SL185005-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 SL185005-XL model number is decoded

envelope 25×47×30 mm with a 11.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 60 kN and C0 64 kN; with a C/C0 ratio of 0.94 the 30 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 11.3 kN, the limiting speed 9,500 r/min and the thermal reference speed 6,000 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 2.40 kN per millimetre of the 25 mm bore and 2.00 kN per millimetre of the 30 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 230 g (0.16 g per mm² of the 47×30 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 25 mm bore falls in the small band, the workhorse size for gearbox planetary positions, hydraulic pumps and general cam and linkage duty Reading SL1850: dimension series 50, double row, no cage; the bearing is supplied with annular lubrication features and is intended for oil or grease lubrication in heavy gearboxes Two cageless roller rows inside the 47×30 mm envelope give C 60 kN and C0 64 kN — among the highest radial capacities available at the 25 mm bore X-life status (-XL) indicates the current Schaeffler premium execution at 25 mm bore; the 64 kN C0 rating reflects the improved rolling-contact geometry. Typical applications include marine and offshore winch arrangements, rope drums and winch drums and hydraulic pumps and radial piston pumps, where the 47 mm outside diameter and 60 kN dynamic rating match the duty. In marine and offshore winch arrangements the unit fits a compact 25 mm seat, and in rope drums and winch drums the 230 g mass suits the compact, space-optimised housing. Designers also specify it for hydraulic pumps and radial piston pumps, relying on the 30 mm width and the published 64 kN static rating. 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. 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.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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.
• 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.
• C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.