For Shaft Type For Shaft Type |
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![]() | Round with Support Rail |
Linear Bearing Component Linear Bearing Component |
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![]() | Bearing |
Maximum Temperature Maximum Temperature |
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Bearing Type Bearing Type |
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![]() | Ball |
For Shaft Material For Shaft Material |
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Dynamic Load Capacity Dynamic Load Capacity |
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Static Load Capacity Static Load Capacity |
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Ball Material Ball Material |
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Alignment Style Alignment Style |
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Bearing Material Bearing Material |
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For Minimum Stainless Steel Shaft Hardness For Minimum StainlessSteel Shaft Hardness |
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For Minimum Steel Shaft Hardness For Minimum SteelShaft Hardness |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Retaining Ring Groove End-to-End Length Retaining Ring GrooveEnd-to-End Length |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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With Retaining Ring Grooves With Retaining Ring Grooves |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Linear Bearings
More
High-Temperature Linear Ball Bearings for Support Rail Shafts

The choice for low-friction motion in high-temperature environments. Mount these bearings on a support rail shaft for applications requiring maximum rigidity. They have a fixed-alignment design for applications where shaft misalignment is unlikely. To install, slide bearings into a housing (not included) and secure in place with two retaining rings (sold separately).
For technical drawings and 3-D models, click on a part number.
Fixed Alignment
Bearings | External Retaining Rings | ||||||||||
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For Shaft Dia. | Overall Lg. | Wd. | For Housing ID | Retaining Ring Groove End-to-End Lg. | Dynamic Load Capacity, lbs. | Max. Temperature, ° F | For Shaft Material | Each | Each | ||
Steel Bearings | |||||||||||
1/2" | 1 1/4" | 5/16" | 0.8740" - 0.8760" | 0.97" | 60 | 500° | Stainless Steel, Steel | 0000000 | 000000 | 0000000 | 00000 |
3/4" | 1 5/8" | 7/16" | 1.2490" - 1.2510" | 1.17" | 140 | 500° | Stainless Steel, Steel | 0000000 | 00000 | 0000000 | 0000 |
1" | 2 1/4" | 9/16" | 1.5615" - 1.5635" | 1.76" | 240 | 500° | Stainless Steel, Steel | 0000000 | 000000 | 0000000 | 0000 |
Fixed Alignment–Metric
Bearings | |||||||||||||
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Load Capacity, lbs. | External Retaining Rings | ||||||||||||
For Shaft Dia., mm | Overall Lg., mm | Wd., mm | For Housing ID, mm | Retaining Ring Groove End-to-End Lg., mm | Dynamic | Static | Temperature Range, ° F | For Shaft Material | Each | Pkg. Qty. | Pkg. | ||
Steel Bearings | |||||||||||||
12 | 30 | 8 | 21.000 - 21.021 | 23 | 110 | 175 | -4° to 230° | Stainless Steel, Steel | 00000000 | 000000 | 25 | 000000000 | 00000 |
16 | 37 | 11 | 28.000 - 28.021 | 26.5 | 170 | 265 | -4° to 230° | Stainless Steel, Steel | 00000000 | 00000 | 1 | 0000000 | 000 |
20 | 42 | 11 | 32.000 - 32.025 | 30.5 | 195 | 305 | -4° to 230° | Stainless Steel, Steel | 00000000 | 00000 | 1 | 0000000 | 0000 |
25 | 59 | 12 | 40.000 - 40.025 | 41 | 220 | 350 | -4° to 230° | Stainless Steel, Steel | 00000000 | 00000 | 1 | 0000000 | 0000 |
30 | 64 | 15 | 45.000 - 45.025 | 44.5 | 350 | 615 | -4° to 230° | Stainless Steel, Steel | 00000000 | 00000 | 1 | 0000000 | 0000 |