SL192307-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 SL192307-XL model number is decoded

envelope 35×80×31 mm with a 22.5 mm radial section; every available circumferential space carries a roller because there is no cage C is 126 kN and C0 110 kN; with a C/C0 ratio of 1.15 the 31 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 20.5 kN, the limiting speed 5,800 r/min and the thermal reference speed 3,600 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 3.60 kN per millimetre of the 35 mm bore and 4.06 kN per millimetre of the 31 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 740 g (0.30 g per mm² of the 80×31 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 35 mm bore this is a mainstream industrial size — conveyor drives, winches and medium gearboxes use the 31 mm width as a standard mounting space At 5,800 r/min limiting speed the SL1923 is a slow-speed, high-load bearing — the cageless rollers trade kinematic speed for the 126 kN dynamic rating SL1923 bearings are semi-locating, with one outer-ring rib and two inner-ring ribs; the wide section delivers extreme C0 — 110 kN at 35 mm bore — for slow heavy positions As an X-life (-XL) bearing it benefits from the optimised surface finish that reduces friction and raises the fatigue strength behind the 20.5 kN Cur value. Typical applications include compact slow-speed agitator drives, planetary gear bearing positions and crane travelling-wheel mechanisms, where the 80 mm outside diameter and 126 kN dynamic rating match the duty. In compact slow-speed agitator drives the unit fits a compact 35 mm seat, and in planetary gear bearing positions the 740 g mass suits the compact, space-optimised housing. Designers also specify it for crane travelling-wheel mechanisms, relying on the 31 mm width and the published 110 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.