FAG20226KMBC3Single Row Barrel Roller Bearing – 130 mm ID, 230 mm OD, 40 mm Width, Open, 1:12 Tapered Bore, Machined Brass Cage, C3 Clearance

Product Description

What this part is

FAG 20226-K-MB-C3, a single-row barrel roller bearing. Series: 202. Bore: 130 mm (5.1181 in). Outside Diameter: 230 mm (9.0551 in). Width: 40 mm (1.5748 in). One row of barrel-shaped rollers runs on a spherical outer raceway, so the inner ring, roller set and cage swivel inside the outer ring. Tapered bore, taper 1:12. Country of origin: Germany.

Decoding the designation

202 is the single-row barrel roller series. The bore code 26 gives a 130 mm bore, at five millimetres per unit of code. K sets the bore form: tapered, taper 1:12. MB is a solid machined brass cage. C3 is a radial internal clearance group larger than normal.

What these specs mean in practice

Dynamic Load Rating: 330 kN. Static Load Rating: 450 kN. Fatigue Load Limit: 43.5 kN. Limiting speed: 3,300 rpm. A barrel roller carries radial load and self-aligns on its spherical outer raceway, absorbing shaft deflection and housing misalignment without edge-loading the rollers. Load is radial. On this bearing type the static rating sits above the dynamic rating. C3 clearance leaves running clearance after a tight shaft fit and after thermal growth of the inner ring, which suits heat-soaked service, and on a bearing set by an adapter sleeve rather than by preload the C3 group is the specified condition. The machined brass cage carries higher speed and temperature than a pressed steel cage, and it sets the 200 °C maximum operating temperature.

Quantity and configuration

One bearing. Bearing only.

Related parts

The tapered bore seats on an adapter sleeve when the bearing goes onto a plain cylindrical shaft. Schaeffler names the H3026 adapter sleeve for this bearing. The sleeve is normally locked with a KM series locknut and an MB series lockwasher, each a separate part.

Fitting notes

Minimum shaft shoulder diameter: 144 mm. Maximum shaft shoulder diameter: 154 mm. Maximum housing shoulder diameter: 216 mm. Maximum recess radius: 2.5 mm. Minimum chamfer dimension: 3 mm. Outer ring bore diameter: 205.7 mm. Sleeve cavity: minimum diameter 137 mm, minimum width 20 mm. Operating temperature range: -30 °C to 200 °C.

Interchange guidance

Searchable variants: 20226-K-MB-C3, 20226K.MB.C3, 20226KMBC3, 20226 K MB C3, 20226K. Related sizes: 20226-MB is the same envelope with a cylindrical bore, and 22226K is a double-row spherical roller bearing, a different bearing type on a similar envelope. Other makers: SKF 20226 CCK/C3W33, NTN 20226KC3.