SL192328-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 SL192328-TB-XL-BR model number is decoded

envelope 140×300×102 mm with a 80.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 1410 kN and C0 1570 kN; with a C/C0 ratio of 0.90 the 102 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 250 kN, the limiting speed 1,470 r/min and the thermal reference speed 970 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 10.07 kN per millimetre of the 140 mm bore and 13.82 kN per millimetre of the 102 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 34.9 kg (34900 g) (1.14 g per mm² of the 300×102 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 140 mm bore this is among the largest catalogue sizes; the 1,470 r/min limiting speed confirms a slow-speed, extreme-load application such as a slewing or rolling-mill position Large SL1923 sizes in HR1 are typically the TB design with oxide-finished surfaces; the 34.9 kg mass reflects the thick, deformation-resistant rings At 1,470 r/min limiting speed the SL1923 is a slow-speed, high-load bearing — the cageless rollers trade kinematic speed for the 1410 kN dynamic rating The -XL suffix is the Schaeffler X-life mark: interchangeable envelope with the basic bearing, but higher load capacity and lower running temperature at the 1,470 r/min limit. Reading -TB: Schaeffler's enhanced-rib design for full-complement bearings; axial friction torque is reduced while radial ratings stay at 1410 kN C. 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 hydraulic pumps and radial piston pumps, marine and offshore winch arrangements and rolling-mill and steel-industry drives, where the 300 mm outside diameter and 1410 kN dynamic rating match the duty. In hydraulic pumps and radial piston pumps the unit fits a compact 140 mm seat, and in marine and offshore winch arrangements the 34.9 kg mass is part of the rotor inertia calculation. Designers also specify it for rolling-mill and steel-industry drives, relying on the 102 mm width and the published 1570 kN static rating. 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. Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• 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.
• Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.
• 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.