SNR22210EAKW33C3Spherical Roller Bearing – Double Row, 1:12 Tapered Bore, 50 mm ID, 90 mm OD, 23 mm Width, Open, W33 Lubrication Groove, C3 Internal Clearance

Product Description

What this part is

SNR 22210EAKW33C3 double-row spherical roller bearing. Series: 22200. Base Number: 22210. Bore: 50 mm. Outside Diameter: 90 mm. Overall Width: 23 mm. Number Of Rows: 2. Rolling Elements: Spherical Roller. Bore Type: Tapered 1:12. Closure Type: Open. Cage Material: Pressed Steel. Cage Type: Pressed. Internal Clearance: C3. Precision Class: ABEC 1 / ISO P0. Bearing Material: Bearing steel. Item Weight: 1.37 lb (0.62 kg). Design Units: Metric. Unit Quantity: 1 Pc. GTIN: 3413520082352.

Decoding the designation

222 is the double-row spherical roller medium width series and the bore code 10 gives a 50 mm bore. EA marks the reinforced high-capacity execution with a pressed steel cage. K is the 1:12 tapered bore. W33 is the lubrication feature — an annular groove machined in the outer ring outside diameter with three radial holes through to the rolling elements. C3 is a radial internal clearance wider than normal, which SNR also writes as J30. The part is also marked 22210 EA K B33 J30, 22210EAKB33J30 and 22210EKJ W33 C3.

What these specs mean in practice

Two rows of barrel-profile rollers run on a common sphered outer raceway, so the bearing takes up angular misalignment between two shaft supports while carrying heavy radial load and thrust in either direction. Dynamic Load Rating: 108 kN (24,280 lbf). Static Load Rating: 115 kN (25,850 lbf). Limiting Speed: 5600 rpm. Operating Temperature Range: −30°C to 200°C. C3 clearance suits a tapered-bore mounting drawn up its seat and a shaft running hotter than its housing, both of which consume running clearance.

Lubrication feature

Relubrication: W33 — an outer-ring lubrication groove with three radial holes. Lubricant: grease or oil. The groove distributes lubricant circumferentially around the outer ring and the three radial holes carry it inward to the centre of the roller path.

Bore form and adapter sleeve

The bore is tapered 1:12 with a 50 mm large-end diameter, so it seats on an adapter sleeve whose tapered outside diameter is 50 mm. That sleeve is the H310, which carries a 45 mm cylindrical shaft seat, together with a KM 10 locknut and an MB 10 lock washer. Drawing the bearing up the sleeve taper sets the radial internal clearance by controlled inner-ring expansion, which is what makes a tapered-bore spherical roller mountable on a plain unstepped shaft.

Quantity and configuration

Unit Quantity: 1 Pc. One complete double-row spherical roller bearing, open on both faces.

Interchange guidance

Cross-Reference: SKF 22210 EK/C3, FAG 22210-E1-K-C3, Timken 22210K C3. All three are tapered-bore 22210 executions at C3 clearance on the same 50 x 90 x 23 mm envelope. Harmonization Code: 84823000.