SL182968-TB bearing: complete specifications & equivalents

Specification table

Source: catalog reference (HR1 2026-09-25) · extracted 2026-09-30

Parameters extracted from the official FAG Rolling Bearings catalogue (HR1 2026-09-25); FAG® is a trademark of Schaeffler Technologies AG & Co. KG, used here for identification only — mpnbase is not an authorized FAG/Schaeffler distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at schaeffler.com.

Cross references & equivalents

Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

How the SL182968-TB model number is decoded

envelope 340×460×72 mm with a 60.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 1250 kN and C0 2470 kN; with a C/C0 ratio of 0.51 the 72 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 270 kN, the limiting speed 770 r/min and the thermal reference speed 460 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 3.68 kN per millimetre of the 340 mm bore and 17.36 kN per millimetre of the 72 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 34.7 kg (34700 g) (1.05 g per mm² of the 460×72 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 340 mm bore puts this execution at the top of the HR1 range — the 460 mm outside diameter, 72 mm width and 34.7 kg mass are built for primary-industry load cases The dimension-series digits place this bearing in the SL18 section of the HR1 plan, giving the 60.0 mm section height between the 340 mm bore and the 460 mm outside diameter High radial rigidity at 1250 kN C is the point of this design: rib-guided rollers in a cageless pack resist deflection in planetary gears, rope drums and vibrating machinery -TB marks the TB execution with higher permissible axial load — the improved roller-end/rib lubrication film carries more thrust than the standard full-complement design. Typical applications include hydraulic pumps and radial piston pumps, marine and offshore winch arrangements and rolling-mill and steel-industry drives, where the 460 mm outside diameter and 1250 kN dynamic rating match the duty. In hydraulic pumps and radial piston pumps the unit fits a compact 340 mm seat, and in marine and offshore winch arrangements the 34.7 kg mass is part of the rotor inertia calculation. Designers also specify it for rolling-mill and steel-industry drives, relying on the 72 mm width and the published 2470 kN static rating. C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film. Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.
• Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.
• Use the rib structure correctly: SL18/SL1850 give one-direction axial guidance, SL0149 locates both ways and SL0249 floats — pairing two locating bearings on one shaft binds thermal growth.