FAG22212KDouble-Row Spherical Roller Bearing – 1:12 Tapered Bore, 60 mm ID, 110 mm OD, 28 mm Width, Open, CN Clearance, H312 Sleeve Mount, 1.5° Misalignment

Product Description

What this part is

FAG 22212K double-row spherical roller bearing, 222 series, 60 mm bore x 110 mm outside diameter x 28 mm width. Bore: 60 mm. Outside Diameter: 110 mm. Overall Width: 28 mm. Bore Type: Tapered, 1:12 taper. Number Of Rows: 2. Rolling Elements: Spherical rollers. Closure Type: Open. Internal Clearance: CN, normal. Precision Class: ABEC 1, ISO normal. Permissible Misalignment: 1.5°. Maximum Operating Temperature: 200 °C. Minimum Operating Temperature: -30 °C. Design Units: Metric. Material: High-carbon chrome steel. Country of Origin: Germany.

Decoding the designation

222: the double-row spherical roller series. 12: the bore code, giving 60 mm. K: tapered bore, 1:12 taper, which is the standard taper for this series. No clearance code appears, so the clearance is CN. Searchable variants: 22212-K, 22212 K, 22212K.

What these specs mean in practice

Two rows of barrel-shaped rollers run in a common spherical outer raceway, so the inner ring, rollers and cage swivel as an assembly relative to the outer ring. That gives 1.5° of permissible misalignment and makes the bearing tolerant of shaft deflection and housing bore misalignment. Because both rows are angled, a double-row spherical roller bearing carries thrust in either direction as well as heavy radial load. The 1:12 tapered bore lets the bearing be driven up a matching taper, so radial internal clearance is set by drive-up distance rather than by shaft interference fit. Internal Clearance: CN, the normal class, which is correct on a clearance-set bearing. Lubricant: grease or oil. Rings are dimensionally stabilised for continuous running to 200 °C.

Quantity and configuration

Unit Quantity: 1 Pc. Tapered-bore execution. It mounts on an H312 adapter sleeve, which has a 55 mm cylindrical shaft seat and a 60 mm tapered outside diameter matching this bore, together with a KM12 locknut and an MB12 lockwasher. It also mounts directly on a shaft journal machined to a 1:12 taper.

Interchange guidance

Same-envelope tapered-bore designations: SKF 22212 EK, NSK 22212EAKE4, Timken 22212KEJW33, Koyo 22212RHRKW33. Related part in the same series: the 22212, which shares the 60 x 110 x 28 mm envelope with a straight cylindrical bore.