NSKHPS22216EAE4Double-Row Spherical Roller Bearing – Cylindrical Bore, 80 mm ID, 140 mm OD, 33 mm Width, Open, W33 Lubrication Groove, CN Clearance

Product Description

What this part is: NSK HPS22216EAE4 double-row spherical roller bearing. Series: 222. Bore: 80 mm, cylindrical. Outside diameter: 140 mm. Width: 33 mm. Cage: pressed steel. Radial internal clearance: CN. Tolerance: ISO Normal Class. Outer ring: lubrication groove with three radial feed holes. Decoding the designation: HPS: NSK High Performance Standard spherical roller series. 22216: 222-series double-row spherical roller bearing, 80 mm bore. EA: pressed steel cage execution. E4: lubrication groove in the outer ring plus three radial feed holes, equivalent to the W33 suffix. No K in the designation, so the bore is cylindrical and mounts directly on the shaft. Load ratings and speed: Basic dynamic load rating Cr: 264,000 N (264 kN). Basic static load rating C0r: 275,000 N (275 kN). Limiting speed, grease lubrication: 3,600 rpm. Limiting speed, oil-bath: 4,500 rpm. Thermal speed rating to ISO 15312, oil-bath: 4,000 rpm. Mechanical limit with forced-circulation oil: 6,000 rpm. Calculation factors: e 0.22, Y2 4.6, Y3 3.1, Y0 3.0. Mass: 2.01 kg. What these specs mean in practice: Two rows of barrel rollers run on a common spherical outer raceway, so the inner ring and roller set swivel inside the outer ring and absorb shaft deflection and housing misalignment without edge-loading a raceway. Thrust is carried in both directions. The static rating above the dynamic rating is characteristic of the double-row spherical roller type at this section. The W33 groove and three holes let grease enter at the loaded zone rather than only at the bearing faces, which is what makes relubrication effective in a split housing. Fitting notes: Shaft abutment diameter da: 90 mm minimum, 94 mm maximum. Housing abutment diameter Da: 126 mm minimum, 130 mm maximum. Chamfer dimension r: 2 mm minimum. Permissible shaft or housing fillet radius ra: 2 mm maximum. The cylindrical bore mounts direct on a shaft seat. Quantity and configuration: One bearing. Country of origin: Japan. Interchange guidance: SKF 22216 E/W33 and FAG 22216-E1-XL are the straight-bore equivalents at this envelope. SKF 22216 EK and FAG 22216E1.K carry a 1:12 tapered bore for an adapter sleeve — related sizes at the same envelope. Searchable forms: HPS22216EAE4, HPS 22216 E A W33/E4, 22216-E-A-W33, 22216EAE4, 22216 CC, 22216 CCJ.