SL183036 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 SL183036 model number is decoded

envelope 180×280×74 mm with a 50.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 810 kN and C0 1240 kN; with a C/C0 ratio of 0.65 the 74 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 157 kN, the limiting speed 1,370 r/min and the thermal reference speed 1,020 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 4.50 kN per millimetre of the 180 mm bore and 10.95 kN per millimetre of the 74 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 16.1 kg (16100 g) (0.78 g per mm² of the 280×74 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads 180 mm bore, 280 mm outside diameter: at this size the 1240 kN C0 rating and rigid full-complement pack replace multi-bearing arrangements in compact heavy-duty designs Reading the designation: SL18 marks the Schaeffler full-complement semi-locating type with one rib on the outer ring and two ribs on the inner ring; the rollers are axially guided by the inner ring while the outer ring can displace by the catalogue s-value The semi-locating function means this bearing locates the shaft in one axial direction and floats in the other — useful in two-bearing shafts where one position is fixed and the other absorbs expansion Typical applications include hydraulic pumps and radial piston pumps, marine and offshore winch arrangements and rolling-mill and steel-industry drives, where the 280 mm outside diameter and 810 kN dynamic rating match the duty. In hydraulic pumps and radial piston pumps the unit fits a compact 180 mm seat, and in marine and offshore winch arrangements the 16.1 kg mass is part of the rotor inertia calculation. Designers also specify it for rolling-mill and steel-industry drives, relying on the 74 mm width and the published 1240 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. The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.

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.
• The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
• 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.