About Shafts
More
Linear Motion Shafts

Smooth, hard, and wear resistant, these shafts work with linear bearings to reduce friction in manual and automated systems, such as those found in packing, machine tool, and material handling operations. All are turned, ground, and polished to tight diameter and straightness tolerances.
Aluminum shafts are a lightweight, corrosion-resistant option for use with linear sleeve bearings. Because they have a soft core, they shouldn’t be used with linear ball bearings, which may dent the shaft. Both anodized aluminum and ceramic-coated aluminum have an ultra-hard coating for wear resistance.
Surface smoothness—The lower the microinch value, the smoother the finish and the less friction and wear it will cause on the bearing.
For technical drawings and 3-D models, click on a part number.
Lg. | Lg. Tolerance | Straightness Tolerance | Surface Smoothness, microinch | Edge Type | Hardness Rating | Hardness | Each | |
1/4" Dia. (Tolerance: -0.001" to -0.0005") | ||||||||
---|---|---|---|---|---|---|---|---|
6" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
12" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
18" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
24" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
36" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
48" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
3/8" Dia. (Tolerance: -0.001" to -0.0005") | ||||||||
6" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
18" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
24" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
36" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
48" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
1/2" Dia. (Tolerance: -0.001" to -0.0005") | ||||||||
6" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
18" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
24" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
36" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
48" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
3/4" Dia. (Tolerance: -0.001" to -0.0005") | ||||||||
6" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
18" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
24" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
36" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
48" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
7/8" Dia. (Tolerance: -0.001" to -0.0005") | ||||||||
6" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
24" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
48" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
1" Dia. (Tolerance: -0.001" to -0.0005") | ||||||||
6" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
12" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
18" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
24" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
36" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
48" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
1 1/4" Dia. (Tolerance: -0.001" to -0.0005") | ||||||||
12" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
18" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
24" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
36" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
48" | -0.0625" to 0.0625" | 0.004" per ft. | 16 | Straight | Ultra Hard | Rockwell C70 | 0000000 | 000000 |