About Durometer Hardness Scales
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Threaded Bumpers
Mount these bumpers on a threaded stud. All are reinforced with a steel core 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. All of these bumpers can be used outdoors.
Bumpers with a medium and medium-soft rating offer a balance of cushioning and impact resistance. The softer the bumper, the more it cushions.
Bumpers with an extra-hard, hard, and medium-hard rating withstand high levels of impact. The harder the bumper, the more impact it withstands.
Neoprene bumpers have good abrasion resistance.
Polyurethane bumpers have better abrasion resistance than neoprene bumpers. They won't become brittle and crack when exposed to ozone.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||||||
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Size | Dp. | OD | Ht. | Temp. Range, °F | For Use Outdoors | Hardness Rating | Hardness | Nonmarking | Color | Each | |
Neoprene Rubber with Steel Core | |||||||||||
1 1/4"-12 | 1 1/4" | 3" | 2 3/4" | -40° to 200° | Yes | Hard | Durometer 75A | No | Black | 00000000 | 000000 |
1 1/4"-12 | 1 1/4" | 3" | 2 3/4" | -40° to 200° | Yes | Medium Soft | Durometer 40A | No | Black | 0000000 | 00000 |
Polyurethane Rubber with Steel Core | |||||||||||
1 1/4"-12 | 1 1/4" | 3" | 2 3/4" | -40° to 200° | Yes | Hard | Durometer 85A | No | Red | 0000000 | 00000 |