SL182924-XL 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 SL182924-XL model number is decoded

envelope 120×165×27 mm with a 22.5 mm radial section; every available circumferential space carries a roller because there is no cage C is 199 kN and C0 285 kN; with a C/C0 ratio of 0.70 the 27 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 46.5 kN, the limiting speed 2,290 r/min and the thermal reference speed 1,590 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 1.66 kN per millimetre of the 120 mm bore and 7.37 kN per millimetre of the 27 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 1.73 kg (1730 g) (0.39 g per mm² of the 165×27 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads with a 120 mm bore this is a heavy-industrial bearing: 1.73 kg of stiff ring and roller set, specified where rigidity matters more than speed In the 165 mm envelope the cageless pack raises C0 to 285 kN; the trade is the 2,290 r/min limiting speed, set by roller-to-roller sliding rather than by a cage High radial rigidity at 199 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 The -XL suffix is the Schaeffler X-life mark: interchangeable envelope with the basic bearing, but higher load capacity and lower running temperature at the 2,290 r/min limit. Typical applications include hydraulic pumps and radial piston pumps, marine and offshore winch arrangements and rolling-mill and steel-industry drives, where the 165 mm outside diameter and 199 kN dynamic rating match the duty. In hydraulic pumps and radial piston pumps the unit fits a compact 120 mm seat, and in marine and offshore winch arrangements the 1.73 kg mass is part of the rotor inertia calculation. Designers also specify it for rolling-mill and steel-industry drives, relying on the 27 mm width and the published 285 kN static rating. There is no cage: do not apply caged-bearing speed rules — the printed limiting speed is a hard kinematic ceiling set by roller-to-roller contact. The split outer ring of SL0149 is joined by retaining rings for handling only; never use those rings as a thrust face in the design.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• There is no cage: do not apply caged-bearing speed rules — the printed limiting speed is a hard kinematic ceiling set by roller-to-roller contact.
• The split outer ring of SL0149 is joined by retaining rings for handling only; never use those rings as a thrust face in the design.
• Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.