SL192348-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 SL192348-TB-BR model number is decoded

envelope 240×500×155 mm with a 130.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 2900 kN and C0 3800 kN; with a C/C0 ratio of 0.76 the 155 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 390 kN, the limiting speed 860 r/min and the thermal reference speed 500 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 12.08 kN per millimetre of the 240 mm bore and 18.71 kN per millimetre of the 155 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 142.3 kg (142300 g) (1.84 g per mm² of the 500×155 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 240 mm bore puts this execution at the top of the HR1 range — the 500 mm outside diameter, 155 mm width and 142.3 kg mass are built for primary-industry load cases Large SL1923 sizes in HR1 are typically the TB design with oxide-finished surfaces; the 142.3 kg mass reflects the thick, deformation-resistant rings At 860 r/min limiting speed the SL1923 is a slow-speed, high-load bearing — the cageless rollers trade kinematic speed for the 2900 kN dynamic rating TB-design bearings use revised roller-end curvature to protect the ribs under combined load — relevant at 240 mm bore where the semi-locating function carries real thrust. The -BR coating is a handling and storage protection; once mounted and greased, the 500 mm bearing operates to its normal 860 r/min limit. Typical applications include rolling-mill and steel-industry drives, hydraulic pumps and radial piston pumps and material handling conveyor pulleys, where the 500 mm outside diameter and 2900 kN dynamic rating match the duty. In rolling-mill and steel-industry drives the unit fits a compact 240 mm seat, and in hydraulic pumps and radial piston pumps the 142.3 kg mass is part of the rotor inertia calculation. Designers also specify it for material handling conveyor pulleys, relying on the 155 mm width and the published 3800 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.