SL192338-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 SL192338-TB-BR model number is decoded

envelope 190×400×132 mm with a 105.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 2220 kN and C0 2950 kN; with a C/C0 ratio of 0.75 the 132 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 320 kN, the limiting speed 1,090 r/min and the thermal reference speed 630 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 11.68 kN per millimetre of the 190 mm bore and 16.82 kN per millimetre of the 132 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 80.3 kg (80300 g) (1.52 g per mm² of the 400×132 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 190 mm bore this is among the largest catalogue sizes; the 1,090 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 At 1,090 r/min limiting speed the SL1923 is a slow-speed, high-load bearing — the cageless rollers trade kinematic speed for the 2220 kN dynamic rating -TB marks the TB execution with higher permissible axial load — the improved roller-end/rib lubrication film carries more thrust than the standard full-complement design. The -BR suffix gives the rings and rollers an oxide surface finish (black finish) that resists corrosion during storage, transport and mounting. Typical applications include marine and offshore winch arrangements, rope drums and winch drums and hydraulic pumps and radial piston pumps, where the 400 mm outside diameter and 2220 kN dynamic rating match the duty. In marine and offshore winch arrangements the unit fits a compact 190 mm seat, and in rope drums and winch drums the 80.3 kg mass is part of the rotor inertia calculation. Designers also specify it for hydraulic pumps and radial piston pumps, relying on the 132 mm width and the published 2950 kN static rating. 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.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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.
• 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.