SNR22209VKB33Double-Row Spherical Roller Bearing – 45 mm Tapered Bore, 85 mm OD, 23 mm Width, W33 Lubrication Groove, CN Clearance, H309 Sleeve Mounting

Product Description

What this part is

SNR 22209VKB33 double-row spherical roller bearing. Series: 22200. Base Number: 22209. Bore: 45 mm. Outside Diameter: 85 mm. Overall Width: 23 mm. Bore Type: Tapered 1:12. Closure Type: Open. Number Of Rows: 2. Rolling Elements: Spherical Roller. Internal Clearance: CN. Precision Rating: ABEC 1 / P0. Bearing Material: Bearing steel. Item Weight: 0.565 kg (1.25 lb). Country of Origin: Italy. Searchable variants of the number: 22209VKB33, 22209.V.K.B33, 22209-V-K-B33, 22209 V K B33, 22209VKW33.

Decoding the designation

Series: 22200 — the wide double-row spherical roller series. V: internal design modification. K: 1:12 tapered bore. B33: SNR’s code for the W33 lubrication feature. No clearance suffix, so the clearance is CN, the normal radial class.

The W33 lubrication feature

B33 is an annular groove machined around the outside diameter of the outer ring, with three radial holes drilled through to the roller path. The groove distributes lubricant circumferentially around the outer ring and the three holes carry it inward to the rolling elements. Lubricant: grease or oil — the same passages serve a grease gun, a single-point lubricator, a centralised grease system, an oil-mist feed or a circulating-oil system.

Bore form and adapter sleeve

The bore is tapered 1:12 and the 45 mm figure is the small-end bore diameter. The matching adapter sleeve is an SNR H309 — its tapered outside diameter is 45 mm and its cylindrical shaft seat is 40 mm, so the bearing mounts on a 40 mm plain shaft. The sleeve is a separate part and carries its own KM locknut and MB lockwasher. Driving the bearing up the sleeve taper sets the internal clearance by controlled radial expansion of the inner ring.

What these specs mean in practice

Two rows of barrel rollers run on a common spherical raceway in the outer ring, so the inner ring and roller set swivel inside the outer ring. Permissible Misalignment: 0.5° at normal load. The 22200 series is the wide section of the spherical roller range and carries a higher radial rating than the 21300 section on the same bore. The double-row arrangement takes axial load in both directions alongside the radial load. Operating Temperature Range: −40 °C to 200 °C.

Quantity and configuration

Unit Quantity: 1 Pc. Single bearing, open on both faces, tapered bore, W33 groove in the outer ring. New old stock, made in Italy.

Interchange guidance

Same-envelope tapered-bore equivalents: SKF 22209 EK, Timken 22209KCJW33, FAG 22209-E1-K. Load ratings and cage execution differ between makers. Related part: SNR H309 adapter sleeve.