SL182934-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 SL182934-XL model number is decoded

envelope 170×230×36 mm with a 30.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 365 kN and C0 540 kN; with a C/C0 ratio of 0.68 the 36 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 85 kN, the limiting speed 1,590 r/min and the thermal reference speed 1,190 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 2.15 kN per millimetre of the 170 mm bore and 10.14 kN per millimetre of the 36 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 4.3 kg (4300 g) (0.52 g per mm² of the 230×36 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads 170 mm bore, 230 mm outside diameter: at this size the 540 kN C0 rating and rigid full-complement pack replace multi-bearing arrangements in compact heavy-duty designs SL182934-XL is a single-row full-complement cylindrical roller bearing: no cage is fitted, so the maximum number of rollers runs between the rings, and the rollers guide themselves on the two inner-ring ribs 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 X-life status (-XL) indicates the current Schaeffler premium execution at 170 mm bore; the 540 kN C0 rating reflects the improved rolling-contact geometry. Typical applications include compact slow-speed agitator drives, planetary gear bearing positions and crane travelling-wheel mechanisms, where the 230 mm outside diameter and 365 kN dynamic rating match the duty. In compact slow-speed agitator drives the unit fits a compact 170 mm seat, and in planetary gear bearing positions the 4.3 kg mass is part of the rotor inertia calculation. Designers also specify it for crane travelling-wheel mechanisms, relying on the 36 mm width and the published 540 kN static rating. Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease. 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.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.
• 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.
• 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.