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Ball Bearings
 |
Open |
 |
Shielded |
 |
Sealed |
Smoother than smooth—the balls inside these bearings roll nearly friction-free. You’ll often find them on rapidly rotating parts, from the whirring chuck on a power drill to the spinning shaft on an electric motor.
Open—With no rubber seal to block airflow, these bearings dissipate heat quickly, extending the life of the lubricant and reducing friction over time.
Shielded—The balls are covered just enough to keep out large particles while allowing air to pass through and dissipate heat.
Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.
Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.
Temp. Range, ° F | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | For Housing ID | Wd. | ABEC Rating | Dynamic Radial Load Cap., lb. | Max. Rotation Speed, rpm | Min. | Max. | Inner Ring Type | Bearing Trade No. | Each | |||
Open | |||||||||||||
Steel | |||||||||||||
| 5/16" | 29/32" | 5/16" | Not Rated | 690 | 5,000 | -20 | 250 | Standard | 1605 | 2780T14 | 000000 | ||
| 3/8" | 29/32" | 5/16" | Not Rated | 690 | 5,000 | -20 | 250 | Standard | 1606 | 2780T15 | 00000 | ||
| 7/16" | 29/32" | 5/16" | Not Rated | 690 | 5,000 | -20 | 250 | Standard | 1607 | 2780T16 | 00000 | ||
Shielded | |||||||||||||
Steel | |||||||||||||
| 5/16" | 29/32" | 5/16" | Not Rated | 350 | 2,500 | -20 | 250 | Standard | 3005-2Z | 6384K55 | 00000 | ||
| 5/16" | 29/32" | 5/16" | Not Rated | 690 | 5,000 | -20 | 250 | Standard | 1605-2Z | 2780T34 | 00000 | ||
| 3/8" | 29/32" | 5/16" | Not Rated | 350 | 2,500 | -20 | 250 | Standard | 3006-2Z | 6384K56 | 00000 | ||
| 3/8" | 29/32" | 5/16" | Not Rated | 690 | 5,000 | -20 | 250 | Standard | 1606-2Z | 2780T35 | 00000 | ||
| 7/16" | 29/32" | 5/16" | Not Rated | 350 | 2,500 | -20 | 250 | Standard | 3007-2Z | 6384K57 | 00000 | ||
| 7/16" | 29/32" | 5/16" | Not Rated | 690 | 5,000 | -20 | 250 | Standard | 1607-2Z | 2780T36 | 00000 | ||
Sealed | |||||||||||||
Steel | |||||||||||||
| 5/16" | 29/32" | 5/16" | Not Rated | 350 | 2,500 | -20 | 250 | Standard | 3005-2RS | 6384K22 | 00000 | ||
| 5/16" | 29/32" | 5/16" | Not Rated | 690 | 5,000 | -20 | 250 | Standard | 1605-2RS | 2780T54 | 00000 | ||
| 3/8" | 29/32" | 5/16" | Not Rated | 350 | 2,500 | -20 | 250 | Standard | 3006-2RS | 6384K44 | 00000 | ||
| 3/8" | 29/32" | 5/16" | Not Rated | 690 | 5,000 | -20 | 250 | Standard | 1606-2RS | 2780T55 | 00000 | ||
| 7/16" | 29/32" | 5/16" | Not Rated | 350 | 2,500 | -20 | 250 | Standard | 3007-2RS | 6384K46 | 00000 | ||
| 7/16" | 29/32" | 5/16" | Not Rated | 690 | 5,000 | -20 | 250 | Standard | 1607-2RS | 2780T56 | 00000 | ||
Flanged Ball Bearings
 |
Sealed |
Install these bearings inside a housing and they won't budge. The flange presses against the housing wall, so vibration and other sudden forces parallel to the shaft (thrust loads) won't knock them off-kilter.
Sealed—The best choice for dirty environments. A barrier seals out dust so it won't gunk up or wear down the balls. However, these bearings retain the most heat since air can't flow through.
Steel—Strong and wear resistant. However, these bearings are best for dry environments since moisture will cause them to rust.
Extended Inner Ring—Connect to mating parts without the need for a spacer. The inner ring juts out farther than the outer ring, so shaft collars and other objects won't touch the bearing's moving parts.
Flange | Temp. Range, ° F | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Shaft Dia. | For Housing ID | Wd. | OD | Thk. | ABEC Rating | Dynamic Radial Load Cap., lb. | Max. Rotation Speed, rpm | Min. | Max. | Inner Ring Type | Each | |||
Sealed | ||||||||||||||
Steel | ||||||||||||||
| 3/8" | 29/32" | 11/32" | 1" | 0.06" | Not Rated | 350 | 2,500 | -20 | 250 | Extended | 6384K346 | 000000 | ||
