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SKF - Rolling Bearings

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9 CARB toroidal roller bearings<br />

Designation system<br />

Group 1 Group 2 Group 3 / Group 4<br />

4.1 4.2 4.3 4.4 4.5 4.6<br />

Prefixes<br />

ZE<br />

Bearing with SensorMount feature<br />

Basic designation<br />

Listed in diagram 2 († page 43)<br />

Suffixes<br />

Group 1: Internal design<br />

Group 2: External design (seals, snap ring groove etc.)<br />

-CS5, -2CS5 Contact seal, HNBR, on one or both sides<br />

K Tapered bore, taper 1:12<br />

K30 Tapered bore, taper 1:30<br />

Group 3: Cage design<br />

– Stamped steel cage, roller centred<br />

M<br />

Machined brass cage, roller centred<br />

MB, MB1 Machined brass cage, inner ring centred<br />

TN9 Glass fibre reinforced PA46 cage, roller centred<br />

V<br />

Full complement of rollers (no cage)<br />

Group 4.1: Materials, heat treatment<br />

HA3<br />

Case-hardened inner ring<br />

Group 4.2: Accuracy, clearance, preload, quiet running<br />

C08<br />

C2<br />

C3<br />

C4<br />

C5<br />

Running accuracy to P5 tolerance class<br />

Radial internal clearance smaller than Normal<br />

Radial internal clearance greater than Normal<br />

Radial internal clearance greater than C3<br />

Radial internal clearance greater than C4<br />

Group 4.3: Bearing sets, matched bearings<br />

Group 4.4: Stabilization<br />

Group 4.5: Lubrication<br />

GEM9<br />

Filled to 70–100% with <strong>SKF</strong> LGHB 2 grease<br />

Group 4.6: Other variants<br />

VE240<br />

VG114<br />

Bearing modified for greater axial displacement<br />

Surface-hardened stamped steel cage<br />

978

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