FAG22234EW33Double Row Spherical Roller Bearing – Straight Bore, 170 mm ID, 310 mm OD, 86 mm Width, Open, W33 Lubrication Groove, CN Internal Clearance

Product Description

What this part is

FAG 22234E double-row spherical roller bearing. Design series 222, 170 mm bore x 310 mm outside diameter x 86 mm width. Straight cylindrical bore, open, with a lubrication groove and three radial holes in the outer ring. Carton designations: 22234E, 22234 E W33, 22234-E-W33, 22234C, 22234CC, 22234CJ. Current Schaeffler designation: 22234-E1-XL.

Decoding the designation

Series: 222, the wide section of the spherical roller range. Design E: reinforced execution, giving a higher load rating than the earlier design at the same envelope. W33: lubrication groove in the outer ring plus three radial feed holes. Bore Type: straight cylindrical, mounted directly on a cylindrical shaft seat. Radial Internal Clearance: CN, the normal group, indicated by the absence of a C3 or C4 suffix.

What these specs mean in practice

A double-row spherical roller bearing accommodates static and dynamic misalignment between the shaft and the housing, and takes radial load together with axial load in both directions. Basic dynamic load rating, radial: 1,320,000 N. Basic static load rating, radial: 1,570,000 N. Fatigue load limit, radial: 144,000 N. Limiting speed: 2,550 rpm. Reference speed: 1,780 rpm. Operating range: -30 °C to 200 °C. Weight: 58.30 lb (26.4 kg). Static capacity above dynamic capacity is normal for a double-row spherical roller bearing, and reflects the very large contact area of two rows of barrel rollers on a common sphered outer raceway.

Load factors

Limiting value of Fa/Fr for the applicability of factors X and Y: 0.26. Static axial load factor: 2.54. Dynamic axial load factors: 2.6 and 3.87. This part is designated remanufacturable by Schaeffler.

Quantity and configuration

One bearing, complete: both rings, both roller rows and the cage.

Fitting notes

Straight bore, mounted with an interference fit directly on a cylindrical shaft seat. Minimum shaft shoulder diameter: 187 mm. Maximum housing shoulder diameter: 293 mm. Inner ring raceway diameter: 199.8 mm. Outer ring bore diameter: 275.4 mm. Minimum chamfer dimension: 4 mm. Maximum recess radius: 3 mm. Lubrication hole diameter: 9.5 mm. Lubrication groove width: 17.7 mm. The W33 groove and holes allow grease or oil to be fed through the housing directly to the roller path.

Interchange guidance

Same-specification equivalents: SKF 22234 CC/W33, Timken 22234EJ W33, NSK 22234EAE4, NTN 22234E, SNR 22234E. The tapered-bore execution, FAG 22234-E1-XL-K, is a related size: its 1:12 bore mounts on an H2334 adapter sleeve rather than a cylindrical seat. The C3 and C4 executions are related sizes with greater radial internal clearance.