SL182964-TB 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 SL182964-TB model number is decoded

envelope 320×440×72 mm with a 60.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 1210 kN and C0 2340 kN; with a C/C0 ratio of 0.52 the 72 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 260 kN, the limiting speed 820 r/min and the thermal reference speed 495 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 3.78 kN per millimetre of the 320 mm bore and 16.81 kN per millimetre of the 72 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 32.9 kg (32900 g) (1.04 g per mm² of the 440×72 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 320 mm bore this is among the largest catalogue sizes; the 820 r/min limiting speed confirms a slow-speed, extreme-load application such as a slewing or rolling-mill position The dimension-series digits place this bearing in the SL18 section of the HR1 plan, giving the 60.0 mm section height between the 320 mm bore and the 440 mm outside diameter High radial rigidity at 1210 kN C is the point of this design: rib-guided rollers in a cageless pack resist deflection in planetary gears, rope drums and vibrating machinery TB-design bearings use revised roller-end curvature to protect the ribs under combined load — relevant at 320 mm bore where the semi-locating function carries real thrust. Typical applications include heavy industrial gearbox shafts, crane travelling-wheel mechanisms and vibrating and oscillating machinery, where the 440 mm outside diameter and 1210 kN dynamic rating match the duty. In heavy industrial gearbox shafts the unit fits a compact 320 mm seat, and in crane travelling-wheel mechanisms the 32.9 kg mass is part of the rotor inertia calculation. Designers also specify it for vibrating and oscillating machinery, relying on the 72 mm width and the published 2340 kN static rating. C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film. Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.
• Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.
• 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.