SL192314-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 SL192314-XL model number is decoded

envelope 70×150×51 mm with a 40.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 385 kN and C0 385 kN; with a C/C0 ratio of 1.00 the 51 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 73 kN, the limiting speed 3,050 r/min and the thermal reference speed 2,170 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 5.50 kN per millimetre of the 70 mm bore and 7.55 kN per millimetre of the 51 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 4.33 kg (4330 g) (0.57 g per mm² of the 150×51 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 70 mm bore the 150 mm outside diameter and 51 mm width target rolling stands, construction machinery and heavy gearboxes; the limiting speed drops to 3,050 r/min The separable inner-ring/roller assembly and the single-flanged outer ring allow this bearing to be used as the floating or one-direction-locating position in a two-bearing shaft system The 51 mm width versus 150 mm outside diameter gives this series its characteristic squat proportions and high tipping rigidity under eccentric loads As an X-life (-XL) bearing it benefits from the optimised surface finish that reduces friction and raises the fatigue strength behind the 73 kN Cur value. Typical applications include vibrating and oscillating machinery, heavy industrial gearbox shafts and rope drums and winch drums, where the 150 mm outside diameter and 385 kN dynamic rating match the duty. In vibrating and oscillating machinery the unit fits a compact 70 mm seat, and in heavy industrial gearbox shafts the 4.33 kg mass is part of the rotor inertia calculation. Designers also specify it for rope drums and winch drums, relying on the 51 mm width and the published 385 kN static rating. 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.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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.
• 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.