Description
Un-A-Lok Liner Bushings
Un-A-Lok Liners are similar to HL head liners, except that they incorporate a sturdy locking tab that eliminates the need for a Lockscrew.UL Liners are permanent bushings used to hold SF renewable drill bushings. Although slightly more expensive than a head liner plus a Lockscrew, installation time is dramatically reduced.
Application Information
Un-A-Lok Liners are functionally similar to Head Liner Bushings, except that they incorporate a sturdy locking tab that eliminates the need for a Lockscrew, reducing installation time dramatically.
ID Tolerance
Standard Liner ID Tolerance:
- 3/16 to 5/16″ +0.0001/+0.0004
- 1/2″ +0.0002/+0.0005
- 3/4″ +0.0003/+0.0006
- 1″ +0.0004/+0.0007
OD Tolerance
Standard OD Tolerance:
- 5/16″ +0.0016/+0.0013
- 1/2″ +0.0017/+0.0014
- 3/4 to 1″ +0.0018/+0.0015
- 1-3/8″ +0.0022/+0.0018
Unground OD Tolerance:
- 5/16″ +0.015/+0.010
- 1/2 to 2-1/4″ +0.020/+0.015
Material
| Material | Heat Treat | Finish | DFARS | RoHS |
| 1144 Stressproof Steel | Heat treated to achieve Rc 62-64 ID hardness | – |
Parts Specification
| ID (Inch) | OD (Inch) | Length (Inch) | E (Inch) | F Diameter (Inch) | G (Inch) |
| 5/16″ | 1/2″ | 3/4″ | 3/8″ | 9/16″ | 3/32″ |
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