SL014940 bearing: complete specifications & equivalents
The SL014940 is a ISO 15 radial bearing sized 200 x 280 x 80 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 200 mm |
| Outer diameter D | 280 mm |
| Width B | 80 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 680 kN |
| Basic static load rating C0 | 1440 kN |
| Fatigue load limit Pu | 176 kN |
| Reference speed (thermal) | 820 rpm |
| Limiting speed (mechanical) | 1310 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 15800 g |
| Manufacturer designation | SL014940 |
| 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 d | 7.874 in |
|---|---|
| Outer diameter D | 11.024 in |
| Width B | 3.15 in |
| ISO bore code | 40 |
| Radial section height (D−d)/2 | 40 mm |
| Smallest bore in sl0149-series | 60 mm |
| Largest outer diameter in sl0149-series | 540 mm |
| Width range across sl0149-series | 25–140 mm |
| Bore position in sl0149-series (smallest first) | 15 of 25 |
| Bore above smallest sl0149-series size | 140 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL014940 | 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 SL014940 model number is decoded
envelope 200×280×80 mm with a 40.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 680 kN and C0 1440 kN; with a C/C0 ratio of 0.47 the 80 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 176 kN, the limiting speed 1,310 r/min and the thermal reference speed 820 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 3.40 kN per millimetre of the 200 mm bore and 8.50 kN per millimetre of the 80 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 15.8 kg (15800 g) (0.71 g per mm² of the 280×80 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 200 mm bore this is among the largest catalogue sizes; the 1,310 r/min limiting speed confirms a slow-speed, extreme-load application such as a slewing or rolling-mill position The locating structure has an axially split outer ring with ribs on both sides, joined by retaining rings, and an inner ring with a centre rib — the 80 mm width houses two complete roller rows Typical applications include rolling-mill and steel-industry drives, hydraulic pumps and radial piston pumps and material handling conveyor pulleys, where the 280 mm outside diameter and 680 kN dynamic rating match the duty. In rolling-mill and steel-industry drives the unit fits a compact 200 mm seat, and in hydraulic pumps and radial piston pumps the 15.8 kg mass is part of the rotor inertia calculation. Designers also specify it for material handling conveyor pulleys, relying on the 80 mm width and the published 1440 kN static rating. 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. The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
Typical equipment & failure modes
Common applications
- vibrating and oscillating machinery
- planetary gear bearing positions
- rope drums and winch drums
- marine and offshore winch arrangements
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
- 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.
- The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
- 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.
Frequently asked questions
What are the dimensions of the SL014940?
The SL014940 is a SL0149 double-row full-complement locating cylindrical roller bearing with 280 mm outside diameter, 200 mm bore and 80 mm width, envelope 200×280×80 mm. Mass is 15.8 kg.
What does the SL014940 designation mean in the FAG/INA HR1 catalogue?
SL014940 identifies this SL0149 double-row full-complement locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 200×280×80 mm and the catalogue ratings are C 680 kN, C0 1440 kN, Cur 176 kN.
What is the load capacity of the SL014940?
The basic dynamic load rating C is 680 kN and the basic static load rating C0 is 1440 kN; the fatigue load limit Cur is 176 kN.
What is the maximum speed of the SL014940?
The limiting speed is 1,310 r/min and the thermal reference speed is 820 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 SL014940?
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.