RHP22220EKJW33C3Spherical Roller Bearing — 100 mm ID, 180 mm OD, 46 mm Width, 1:12 Taper Bore, Open, W33 Lubrication Groove, C3 Clearance, Pressed Steel Cage

Product Description

What this part is

RHP 22220EKJW33C3 double-row spherical roller bearing. Bore: 100 mm, 1:12 taper. Outside Diameter: 180 mm. Overall Width: 46 mm. Closure Type: Open, both faces. Internal Clearance: C3, greater than normal. Cage Type: Pressed. Cage Material: Pressed steel. Rolling Elements: Spherical roller. Number Of Rows: 2. Series: 222, the narrow section of the spherical roller range. Bearing Material: Bearing steel. The two roller rows run on a common spherical outer raceway, so the inner ring and roller assembly swivel inside the outer ring and the bearing accommodates shaft deflection and housing misalignment.

Decoding the designation

222 — the narrow spherical roller series.

20 — ISO bore code 20, a 100 mm bore.

E — reinforced high-capacity internal design.

K — 1:12 taper bore.

J — pressed steel cage.

W33 — an annular lubrication groove around the outer ring with three radial feed holes.

C3 — internal radial clearance greater than normal.

What these specs mean in practice

The self-aligning geometry carries heavy radial load while accommodating misalignment between shaft and housing, which is why spherical rollers dominate conveyor pulleys, fans, crushers and gearbox output shafts. The two roller rows sit at opposing angles, so the bearing takes thrust in both directions as well as radial load. C3 clearance leaves running room for thermal growth of the inner ring relative to the outer, and it is the standard choice where the bearing mounts on a taper sleeve or runs warm. The W33 groove and its three radial holes take grease or oil from the housing straight to the rolling elements.

Adapter sleeve

Bearing only. The 1:12 taper bore mounts on an H320 adapter sleeve with a KM20 locknut and an MB20 lockwasher. The sleeve’s tapered outside diameter is 100 mm, matching the bearing bore, and it seats on a 90 mm plain shaft. Driving the bearing up the sleeve taper sets the final internal clearance.

Quantity and configuration

Unit Quantity: 1 Pc. Double row, open on both faces, thrust carried in both directions.

Mounting data

Radial internal clearance is measured with a feeler gauge before mounting and again after the locknut is drawn up; the reduction in clearance measures how far the ring has travelled up the taper. The W33 feed holes take lubricant from the housing lubrication port.

Interchange guidance

Direct equivalents on the same envelope and clearance are the SKF 22220 EK/C3, the FAG 22220-E1-K-C3, the NSK 22220EAKE4C3 and the Koyo 22220RKC3. A straight-bore 22220 shares the 180 x 46 mm outside envelope and mounts directly on a 100 mm shaft seat, which makes it a related size. A 22220 in normal CN clearance is likewise a separate part.