SNR22232VKF107Spherical Roller Bearing 160x290x80 mm, Double Row, Self-Aligning, ISO 222 Series — Bore Type and Clearance To Be Confirmed

Product Description

What this part is

A double-row spherical roller bearing, 160 mm bore, 290 mm outside diameter, 80 mm width. The outer ring carries a single spherical raceway, letting the roller-and-inner-ring assembly swivel inside it. SNR is the French bearing maker now trading as NTN-SNR.

Decoding the designation

222 — the ISO 222 dimension series, the wider and higher-capacity of the common spherical series.

32 — ISO bore code 32, giving a 160 mm bore. The full 22232 designation therefore describes the 160 x 290 x 80 mm envelope, which agrees with the dimensions recorded for this item.

Source cross-reference

The source data for this item carried the cross-reference 22232-K-MB-C3-W33.

In that reference, K denotes a 1:12 tapered bore, MB a machined brass cage, C3 an internal clearance class wider than normal, and W33 an outer-ring oil groove with lubrication holes.

Bore, clearance and lubrication features

A tapered-bore bearing seats on a 1:12 shaft taper or on an adapter sleeve with a lock nut, while a parallel-bore bearing seats directly on a cylindrical shaft. Clearance class is selected to suit the mounting method and the operating temperature, since residual clearance falls as the bearing is driven up and as the inner ring runs hotter than the outer. A W33 groove and holes allow relubrication through the housing while the bearing remains in service.

What these specs mean in practice

Spherical roller bearings accommodate several tenths of a degree of misalignment between shaft and housing without edge-loading the rollers, and they carry very high radial load for their size. That combination makes them the standard choice for long shafts that deflect under load, split or separately-machined housings, and equipment mounted on structures that move — conveyors, fans, crushers, screens, mill drives.

Fitting notes

A parallel-bore bearing is an interference fit on the shaft and is mounted by heating, typically with an induction heater; mounting force is never driven through the rollers. A tapered-bore bearing mounts by controlled drive-up on a taper seat or adapter sleeve, measured as radial clearance reduction or axial advance.

Interchange guidance

ISO base number 22232. Current NTN-SNR equivalents in this envelope include 22232EAW33 (straight bore) and 22232EAKW33 (tapered bore), with EM and EMK variants carrying a machined brass cage, and C3 available on both. Bore type, cage and clearance class are matched alongside the 22232 root, not by the root alone. A second SNR 22232 in this same envelope exists under variant code VB33J30, listed separately under SKU B-CD4#BRZ5FT.