SL192340-TB-BR 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 SL192340-TB-BR model number is decoded

envelope 200×420×138 mm with a 110.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 2470 kN and C0 3300 kN; with a C/C0 ratio of 0.75 the 138 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 350 kN, the limiting speed 1,020 r/min and the thermal reference speed 570 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 12.35 kN per millimetre of the 200 mm bore and 17.90 kN per millimetre of the 138 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 92.1 kg (92100 g) (1.59 g per mm² of the 420×138 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 200 mm bore this is among the largest catalogue sizes; the 1,020 r/min limiting speed confirms a slow-speed, extreme-load application such as a slewing or rolling-mill position Reading SL1923: full-complement roller set, no cage, self-guided rollers; the wide envelope is chosen where a narrow-section bearing would fit radially but lacks load capacity SL1923 bearings are semi-locating, with one outer-ring rib and two inner-ring ribs; the wide section delivers extreme C0 — 3300 kN at 200 mm bore — for slow heavy positions The -TB suffix denotes the increased axial-load design: profiled roller ends and optimised rib contact geometry lower edge stress and friction at the guide ribs. -BR marks the oxide-treated execution: the thin black conversion coating protects the 2470 kN-rated bearing before it enters lubricated service. Typical applications include construction machinery slewing drives, material handling conveyor pulleys and planetary gear bearing positions, where the 420 mm outside diameter and 2470 kN dynamic rating match the duty. In construction machinery slewing drives the unit fits a compact 200 mm seat, and in material handling conveyor pulleys the 92.1 kg mass is part of the rotor inertia calculation. Designers also specify it for planetary gear bearing positions, relying on the 138 mm width and the published 3300 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. 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.

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