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About Durometer Hardness Scales
More
Threaded-Stud Bumpers
Twist these bumpers into a threaded hole. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces.
Bumpers with a hard and medium-hard rating withstand high levels of impact. The harder the bumper, the more impact it withstands.
Polyurethane bumpers have better abrasion resistance than SBR bumpers. They won't become brittle and crack when exposed to ozone.
For technical drawings and 3-D models, click on a part number.
Load-Rated Threaded-Stud Bumpers
Select these bumpers for applications that require specific load capacities. All are reinforced with a base plate for strength. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces. They're also good for starting and stopping motion on automated machines and conveyors. Twist these bumpers into a threaded hole.
Bumpers with a medium hardness rating offer a balance of cushioning and impact resistance.
Rubber bumpers are abrasion resistant. Those with a soft rating can be used outdoors.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Lg. | OD | Ht. | Max. Load, lbs. | Temp. Range, °F | For Use Outdoors | Hardness Rating | Nonmarking | Color | Stud Material | Pkg. Qty. | Pkg. | |
Style 4 | |||||||||||||
Rubber with Steel Base Plate | |||||||||||||
1/4"-20 | 1/2" | 1" | 5/8" | 18 | -10° to 150° | No | Medium | No | Black | Steel | 4 | 0000000 | 00000 |
Heavy Duty Unthreaded Bumpers
All of these bumpers are reinforced with an embedded washer or base plate for strength. Often used as feet, spacers, and vibration dampers, they absorb shock to prevent damage to equipment and surfaces. They're also good for starting and stopping motion on automated machines. Install them with screws. These bumpers are also known as recessed bumpers.
Bumpers with a hard and medium-hard rating withstand high levels of impact. The harder the bumper, the more impact it withstands.
Polyurethane bumpers have better abrasion resistance than SBR bumpers. They won't become brittle and crack when exposed to ozone, are nonmarking, and can be used outdoors.
For technical drawings and 3-D models, click on a part number.
| OD | Ht. | Mounting Surface Ht. | Counterbore Dia. | Mounting Hole Dia. | Temp. Range, °F | For Use Outdoors | Hardness Rating | Hardness | Nonmarking | Color | Pkg. Qty. | Pkg. | |
Polyurethane Rubber with Steel Embedded Washer | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 3/8" | 2 1/2" | 1 1/2" | 11/16" | 13/32" | -10° to 170° | Yes | Hard | Durometer 75A | Yes | Black | 1 | 0000000 | 000000 |
| 2 3/8" | 3 1/8" | 2 1/8" | 11/16" | 13/32" | -10° to 170° | Yes | Hard | Durometer 75A | Yes | Black | 1 | 0000000 | 00000 |
Fixture Keys
Sized to fit with precision in machine table T-slots, use these keys to locate fixtures and vises on your machine table. They mount to the underside of your fixture or vise with a socket head cap screw.
For technical drawings and 3-D models, click on a part number.