SL185010-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 SL185010-XL model number is decoded

envelope 50×80×40 mm with a 15.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 151 kN and C0 188 kN; with a C/C0 ratio of 0.80 the 40 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 30.5 kN, the limiting speed 5,300 r/min and the thermal reference speed 3,450 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 3.02 kN per millimetre of the 50 mm bore and 3.77 kN per millimetre of the 40 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 760 g (0.24 g per mm² of the 80×40 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 50 mm bore this is a mainstream industrial size — conveyor drives, winches and medium gearboxes use the 40 mm width as a standard mounting space Full-complement kinematics cap the speed at 5,300 r/min (reference 3,450 r/min); below that limit the double-row pack offers exceptional stiffness for its section The semi-locating SL1850 structure uses inner-ring ribs with a retaining ring on the flangeless side; it carries high radial loads plus axial load in one direction, which is why it often pairs with an SL0149 locating bearing 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 5,300 r/min limit. Typical applications include planetary gear bearing positions, construction machinery slewing drives and compact slow-speed agitator drives, where the 80 mm outside diameter and 151 kN dynamic rating match the duty. In planetary gear bearing positions the unit fits a compact 50 mm seat, and in construction machinery slewing drives the 760 g mass suits the compact, space-optimised housing. Designers also specify it for compact slow-speed agitator drives, relying on the 40 mm width and the published 188 kN static rating. The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling. 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.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

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