel 303. Total length does not include
threaded portion. Our learning page on mounting instruction can be a helpful tool
if you are new to rotary devices such as fiber rotary joint.
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| STANDARD DRIVE PINS |
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 MODEL NUMBER |
DESCRIPTION |
| DP2-M1.6-21 |
M1.6-f2.0x21 mm (MJX and RFCX) |
| DP3-M2-34 |
M2-f3.0x34 mm (R series, MJP, MJ2, and PJ2) |
| DP3-M2-46 |
M2-f3.0x46 mm (R series, MJP, MJ2, and PJ2) |
| DP4-M4-70 |
M4-f4.0x70 mm (RJ2, MXn, MJn and JXn) |
| DP4-M4-120 |
M4-f4.0x120 mm (RJ2, MXn, MJn and JXn) |
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