NSKSpherical Roller Bearing – Tapered Bore, 80 mm ID, 140 mm OD, 33 mm Width, Open, C3 Internal clearance

Product Description

What this part is

NSK 22216HKC3 is a double-row spherical roller bearing. Bore Diameter: 80 mm. Outside Diameter: 140 mm. Width: 33 mm. Series: 22200. Bore Type: Tapered 1:12. Two rows of barrel-shaped rollers run on a common spherical outer raceway, so the bearing carries heavy radial load together with axial load in both directions and accommodates shaft deflection and housing misalignment up to 1.5°.

Decoding the designation

K — tapered bore, 1:12 taper.

C3 — internal radial clearance greater than normal.

What these specs mean in practice

Cage Type: Pressed. Cage Material: Steel. Internal Clearance: C3. Precision Class: ABEC 1 / P0. Bore Type: Tapered 1:12. Dynamic Load Rating: 228 kN. Static Load Rating: 255 kN. Limiting Speed: 4,300 rpm. Maximum Permissible Misalignment: 1.5°. Item Weight: 4.80 lb. Country of Origin: Japan. A pressed steel cage keeps rotating mass and cost down and suits the moderate speeds this size runs at. C3 clearance leaves running clearance after the interference fit of a tapered-bore mounting and after thermal growth of the inner ring, which suits shafts that run warm.

Mounting data

The 1:12 tapered bore seats on an H316 adapter sleeve, which has a 70 mm shaft seat and an 80 mm tapered outside diameter matching this bore. The sleeve takes a KM16 locknut and an MB16 lockwasher. The taper allows the bearing to sit at any position along a plain shaft.

Quantity and configuration

Unit Quantity: 1 Pc. Open on both faces.

Interchange guidance

SKF 22216 EK/C3 is a tapered-bore C3 spherical roller bearing in the 80 x 140 x 33 mm size; SKF’s E design carries higher ratings. NSK 22216E is the straight-bore version in the same 80 x 140 x 33 mm size and mounts directly on a shaft seat instead of on a sleeve.