SL182948 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 SL182948 model number is decoded

envelope 240×320×48 mm with a 40.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 600 kN and C0 1120 kN; with a C/C0 ratio of 0.54 the 48 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 132 kN, the limiting speed 1,120 r/min and the thermal reference speed 750 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 2.50 kN per millimetre of the 240 mm bore and 12.50 kN per millimetre of the 48 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 10.6 kg (10600 g) (0.69 g per mm² of the 320×48 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 240 mm bore this is among the largest catalogue sizes; the 1,120 r/min limiting speed confirms a slow-speed, extreme-load application such as a slewing or rolling-mill position High radial rigidity at 600 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 Typical applications include marine and offshore winch arrangements, rope drums and winch drums and hydraulic pumps and radial piston pumps, where the 320 mm outside diameter and 600 kN dynamic rating match the duty. In marine and offshore winch arrangements the unit fits a compact 240 mm seat, and in rope drums and winch drums the 10.6 kg mass is part of the rotor inertia calculation. Designers also specify it for hydraulic pumps and radial piston pumps, relying on the 48 mm width and the published 1120 kN static rating. Press-fit the correct ring: the rotating ring needs interference while the floating ring must slide on its seat to perform the non-locating function. 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

• Press-fit the correct ring: the rotating ring needs interference while the floating ring must slide on its seat to perform the non-locating function.
• 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.