About Shafts
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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. Ceramic-coated aluminum shafts are good for harsh environments, preventing welding spatter, molten glass, and paint from sticking.
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: -0.0012" to -0.0004") | ||||||||
---|---|---|---|---|---|---|---|---|
6" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
9" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
15" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
18" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
24" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
36" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
48" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
3/8" Dia. (Tolerance: -0.0012" to -0.0004") | ||||||||
6" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
9" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
15" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
18" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
24" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
36" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
48" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
1/2" Dia. (Tolerance: -0.0012" to -0.0004") | ||||||||
6" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
9" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
15" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
18" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
24" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
36" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
48" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
3/4" Dia. (Tolerance: -0.0012" to -0.0004") | ||||||||
6" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
9" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
15" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
18" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
24" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
36" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
48" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
1" Dia. (Tolerance: -0.0012" to -0.0004") | ||||||||
6" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
9" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
15" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
18" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
24" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
36" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
48" | -0.03" to 0.03" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
1 1/2" Dia. (Tolerance: -0.0013" to -0.0005") | ||||||||
6" | -0.06" to 0.06" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
9" | -0.06" to 0.06" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.06" to 0.06" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
15" | -0.06" to 0.06" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
18" | -0.06" to 0.06" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
24" | -0.06" to 0.06" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
2" Dia. (Tolerance: -0.0015" to -0.0005") | ||||||||
6" | -0.06" to 0.06" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.06" to 0.06" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
15" | -0.06" to 0.06" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
24" | -0.06" to 0.06" | 0.001" per ft. | 12 | Chamfered | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
Support-Rail Shafts
These shafts include a support rail for a stable setup that eliminates bending and prevents linear bearings from rotating. Shafts have a smooth surface to reduce friction and wear on linear bearings—the lower the microinch value a shaft has, the smoother its finish and the less friction it will create. They are case-hardened to increase hardness and wear resistance on the surface of the shaft while allowing the center to remain soft for absorbing stresses caused by shifting loads. The edges are chamfered to remove sharp corners, reducing damage to bearings, housings, and other components during installation. All are turned, ground, and polished to tight diameter and straightness tolerances.
One-piece shafts reduce vibration and assembly time.
Ceramic-coated aluminum shafts are good for use in harsh environments; a 0.002" thick ceramic coating prevents weld spatter, molten glass, and paint from sticking to the shaft. They are lighter in weight than steel and stainless steel shafts. Because they have a soft core, they are not for use with linear ball bearings, which may dent the shaft.
For technical drawings and 3-D models, click on a part number.

Mounting Hole | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Lg. | Lg. Tolerance | Ctr. Ht. | O'all Wd. | End-to-Mount. Hole Lg. | Ctr.-to-Ctr. Lg. | Ctr.-to-Ctr. Wd. | Dia. | Mounting Fasteners Included | Surface Smoothness, microinch | Hardness Rating | Hardness | Each | |
Inch—Ceramic-Coated 6063 Aluminum (T6 Temper) | |||||||||||||
1/2" Dia. (Tolerance: -0.0012" to -0.0004") | |||||||||||||
6" | -0.03" to 0.03" | 1 1/8" | 1 1/2" | 1" | 4" | 1" | 5/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
9" | -0.03" to 0.03" | 1 1/8" | 1 1/2" | 2 1/2" | 4" | 1" | 5/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.03" to 0.03" | 1 1/8" | 1 1/2" | 2" | 4" | 1" | 5/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
18" | -0.03" to 0.03" | 1 1/8" | 1 1/2" | 1" | 4" | 1" | 5/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
24" | -0.03" to 0.03" | 1 1/8" | 1 1/2" | 2" | 4" | 1" | 5/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
3/4" Dia. (Tolerance: -0.0012" to -0.0004") | |||||||||||||
6" | -0.03" to 0.03" | 1 1/2" | 1 3/4" | 3" | 6" | 1 1/4" | 7/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
9" | -0.03" to 0.03" | 1 1/2" | 1 3/4" | 1 1/2" | 6" | 1 1/4" | 7/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
12" | -0.03" to 0.03" | 1 1/2" | 1 3/4" | 3" | 6" | 1 1/4" | 7/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
18" | -0.03" to 0.03" | 1 1/2" | 1 3/4" | 3" | 6" | 1 1/4" | 7/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
24" | -0.03" to 0.03" | 1 1/2" | 1 3/4" | 3" | 6" | 1 1/4" | 7/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
1" Dia. (Tolerance: -0.0012" to -0.0004") | |||||||||||||
6" | -0.03" to 0.03" | 1 3/4" | 2 1/8" | 3" | 6" | 1 1/2" | 9/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 00000 |
9" | -0.03" to 0.03" | 1 3/4" | 2 1/8" | 1 1/2" | 6" | 1 1/2" | 9/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
12" | -0.03" to 0.03" | 1 3/4" | 2 1/8" | 3" | 6" | 1 1/2" | 9/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
18" | -0.03" to 0.03" | 1 3/4" | 2 1/8" | 3" | 6" | 1 1/2" | 9/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |
24" | -0.03" to 0.03" | 1 3/4" | 2 1/8" | 3" | 6" | 1 1/2" | 9/32" | No | 12 | Ultra Hard | Rockwell C70 | 0000000 | 000000 |