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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:
4 in stock
Single-row barrel roller bearing, 90 mm bore x 160 mm OD x 30 mm wide. 1:12 tapered bore, machined brass cage, C3 clearance, radial load with self-alignment. 1 Pc.
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| MFR / Brand | FAG |
|---|---|
| MPN | 20218-K-MB-C3 |
| GTIN | 4012801286305 |
| Model | 20218K.MB.C3 |
| Bearing Type | Spherical Roller Bearing, Open |
| ID | 90 mm |
| OD | 160 mm |
| Width | 30 mm |
| Material | Bearing Steel |
|---|---|
| Series | 20200 |
| Lubricant | None |
| Base Number | 20218 |
| Industry Terms | barrel roller bearing, tapered bore barrel roller, oscillating bearing, self-aligning roller bearing |
| Bore Shaft Size | 90 mm (3.5433 in), tapered 1:12 |
| Mpn Variants | 20218K.MB.C3, 20218-K-MB-C3, 20218KMBC3, 20218K, 20218 K MB C3 |
| Compatible With Replaces | Adapter sleeve H218 (85 mm shaft seat) |
| Rolling Elements | Roller |
| Number Of Rows | 1 |
| Bore Type | Tapered |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.30.00 |
| Part Number | 20218-K-MB-C3 |
FAG 20218-K-MB-C3, a single-row barrel roller bearing. One row of barrel-shaped rollers runs on a spherical outer raceway, so the inner ring, roller set and cage swivel inside the outer ring. Boundary dimensions 90 mm bore × 160 mm outside diameter × 30 mm width. Tapered bore, 1:12.
Series 202 is the FAG single-row barrel roller line in ISO dimension series 20. Bore Code: 18, giving a 90 mm bore. Bore Type: K, tapered bore, taper 1:12. Cage Type: MB, machined brass, inner-ring guided. Internal Clearance: C3, radial internal clearance greater than normal.
The barrel roller carries radial load and self-aligns on its spherical outer raceway, which is why it suits oscillating and vibrating duty where the shaft flexes under load. Load is radial only. On a tapered bore the drive-up distance sets the final radial clearance, and the C3 starting clearance leaves room for that drive-up plus thermal growth.
Bore: 90 mm (3.5433 in). Outside Diameter: 160 mm (6.2992 in). Overall Width: 30 mm (1.1811 in). Number Of Rows: 1. Bore Type: tapered, 1:12. Cage Material: machined brass (MB). Internal Clearance: C3. GTIN: 4012801286305.
1 Pc. Bearing only. Supplied without adapter sleeve.
A tapered-bore barrel roller seats on an adapter sleeve when it goes onto a plain cylindrical shaft; the sleeve for a 20218K is an H218, whose shaft seat is 85 mm, one bore-code step below the bearing bore.
Alternate written forms of the same bearing: 20218K.MB.C3, 20218-K-MB-C3, 20218KMBC3, 20218K. The cylindrical-bore 20218MB is a related size with a different bore form. The 22218K is a double-row spherical roller bearing.
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