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Hollow Linear Motion Shafts with Material Certification
Keep a material certificate on hand for compliance and quality assurance needs. Certificates include a traceable lot number and material test report. These hollow shafts reduce system weight and allow you to run various media such as electrical wiring, compressed air tubing, coolants, or lubricants through the center. Use them with linear bearings to reduce friction in manual and automated systems, such as those found in packing, machine tool, and material handling operations. They're smooth, hard, and wear resistant. Both the interior and exterior are ground and polished to tight diameter and straightness tolerances.
These shafts are heat treated to relieve internal stresses, which can cause them to warp out of tolerance. All have chamfered ends to remove sharp edges and reduce damage to bearings, housings, and other components during installation.
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 | Dia. Tolerance | ID Tolerance | Straightness Tolerance | Surface Smoothness, microinch | ID Surface Smoothness (RMS), microinch | Edge Type | Hardness Rating | Hardness | Each | |
Inch—1026 Carbon Steel | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
1 1/4" Dia. (3/4" ID) | |||||||||||
| 12" | -0.005" to 0.005" | -0.001" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |
| 24" | -0.005" to 0.005" | -0.001" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |
| 36" | -0.005" to 0.005" | -0.001" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |
| 48" | -0.005" to 0.005" | -0.001" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |
1 1/2" Dia. (1" ID) | |||||||||||
| 12" | -0.005" to 0.005" | -0.001" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 00000 |
| 24" | -0.005" to 0.005" | -0.001" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |
| 36" | -0.005" to 0.005" | -0.001" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |
| 48" | -0.005" to 0.005" | -0.001" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |
2" Dia. (1 1/2" ID) | |||||||||||
| 12" | -0.005" to 0.005" | -0.002" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |
| 24" | -0.005" to 0.005" | -0.002" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |
| 36" | -0.005" to 0.005" | -0.002" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |
| 48" | -0.005" to 0.005" | -0.002" to 0" | 0" to 0.003" | 0.003" per ft. | 32 | 20 | Chamfered | Medium | Brinell 225 | 0000000 | 000000 |