Mounted Ball Linear Bearing
for Support Rail Shafts, for 20 mm Diameter, 54 mm Long





Alignment Style | Self-Aligning |
Misalignment Capability | 1° |
Material | |
Bearing | Acetal |
Housing | 6061 Aluminum |
Ball | Stainless Steel |
For Shaft Diameter | 20 mm |
Overall | |
Length | 54 mm |
Width | 60 mm |
Height | 42 mm |
Center Height | 25 mm |
Center Height Tolerance | -0.02 mm to 0.02 mm |
Width | 9 mm |
With End Seals | Yes |
Load Capacity | |
Dynamic | 460 lb. |
Static | 590 lb. |
Temperature | |
Minimum | -4° F |
Maximum | 176° F |
For Shaft Material | Stainless Steel, Steel |
Mounting Holes | |
Number of | 4 |
Diameter | 8 mm |
Center-to-Center Length | 32 mm |
Center-to-Center Width | 45 mm |
Base Thickness | 5 mm |
Bearing Type | Ball |
For Minimum Shaft Hardness | |
Steel | Rockwell C50 |
Stainless Steel | Rockwell C50 |
For Shaft Type | Round with Support Rail |
Housing Type | Base Mount |
ID | 20.000 mm |
Insert Bearing Replaceable | Yes |
Linear Bearing Component | Bearing in Housing |
Lubrication | Required |
Country of Origin | Japan |
DFARS Compliance | Specialty Metals COTS-Exempt |
Export Control Classification Number (ECCN) | 1C999 |
REACH Compliance | REACH (EC 1907/2006) (01/23/2024, 240 SVHC) Compliant |
RoHS Compliance | RoHS 3 (2015/863/EU) Compliant |
Schedule B Number | 848320.0010 |
U.S.–Mexico–Canada Agreement (USMCA) Qualifying | No |
Mount these bearings on a support rail shaft for applications requiring maximum rigidity. End seals keep lubricant in and dirt out.
Self-Aligning—Self-aligning bearings compensate for shaft misalignment.
The information in this 3-D model is provided for reference only.

























