SL183052-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 SL183052-TB model number is decoded

envelope 260×400×104 mm with a 70.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 1600 kN and C0 2500 kN; with a C/C0 ratio of 0.64 the 104 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 290 kN, the limiting speed 940 r/min and the thermal reference speed 620 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 6.15 kN per millimetre of the 260 mm bore and 15.38 kN per millimetre of the 104 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 44.5 kg (44500 g) (1.07 g per mm² of the 400×104 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 260 mm bore puts this execution at the top of the HR1 range — the 400 mm outside diameter, 104 mm width and 44.5 kg mass are built for primary-industry load cases The dimension-series digits place this bearing in the SL18 section of the HR1 plan, giving the 70.0 mm section height between the 260 mm bore and the 400 mm outside diameter SL18 bearings are separable for mounting: the inner ring with the self-retained roller set can be fitted separately from the plain-bored outer ring, which simplifies interference-fit assembly The -TB feature concerns the rib contact, not the envelope: the 260×400×104 mm dimensions and 44.5 kg mass follow the standard series plan. Typical applications include rolling-mill and steel-industry drives, hydraulic pumps and radial piston pumps and material handling conveyor pulleys, where the 400 mm outside diameter and 1600 kN dynamic rating match the duty. In rolling-mill and steel-industry drives the unit fits a compact 260 mm seat, and in hydraulic pumps and radial piston pumps the 44.5 kg mass is part of the rotor inertia calculation. Designers also specify it for material handling conveyor pulleys, relying on the 104 mm width and the published 2500 kN static rating. The split outer ring of SL0149 is joined by retaining rings for handling only; never use those rings as a thrust face in the design. 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

• The split outer ring of SL0149 is joined by retaining rings for handling only; never use those rings as a thrust face in the design.
• C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.
• 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.