SL182984-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 SL182984-TB model number is decoded

envelope 420×560×82 mm with a 70.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 1730 kN and C0 3600 kN; with a C/C0 ratio of 0.48 the 82 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 370 kN, the limiting speed 630 r/min and the thermal reference speed 340 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 4.12 kN per millimetre of the 420 mm bore and 21.10 kN per millimetre of the 82 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 56.9 kg (56900 g) (1.24 g per mm² of the 560×82 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 420 mm bore this is among the largest catalogue sizes; the 630 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 70.0 mm section height between the 420 mm bore and the 560 mm outside diameter Reading -TB: Schaeffler's enhanced-rib design for full-complement bearings; axial friction torque is reduced while radial ratings stay at 1730 kN C. Typical applications include material handling conveyor pulleys, rolling-mill and steel-industry drives and construction machinery slewing drives, where the 560 mm outside diameter and 1730 kN dynamic rating match the duty. In material handling conveyor pulleys the unit fits a compact 420 mm seat, and in rolling-mill and steel-industry drives the 56.9 kg mass is part of the rotor inertia calculation. Designers also specify it for construction machinery slewing drives, relying on the 82 mm width and the published 3600 kN static rating. 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. 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

• 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.
• 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.