3" x 1-1/4" Hard Rubber Threaded Stem Caster (B1, Series 20)
3" hard rubber threaded-stem casters for chairs, dollies, racks, and equipment that mount with a threaded stem rather than a top plate. Non-marking hard rubber tread supports 220 lbs per wheel. Available as a Set of 4 in swivel or swivel-with-brake.
Key Features
- 3" hard rubber wheel - non-marking
- 220 lbs load capacity per caster
- 1/2" x UNC13 x 1" threaded stem (B1)
- Swivel and swivel-with-brake options
- Sold as a Set of 4
Applications
Stem-mount dollies, carts, racks, and shop equipment.
Technical Specifications
| Spec |
Value |
| Wheel Diameter |
3" |
| Tread Width |
1-1/4" |
| Load Capacity |
220 lbs / wheel |
| Threaded Stem |
1/2" x UNC13 x 1" (B1) |
| Axle Diameter |
3/8" |
| Hub Length |
1-9/16" |
| Overall Height |
4-1/4" |
| Wheel Material |
Hard Rubber (non-marking) |
| Series |
20 (Light / Medium Duty) |
Configurations
| Type |
Part No. |
| Set of 4 - 4 Swivel |
20-30S-B1-HR |
| Set of 4 - 4 Swivel w/ Brake |
20-30S-B1-HR-TB |
