SKF bearing suffix

The following are a small portion of SKF bearing suffix, more informations please refer to SKF bearing part numbers.

There are so many SKF bearing suffixes that I just list some of them for reference:

SKF C40 Reduced O.D. tolerances on high side.
SKF C50 Reduced O.D. tolerance on low side.
SKF GS Removable molded seal on one side.
SKF LS Drual cage, outer ring centered.
SKF N Snap ring groove (without ring).
SKF SS Back up plate seal on one side.
SKF W2 Bearing meeting special torque requirements.
SKF W3 Bearing marked to show measured accuracy.
SKF W5 Customer’s part number marked on bearings.
SKF W6 Gear side marked on bearing.
SKF W7 Bearing bore diameter indicated.
SKF TSS TS with Steep Angle.
SKF TST TS with Tappered Bore.
SKF TSF (B) – Flange Cup.
SKF TDI (D) one double cup and two single cup.
SKF TDI D as suffix with cone number.
SKF TDIT (D) TDI- with tappered cone bore.
SKF TDIS (D) TDI- with steep angle.
SKF TDO (D) Double cup with two single cone.
SKF TDO D as suffix with cup number.
SKF TDOS (D) TDO with steep Angle.
SKF TQOD TQO with extended inner.
SKF (W) Suffix for oil hole.
SKF TTCS (T) (W) Metal retainer is only on the sides.
SKF TTHD (T) Thrust Bearing Rollers separable by cage.
SKF SR Double cup with snap ring-slotted for lubrication.
SKF SS SR with ‘Duo-Face’ seals.
SKF TK High speed bearing, higher than dn=50×10.
SKF TS1 Bearing For operating temperature upto 1300 C
SKF TS2 Bearing for operating temperatures upto 1600 C
SKF TS3 Bearing for operating temperatures upto 2000 C
SKF TS4 Bearing for operating upto 2500 C
SKF H High speed steel bearing.


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