SNRSpherical Roller Bearing – Double Row, 1:12 Tapered Bore, 110 mm ID, 200 mm OD, 53 mm Width, Open, W33 Lubrication Groove, C3 Internal Clearance

Product Description

What this part is

SNR 22222EAKB33J30 double-row spherical roller bearing. Series: 22200. Base Number: 22222. Bore: 110 mm. Outside Diameter: 200 mm. Overall Width: 53 mm. Number Of Rows: 2. Rolling Elements: Spherical Roller. Bore Type: Tapered 1:12. Closure Type: Open. Cage Material: Pressed Steel. Cage Type: Pressed, roller-centred. Internal Clearance: C3. Precision Class: ABEC 1 / ISO P0. Bearing Material: High carbon chrome steel. Item Weight: 15.60 lb (7.08 kg). Design Units: Metric. Unit Quantity: 1 Pc. GTIN: 3413520084356.

Decoding the designation

EA marks the reinforced high-capacity execution with a pressed steel cage. K is the 1:12 tapered bore. B33 is the SNR form of the W33 lubrication feature — an annular groove machined in the outer ring outside diameter with three radial holes through to the rolling elements. J30 is the SNR clearance code for C3, a radial internal clearance wider than normal. The part is also marked 22222 EAK B33 J30, 22222EAKW33C3 and 22222K.

What these specs mean in practice

Two rows of barrel-profile rollers run on a common sphered outer raceway, so the bearing carries heavy radial load and thrust in both directions while accommodating shaft-to-housing misalignment. Maximum Permissible Misalignment: 2°. Dynamic Load Rating: 534 kN (120,050 lbf). Static Load Rating: 636 kN (142,980 lbf). Limiting Speed: 3600 rpm. Maximum Operating Temperature: 200°C. Running Accuracy — Radial And Axial Runout: Standard. C3 clearance suits a tapered-bore mounting drawn up its seat, a heavy interference fit, or a shaft running hotter than its housing. Lubricant: grease or oil — the B33 groove and its three radial holes take either from the housing lubrication port and distribute it circumferentially around the outer ring before feeding it inward to the roller sets.

Bore form and adapter sleeve

The bore is tapered 1:12 with a 110 mm large-end diameter, so it seats on an adapter sleeve whose tapered outside diameter is 110 mm. That sleeve is the H322, which carries a 100 mm cylindrical shaft seat, together with a KM 22 locknut and an MB 22 lock washer. Drawing the bearing up the sleeve taper sets the radial internal clearance by controlled inner-ring expansion.

Quantity and configuration

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

Interchange guidance

Cross-Reference: SKF 22222 EK, FAG 22222-E1-K. Both are tapered-bore 22222 bearings in the same 110 x 200 x 53 mm size, but in normal (CN) clearance and without the W33 groove. Harmonization Code: 8482.30.00.