Gearmotors: What They Are and How to Size a Replacement
Many industrial loads need torque an electric motor can’t deliver on its own, at a
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Double-row spherical roller bearing, 50 mm bore x 90 mm OD x 23 mm wide, straight bore, C3 clearance, outer-ring lubrication groove and holes, self-aligning.
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| MFR / Brand | SNR |
|---|---|
| MPN | 22210EAB33J30 |
| GTIN | 3413520082321 |
| Model | 22210E A B33 J30 22210EJ W33 C3 |
| Bearing Type | Spherical Roller Bearing, Open |
| ID | 50 mm |
| OD | 90 mm |
| Width | 23 mm |
| Series | 22200 |
|---|---|
| Material | Bearing Steel |
| Base Number | 22210 |
| Industry Terms | Spherical roller bearing; self-aligning roller bearing; double row barrel roller bearing; SRB; Ultage; 222 series; W33 spherical roller; B33 spherical roller; J30 clearance |
| Common Misspellings | 22210EAB33 J30; 22210-EAB33J30; 22210EA B33J30; 2210EAB33J30; 22210EAB33J3O; SNR 22210EAB33; 22210EAW33 C3 |
| Application Types | Gearboxes; fans and blowers; conveyor pulleys and head shafts; pumps; mixers and agitators; crushers and vibrating screens; kiln and mill drives; dryer sections and other hot-running plant |
| Bore Shaft Size | 50 mm |
| Mpn Variants | 22210EAB33J30; 22210-E-A-B33-J30; 22210 EA B33 J30; 22210EAB33; 22210EAW33C3; 22210-EA-W33-C3; 22210EAW33; 22210EA; 22210 |
| Manufacturer Status | SNR Roulements of Annecy, France was acquired progressively by NTN between 2007 and 2013, renamed NTN-SNR Roulements in 2010 and rebranded NTN Europe in 2023. The modern designation for this bearing is 22210EAW33C3. |
| Compatible With Replaces | Related size, not a drop-in: 22210EAKW33C3 and 22210EAKB33J30 are the tapered-bore (1:12) versions of this envelope and require an H310 adapter sleeve on a 45 mm shaft. 22210EAW33 without a clearance suffix is the same bearing in Normal clearance. |
| Cage Type | Window |
| Dynamic Load Rating | 130,000 N |
| Static Load Rating | 124,000 N |
| Rolling Elements | Spherical Roller |
| Cage Material | Pressed steel |
| Number Of Rows | 2 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Limiting Speed | 9,100 rpm |
| Harmonization Code | 8482.30.00 |
| Internal Clearance | C3 |
| Part Number | 22210EAB33J30 |
| Maximum Permissible Misalignment | 2° |
| Cross Reference 1 | NTN 22210EAW33C3 - modern NTN-SNR designation |
|---|---|
| Cross Reference 2 | Timken 22210EJW33C3 |
| Cross Reference 3 | RHP 22210EJW33C3 |
| Cross Reference 4 | NSK 22210EAE4C3 |
| Cross Reference 5 | NTN 22210EAD1C3 - NTN Japan lube-code form |
| Cross Reference 6 | SKF 22210 E - specify C3 |
| Cross Reference 7 | FAG 22210-E1-XL - specify C3 |
| Cross Reference 8 | Nachi 22210EXW33 - specify C3 |
A double-row spherical roller bearing, 50 mm bore x 90 mm outside diameter x 23 mm wide, in the ISO 222 dimension series. Two rows of barrel rollers share one spherical outer raceway, so the inner ring and roller set swivel inside the outer ring. The bearing is self-aligning and carries heavy radial load and thrust in both directions. Unit Quantity: 1 Pc.
222 — double-row spherical roller bearing, dimension series 22.
10 — bore code for a 50 mm bore.
E — the increased-capacity Ultage design, heat-stabilised for operation to 200 °C.
A — pressed steel window cage, phosphated.
B33 — the legacy SNR code for the annular lubrication groove around the outer ring plus lubrication holes through it, the same feature as W33.
J30 — the legacy SNR clearance code, equal to C3, radial internal clearance greater than Normal.
No K — straight cylindrical bore.
Bearing Type: Spherical roller bearing, double row, self-aligning. Rolling Elements: Barrel rollers. Number Of Rows: 2. Bore Type: Straight. Closure Type: Open. Cage: Pressed steel window cage. Internal Clearance: C3. Material: Bearing steel. Series: 222 (ISO dimension series 22). Maximum Permissible Misalignment: 2°. Basic dynamic load rating C: 130 kN. Basic static load rating C0: 124 kN. Fatigue limit load Cu: 15.1 kN. Reference speed: 6 700 rpm. Limiting speed: 9 100 rpm. Mass: approximately 0.63 kg. Ratings are NTN-SNR’s published figures for the 22210EAW33.
Bore Diameter: 50 mm. Outside Diameter: 90 mm. Overall Width: 23 mm. The outer ring carries an annular lubrication groove and holes. The straight bore mounts on a plain shaft seat.
The modern NTN-SNR designation for this bearing is 22210EAW33C3. Other makers’ straight-bore 22210 bearings: NTN 22210EAW33C3, Timken 22210EJW33C3, RHP 22210EJW33C3, NSK 22210EAE4C3, NTN 22210EAD1C3 (NTN Japan lube-code form), SKF 22210 E (specify C3), FAG 22210-E1-XL (specify C3), Nachi 22210EXW33 (specify C3). The tapered-bore versions 22210EAKW33C3 and 22210EAKB33J30 are related sizes with a 1:12 taper that take an H310 adapter sleeve on a 45 mm shaft. MPN Variants: 22210EAB33J30, 22210-E-A-B33-J30, 22210 EA B33 J30, 22210EAB33, 22210EAW33C3, 22210-EA-W33-C3, 22210EAW33, 22210EA, 22210.
Yes. B33 and W33 name the same lubrication groove and holes, and J30 and C3 name the same clearance. SNR’s catalogue prints both forms.
No. There is no K in the designation, so the bore is straight and cylindrical.
Dynamic 130 kN, static 124 kN, fatigue limit 15.1 kN.
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