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Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
If you pulled a bearing off general industrial equipment at random, there’s a good chance
Availability:
2 in stock
Single-row barrel roller bearing, 75 x 160 x 37 mm, 1:12 tapered bore, open both faces, CN internal clearance. Radial load, self-aligning. 1 Pc.
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$167.48
2 in stock
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| MFR / Brand | FAG |
|---|---|
| MPN | 20315K |
| Model | 20315 K |
| Bearing Type | Spherical Roller Bearing, Open |
| ID | 75 mm |
| OD | 160 mm |
| Width | 37 mm |
| Material | Bearing Steel |
|---|---|
| Series | 20300 |
| Bore | Taper Bore |
| Base Number | 20315 |
| Industry Terms | Barrel roller bearing, tonneau roller bearing, single row self-aligning roller bearing, taper bore roller bearing, DIN 635-1 barrel roller |
| Common Misspellings | 20315-KM, 2031 5K, 20135K, 23015K, FAG 20315 KM, barrell roller bearing, tonneu roller bearing |
| Application Types | Fans and blowers, gearboxes, conveyor pulleys, rolling mill auxiliaries, misaligning shaft installations |
| Bore Shaft Size | 75 mm (2.953 in), tapered 1:12 |
| Mpn Variants | 20315K, 20315-K, 20315 K, 20315.K |
| Compatible With Replaces | Adapter sleeve H315 (1:12 taper, 65 mm shaft seat, supplied with KM locknut and MB lock washer) for mounting on a plain cylindrical shaft |
| Rolling Elements | Roller |
| Number Of Rows | 1 |
| Bore Type | Tapered |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.30.00 |
| Part Number | 20315K |
A single-row barrel roller bearing with a tapered bore, 75 mm bore × 160 mm outside diameter × 37 mm width. One row of barrel-shaped rollers runs between a cylindrical inner raceway and a spherical outer raceway, so the inner ring and roller set swivel within the outer ring. The bearing accommodates static misalignment and running shaft deflection, and carries radial load.
The barrel roller profile puts one row of long, convex rollers on a spherical outer raceway. That geometry buys a high radial rating and generous self-alignment in a section narrower than a double-row spherical roller of the same bore, and it carries load radially. The 1:12 tapered bore gives a variable interference fit: how far the ring is driven up the taper sets the final mounted clearance, so a single part covers a range of shaft fits.
Sale unit 1 Pc. Bearing only. Supplied without adapter sleeve H315 and without locknut or lock washer.
The tapered bore seats either directly on a 1:12 tapered shaft journal or on an adapter sleeve fitted to a plain cylindrical shaft. The matching sleeve is an H315, which takes a 65 mm shaft and is supplied by its maker with a KM locknut and MB lock washer. Mounted clearance is set by drive-up distance on the taper, so the CN figure above is the as-supplied value measured before mounting.
The ISO base number is 20315. A cylindrical-bore 20315 has the same 75 × 160 × 37 mm outline and is a related size; its bore is a different fit. A 20315 carrying a cage suffix such as MB or a clearance suffix such as C3 is likewise a related size, since cage material governs the speed and temperature rating and the clearance class governs mounted preload.
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