SL182940-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 SL182940-XL model number is decoded

envelope 200×280×48 mm with a 40.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 610 kN and C0 940 kN; with a C/C0 ratio of 0.65 the 48 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 142 kN, the limiting speed 1,320 r/min and the thermal reference speed 950 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 3.05 kN per millimetre of the 200 mm bore and 12.71 kN per millimetre of the 48 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 9.1 kg (9100 g) (0.68 g per mm² of the 280×48 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 200 mm bore puts this execution at the top of the HR1 range — the 280 mm outside diameter, 48 mm width and 9.1 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 40.0 mm section height between the 200 mm bore and the 280 mm outside diameter SL182940-XL is a single-row full-complement cylindrical roller bearing: no cage is fitted, so the maximum number of rollers runs between the rings, and the rollers guide themselves on the two inner-ring ribs 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 1,320 r/min limit. Typical applications include material handling conveyor pulleys, rolling-mill and steel-industry drives and construction machinery slewing drives, where the 280 mm outside diameter and 610 kN dynamic rating match the duty. In material handling conveyor pulleys the unit fits a compact 200 mm seat, and in rolling-mill and steel-industry drives the 9.1 kg mass is part of the rotor inertia calculation. Designers also specify it for construction machinery slewing drives, relying on the 48 mm width and the published 940 kN static rating. Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease. C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.
• C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.
• 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.