SL182207-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 SL182207-XL model number is decoded

envelope 35×72×23 mm with a 18.5 mm radial section; every available circumferential space carries a roller because there is no cage C is 88 kN and C0 78 kN; with a C/C0 ratio of 1.13 the 23 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 12.9 kN, the limiting speed 6,400 r/min and the thermal reference speed 4,250 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 2.51 kN per millimetre of the 35 mm bore and 3.83 kN per millimetre of the 23 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 440 g (0.27 g per mm² of the 72×23 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 35 mm bore places this bearing in the medium band, where the 72 mm envelope already carries ratings in the tens of kilonewtons The dimension-series digits place this bearing in the SL18 section of the HR1 plan, giving the 18.5 mm section height between the 35 mm bore and the 72 mm outside diameter Reading the designation: SL18 marks the Schaeffler full-complement semi-locating type with one rib on the outer ring and two ribs on the inner ring; the rollers are axially guided by the inner ring while the outer ring can displace by the catalogue s-value -XL means this is an X-life bearing — Schaeffler's upgraded performance level with smoother raceways, so the 88 kN C rating and longer nominal life come without an envelope change. Typical applications include material handling conveyor pulleys, rolling-mill and steel-industry drives and construction machinery slewing drives, where the 72 mm outside diameter and 88 kN dynamic rating match the duty. In material handling conveyor pulleys the unit fits a compact 35 mm seat, and in rolling-mill and steel-industry drives the 440 g mass suits the compact, space-optimised housing. Designers also specify it for construction machinery slewing drives, relying on the 23 mm width and the published 78 kN static rating. 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. 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

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