RHP22218KW33C3Spherical Roller Bearing – Tapered 1:12 Bore, 90 mm ID, 160 mm OD, 40 mm Width, Open, W33 Lubrication Groove, C3 Internal Clearance.

Product Description

What this part is: RHP 22218KW33C3 double-row spherical roller bearing. Series: 22200. Bore: 90 mm. Outside Diameter: 160 mm. Overall Width: 40 mm. Bore Type: Tapered, 1:12. Number Of Rows: 2. Rolling Elements: Spherical Rollers. Bearing Material: Chrome steel. Closure Type: Open. Internal Clearance: C3. Precision Class: P0. Precision Rating: ABEC 1. Decoding the designation: K: a 1:12 tapered bore. W33: an annular lubrication groove machined into the outer ring outside diameter with three radial feed holes running inward to the rolling elements. C3: internal radial clearance greater than normal. Cage Type: Pressed, window type. Cage Material: Pressed steel. What these specs mean in practice: Dynamic Load Rating: 339 kN / 76,209 lbf. Static Load Rating: 406 kN / 91,271 lbf. Limiting Speed: 3,400 rpm on oil and 2,600 rpm on grease. Two rows of barrel rollers run on a common spherical raceway in the outer ring, so the bearing carries very high radial load, takes thrust in both directions, and accommodates shaft misalignment and housing deflection without raising edge stress on the rollers. The C3 clearance leaves room for the interference generated when the inner ring is driven up the sleeve taper, and for thermal growth of the shaft in service. Lubrication: Lubricant: grease or oil. The W33 groove distributes lubricant circumferentially around the outer ring and its three radial holes carry it inward to both roller rows. The same passages serve a grease gun, an automatic single-point lubricator, a centralised grease system, or circulating-oil and oil-mist feed. Bore form and mounting: The 1:12 tapered bore mounts on an H318 adapter sleeve, whose tapered outside diameter is 90 mm and whose shaft seat is 80 mm. The sleeve is secured with a KM18 locknut and an MB18 lockwasher. Driving the inner ring up the taper sets the operating clearance, which is why the bearing is supplied at C3 rather than normal clearance. Quantity and configuration: Unit Quantity: 1 Pc. Item Weight: 7.47 lbs. Max Temp: 200°C. Min Temp: -40°C. Interchange guidance: Cross-Reference 1: SKF 22218 EK/C3. Cross-Reference 2: Timken 22218KEJW33C3. Cross-Reference 3: FAG 22218-E1-XL-K-C3. Each is a 90 x 160 x 40 mm, 1:12 tapered-bore, W33-grooved double-row spherical roller at C3 clearance. A plain 22218 without the K carries a straight bore, mounts directly on the shaft and is a related size rather than a direct substitution. Searchable variants: 22218KW33C3, 22218-K-W33-C3, 22218 K W33 C3, 22218KHL, 22218HLKW33C3, 22218KW33, 22218EKC3. Harmonization Code: 8482.30.00.