SNR22220EAKB33J40Spherical Roller Bearing – Double Row, 1:12 Tapered Bore, 100 mm ID, 180 mm OD, 46 mm Width, Open, W33 Lubrication Groove, C4 Internal Clearance

Product Description

What this part is

SNR 22220EAKB33J40 double-row spherical roller bearing. Series: 22200. Base Number: 22220. Bore: 100 mm. Outside Diameter: 180 mm. Overall Width: 46 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: C4. Precision Class: Normal (ISO P0 / ABEC 1). Bearing Material: Bearing steel. Item Weight: 10.9 lb (4.84 kg). Design Units: Metric. Unit Quantity: 1 Pc.

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. J40 is the SNR clearance code for C4, a radial internal clearance wider than normal. The part is also marked 22220 EA K B33 J40, 22220EAKW33C4, 22220CKJ, 22220CCKJ and 22220CC.

What these specs mean in practice

Two rows of barrel-profile rollers run on a common sphered outer raceway, so the bearing accommodates shaft-to-housing misalignment while carrying heavy radial load and thrust in both directions. Dynamic Load Rating: 472 kN. Static Load Rating: 495 kN. Limiting Speed: 3600 rpm. Maximum Operating Temperature: 200°C. C4 clearance suits a tapered-bore mounting drawn well up its seat, a heavy press 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 100 mm large-end diameter, so it seats on an adapter sleeve whose tapered outside diameter is 100 mm. That sleeve is the H320, which carries a 90 mm cylindrical shaft seat, together with a KM 20 locknut and an MB 20 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 22220 EK, FAG 22220-E1-K, Timken 22220EKJW33. All three are tapered-bore 22220 executions on the same 100 x 180 x 46 mm envelope with the W33 lubrication feature. Harmonization Code: 8482.30.00.80.