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Threaded Urethane Round Bumpers
Rectangular Bumpers with Metal Plate
Urethane Die-Set Bumpers
Threaded Urethane Round Bumpers
Our threaded bumpers have a tough, solid core surrounded by a rubber exterior that withstands impact. They are often used to guard, align, and position parts on automated machinery. Plus they're threaded so they're easy to install and remove. Male thread bumpers and male thread hex shoulder bumpers have a rigid stud made of steel for fastening into any surface.
Medium-soft bumpers are about as hard as a pencil eraser. Hard bumpers are about as hard as a shoe heel.
Polyurethane bumpers are abrasion resistant and non-staining. For indoor and outdoor use. Temperature range is -65 degree to +200 degree F, unless noted Color is red.
Round Urethane bumpers with male and female threaded fasteners molded in a variety of sizes and durometers.
| P.P.C. Part Nos. |
Dia. (A) |
Height (B) |
Thread Size |
Thread Lg. (C) |
| Female Thread Bumpers |
| RDF1 |
3/4" |
5/8" |
10-24 |
1/4" |
| RDF2 |
3/4" |
5/8" |
10-32 |
1/4" |
| RDF3 |
3/4" |
5/8" |
1/4"-20 |
1/4" |
| RDF4 |
3/4" |
5/8" |
1/4"-28 |
1/4" |
| RDF5 |
3/4" |
5/8" |
5/16"-18 |
1/4" |
| RDF6 |
3/4" |
5/8" |
5/16"-24 |
1/4" |
| RDF7 |
11/4" |
11/4" |
3/8"-16 |
1/2" |
| RDF8 |
11/4" |
11/4" |
3/8"-24 |
1/2" |
| RDF9 |
11/4" |
11/4" |
7/16"-20 |
1/2" |
| RDF10 |
11/4" |
11/4" |
1/2"-13 |
1/2" |
| RDF11 |
11/4" |
11/4" |
1/2"-20 |
1/2" |
| RDF12 |
11/4" |
11/4" |
5/8"-18 |
1/2" |
| RDF13 |
13/4" |
15/8" |
5/8"-11 |
5/8" |
| RDF14 |
13/4" |
15/8" |
5/8"-18 |
5/8" |
| RDF15 |
21/4" |
21/4" |
3/4"-10 |
1" |
| RDF16 |
21/4" |
21/4" |
3/4"-16 |
1" |
| RDF17 |
21/4" |
21/4" |
1"-8 |
1" |
| RDF18 |
3" |
23/4" |
1"-8 |
11/4" |
| RDF19 |
3" |
23/4" |
11/4"-12 |
11/4" |
| Male Thread Bumpers |
| RDM1 |
1-1/4" |
1-1/4" |
3/8"-16 |
5/8" |
| RDM2 |
1-1/4" |
1-1/4" |
3/8"-16 |
1" |
| RDM3 |
1-1/4" |
1-1/4" |
3/8"-16 |
1-1/4" |
| RDM4 |
1-1/4" |
1-1/4" |
1/2"-13 |
3/4" |
| RDM5 |
1-1/4" |
1-1/4" |
5/8"-18 |
1" |
| RDM6 |
1-1/2" |
13/16" |
3/8"-16 |
3/4"" |
| Inch Thread Bumpers with Hex shoulders |
| RDMHS1 | 3/4" | 5/8" | 10-24 | 1/2" |
| RDMHS2 | 3/4" | 5/8" | 10-24 | 1-1/4" |
| RDMHS3 | 3/4" | 5/8" | 10-32 | 1/2" |
| RDMHS4 | 3/4" | 5/8" | 10-32 | 1-1/4" |
| RDMHS5 | 3/4" | 5/8" | 1/4"-20 | 1/2" |
| RDMHS6 | 3/4" | 5/8" | 1/4-20 | 1-1/4" |
| RDMHS7 | 3/4" | 5/8" | 1/4-20 | 1/2" |
| RDMHS8 | 3/4" | 5/8" | 1/4"-20 | 1-1/4" |
| RDMHS9 | 3/4" | 5/8" | 5/16-18 | 1/2" |
| RDMHS10 | 3/4" | 5/8" | 5/16"-18 | 1-1/4" |
| RDMHS11 | 3/4" | 5/8" | 5/16"-24 | 1/2" |
| RDMHS12 | 3/4" | 5/8" | 5/16"-24 | 1-1/4" |
| METRIC Male Thread Bumpers |
| RDMM1 | 19 | 16 | M6 X 1.0 | 18 |
| RDMM2 | 19 | 16 | M8 X 1.25 | 18 |
| RDMM3 | 32 | 32 | M10 X 1.5 | 15 |
| RDMM4 | 32 | 32 | M10 X 1.5 | 30 |
| RDMM5 | 32 | 32 | M12 X 1.75 | 30 |
| RDMM6 | 32 | 32 | M16 X 2.0 | 15 |
| RDMM7 | 32 | 32 | M16 X 2.0 | 30 |
| RDMM8 | 45 | 42 | M16 X 2.0 | 30 |
Rectangular Bumpers with Metal Plate
A 1/8" thick metal plate is bonded to the base of these bumpers for added reinforcement. They are often used to guard, align, and position parts. Bumpers have drilled unthreaded (through) holes to accommodate a mounting bolt (not included), unless noted. They're hard like a shoe heel. Bumpers with an aluminum base plate offer the best corrosion resistance.
Polyurethane bumpers have excellent abrasion resistance and are non staining. For indoor and outdoor use. Temperature range is -65 degree to +200 degree F. Durometer=80A, Color= Red.
Lg.
(A) |
Wd.
(B) |
Proj
(C) |
Mounting Holes
Ctr. - to Ctr.(D) |
Counterbore
Hole Dia. |
Hole Dia. |
| Bumpers with Steel Base Plate |
| 1 3/4" |
1" |
3/4" |
1" |
13/32" |
9/32" |
| 2 1/2" |
5/8" |
5/8" |
1 1/2" |
13/32" |
9/32" |
| 2 1/2" |
2" |
2" |
1 1/2" |
1/2" |
11/32" |
| 2 1/2" |
2" |
2" |
- |
- |
- |
| 4" |
2 1/2" |
2" |
- |
- |
- |
| 4" |
2 1/2" |
2" |
3 1/4" |
- |
5/16"-18 |
| Bumpers with Aluminum Base Plate |
| 1 1/2" |
1" |
3/4" |
3/4" |
13/32" |
9/32" |
| 1 3/4" |
1" |
1 3/4" |
1" |
13/32" |
9/32" |
| 3" |
1" |
1 3/4" |
1 3/4" |
9/16" |
13/32" |
| 3" |
1 1/2" |
1" |
2" |
1/2" |
11/32" |
| 4" |
1" |
3/4" |
1" |
13/32" |
9/32" |
URETHANE DIE - SET BUMPERS
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Manufactured using Die-Thane compounds to assure performance
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Stock Lengths are 4" in Length
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Longer Bumpers are available in 1" increments
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Stock Hardness is 90 Shore A (Red)
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Other Hardnesses are available
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Advantages of DIE-THANE Die Bumpers:
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Reduce snap through impact load
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Relieve strain on gibs
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Lower Noise Level
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Reduce Die Spring Failure
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Extend Die Spring life
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Extend Tool Life
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Function as Stripper Strings for the whole Die Set
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Die Storage Blocks
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| Part Number |
Diameter |
Length |
Load for 1/8" Deflection |
| USA-2040 |
2" |
4" |
320 Lbs |
| USA-3040 |
3" |
4" |
740 Lbs |
| USA-4040 |
4" |
4" |
1380 Lbs |
Other Sizes of Bumpers available :
| Part Number |
Diameter |
Length |
Bolt Size |
| USA-1010 |
1" |
1" |
1/4" - 20 X 1" L |
| USA-1212 |
1-1/4" |
1-1/4" |
1/4"- 20 X 1" L |
| USA-1515 |
1-1/2" |
1-1/2" |
3/8" - 16 x 1" L |
| USA-2020 |
2" |
2" |
1/2" - 13 x 1" L |
| USA-3030 |
3" |
3" |
1/2" - 13 x 1" L |
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