SL014960 bearing: complete specifications & equivalents

The SL014960 is a ISO 15 radial bearing sized 300 x 420 x 118 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.

Bearing dimension schematic Front view shows outer diameter D and bore d; side section shows width B. D = 420 mm d = 300 B = 118 mm side section front view
Principal dimensions: bore d 300 mm, outer diameter D 420 mm, width B 118 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand FAG
Bore diameter d 300 mm
Outer diameter D 420 mm
Width B 118 mm
Material GCr15
Seal / shield open
Internal clearance CN
Tolerance class P0
Cage none
Basic dynamic load rating C 1630 kN
Basic static load rating C0 3700 kN
Fatigue load limit Pu 410 kN
Reference speed (thermal) 445 rpm
Limiting speed (mechanical) 870 rpm
Operating temperature -40 to +120 °C
Mass 53000 g
Manufacturer designation SL014960
Standard ISO 15
Catalog version HR1 2026-09-25
Last verified 2026-09-30

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.

Dimensions in inches & sl0149-series range

Bore d11.811 in
Outer diameter D16.535 in
Width B4.646 in
ISO bore code60
Radial section height (D−d)/260 mm
Smallest bore in sl0149-series60 mm
Largest outer diameter in sl0149-series540 mm
Width range across sl0149-series25–140 mm
Bore position in sl0149-series (smallest first)20 of 25
Bore above smallest sl0149-series size240 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
SL014960 ISO 15 full
Dimensions and internal design equivalent — standard interchange.
ISO 15 boundary-dimension envelope; standard interchange — confirm clearance class and precision with the supplier.

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 SL014960 model number is decoded

envelope 300×420×118 mm with a 60.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 1630 kN and C0 3700 kN; with a C/C0 ratio of 0.44 the 118 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 410 kN, the limiting speed 870 r/min and the thermal reference speed 445 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 5.43 kN per millimetre of the 300 mm bore and 13.81 kN per millimetre of the 118 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 53 kg (53000 g) (1.07 g per mm² of the 420×118 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 300 mm bore puts this execution at the top of the HR1 range — the 420 mm outside diameter, 118 mm width and 53 kg mass are built for primary-industry load cases SL0149 is the double-row full-complement locating bearing: it supports the radial load and axial loads in both directions, fixing the shaft axially at that position Inside the 300×420×118 mm envelope the two cageless rows provide C0 3700 kN, the capacity this series is selected for in heavy gearbox and drum positions Typical applications include hydraulic pumps and radial piston pumps, marine and offshore winch arrangements and rolling-mill and steel-industry drives, where the 420 mm outside diameter and 1630 kN dynamic rating match the duty. In hydraulic pumps and radial piston pumps the unit fits a compact 300 mm seat, and in marine and offshore winch arrangements the 53 kg mass is part of the rotor inertia calculation. Designers also specify it for rolling-mill and steel-industry drives, relying on the 118 mm width and the published 3700 kN static rating. Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease. There is no cage: do not apply caged-bearing speed rules — the printed limiting speed is a hard kinematic ceiling set by roller-to-roller contact.

Typical equipment & failure modes

Common applications

  • crane travelling-wheel mechanisms
  • material handling conveyor pulleys
  • heavy industrial gearbox shafts
  • vibrating and oscillating machinery

Known failure patterns

  • raceway pitting from overloaded slow-speed positions where the cageless rollers repeatedly stress one contact band
  • rib and roller-end scoring when applied axial thrust exceeds the semi-locating capacity
  • roller smearing from roller-to-roller sliding at speeds above the limiting value
  • edge loading and premature spalling caused by undetected shaft/housing misalignment (full-complement rows cannot self-align)
  • brinelling of the raceways from static shock during mounting or transport of the heavy rotor
  • lubricant starvation in the tightly packed roller set, especially in the double-row executions
  • freting and creep on a loose ring seat under a rotating load
  • contamination wear in open gearbox positions with damaged seals or breathers
  • false brinelling from micro-movement while the shaft is stationary under vibration

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.
  • There is no cage: do not apply caged-bearing speed rules — the printed limiting speed is a hard kinematic ceiling set by roller-to-roller contact.
  • 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.

Frequently asked questions

What are the dimensions of the SL014960?

The SL014960 is a SL0149 double-row full-complement locating cylindrical roller bearing with 420 mm outside diameter, 300 mm bore and 118 mm width, envelope 300×420×118 mm. Mass is 53 kg.

What does the SL014960 designation mean in the FAG/INA HR1 catalogue?

SL014960 identifies this SL0149 double-row full-complement locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 300×420×118 mm and the catalogue ratings are C 1630 kN, C0 3700 kN, Cur 410 kN.

What is the load capacity of the SL014960?

The basic dynamic load rating C is 1630 kN and the basic static load rating C0 is 3700 kN; the fatigue load limit Cur is 410 kN.

What is the maximum speed of the SL014960?

The limiting speed is 870 r/min and the thermal reference speed is 445 r/min. In the Schaeffler catalogue the reference speed is the thermally permissible running speed under defined load; the lower of the two values governs each application.

What is the locating function of the SL014960?

The SL0149 is a locating bearing: it fixes the shaft axially in both directions; pair it with a non-locating SL0249 at the other end to avoid binding.

Reviewed & verified by the MPN Base engineering desk against source catalog HR1 2026-09-25 on 2026-09-30. Read our editorial & correction policy.