SL183064-TB 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 SL183064-TB model number is decoded

envelope 320×480×121 mm with a 80.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 2080 kN and C0 3450 kN; with a C/C0 ratio of 0.60 the 121 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 770 r/min and the thermal reference speed 480 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 6.50 kN per millimetre of the 320 mm bore and 17.19 kN per millimetre of the 121 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 71.7 kg (71700 g) (1.23 g per mm² of the 480×121 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 320 mm bore puts this execution at the top of the HR1 range — the 480 mm outside diameter, 121 mm width and 71.7 kg mass are built for primary-industry load cases The semi-locating function means this bearing locates the shaft in one axial direction and floats in the other — useful in two-bearing shafts where one position is fixed and the other absorbs expansion SL18 bearings are separable for mounting: the inner ring with the self-retained roller set can be fitted separately from the plain-bored outer ring, which simplifies interference-fit assembly TB-design bearings use revised roller-end curvature to protect the ribs under combined load — relevant at 320 mm bore where the semi-locating function carries real thrust. Typical applications include rolling-mill and steel-industry drives, hydraulic pumps and radial piston pumps and material handling conveyor pulleys, where the 480 mm outside diameter and 2080 kN dynamic rating match the duty. In rolling-mill and steel-industry drives the unit fits a compact 320 mm seat, and in hydraulic pumps and radial piston pumps the 71.7 kg mass is part of the rotor inertia calculation. Designers also specify it for material handling conveyor pulleys, relying on the 121 mm width and the published 3450 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.