SL192320-TB-XL-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 SL192320-TB-XL-BR model number is decoded

envelope 100×215×73 mm with a 57.5 mm radial section; every available circumferential space carries a roller because there is no cage C is 790 kN and C0 850 kN; with a C/C0 ratio of 0.93 the 73 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 150 kN, the limiting speed 2,110 r/min and the thermal reference speed 1,490 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 7.90 kN per millimetre of the 100 mm bore and 10.82 kN per millimetre of the 73 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 13 kg (13000 g) (0.83 g per mm² of the 215×73 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 100 mm bore the 215 mm outside diameter and 73 mm width target rolling stands, construction machinery and heavy gearboxes; the limiting speed drops to 2,110 r/min 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 2,110 r/min limiting speed the SL1923 is a slow-speed, high-load bearing — the cageless rollers trade kinematic speed for the 790 kN dynamic rating As an X-life (-XL) bearing it benefits from the optimised surface finish that reduces friction and raises the fatigue strength behind the 150 kN Cur value. Reading -TB: Schaeffler's enhanced-rib design for full-complement bearings; axial friction torque is reduced while radial ratings stay at 790 kN C. BR-finished surfaces tolerate damp assembly environments better than bare steel, which matters for the large 13 kg industrial executions. Typical applications include vibrating and oscillating machinery, heavy industrial gearbox shafts and rope drums and winch drums, where the 215 mm outside diameter and 790 kN dynamic rating match the duty. In vibrating and oscillating machinery the unit fits a compact 100 mm seat, and in heavy industrial gearbox shafts the 13 kg mass is part of the rotor inertia calculation. Designers also specify it for rope drums and winch drums, relying on the 73 mm width and the published 850 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.