SL014952 bearing: complete specifications & equivalents
The SL014952 is a ISO 15 radial bearing sized 260 x 360 x 100 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 260 mm |
| Outer diameter D | 360 mm |
| Width B | 100 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 1100 kN |
| Basic static load rating C0 | 2470 kN |
| Fatigue load limit Pu | 285 kN |
| Reference speed (thermal) | 570 rpm |
| Limiting speed (mechanical) | 1010 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 32000 g |
| Manufacturer designation | SL014952 |
| 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 | 10.236 in |
|---|---|
| Outer diameter D | 14.173 in |
| Width B | 3.937 in |
| ISO bore code | 52 |
| Radial section height (D−d)/2 | 50 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) | 18 of 25 |
| Bore above smallest sl0149-series size | 200 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL014952 | 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 SL014952 model number is decoded
envelope 260×360×100 mm with a 50.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 1100 kN and C0 2470 kN; with a C/C0 ratio of 0.45 the 100 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 285 kN, the limiting speed 1,010 r/min and the thermal reference speed 570 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 4.23 kN per millimetre of the 260 mm bore and 11.00 kN per millimetre of the 100 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 32 kg (32000 g) (0.89 g per mm² of the 360×100 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 260 mm bore this is among the largest catalogue sizes; the 1,010 r/min limiting speed confirms a slow-speed, extreme-load application such as a slewing or rolling-mill position Reading SL0149: the DIN 5412-9 type code family NNC49, double-row full complement with split outer ring; the joining retaining rings must not be used to transmit axial force Typical applications include planetary gear bearing positions, construction machinery slewing drives and compact slow-speed agitator drives, where the 360 mm outside diameter and 1100 kN dynamic rating match the duty. In planetary gear bearing positions the unit fits a compact 260 mm seat, and in construction machinery slewing drives the 32 kg mass is part of the rotor inertia calculation. Designers also specify it for compact slow-speed agitator drives, relying on the 100 mm width and the published 2470 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 split outer ring of SL0149 is joined by retaining rings for handling only; never use those rings as a thrust face in the design.
Typical equipment & failure modes
Common applications
- heavy industrial gearbox shafts
- construction machinery slewing drives
- vibrating and oscillating machinery
- rope drums and winch drums
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 split outer ring of SL0149 is joined by retaining rings for handling only; never use those rings as a thrust face in the design.
- Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.
Frequently asked questions
What are the dimensions of the SL014952?
The SL014952 is a SL0149 double-row full-complement locating cylindrical roller bearing with 360 mm outside diameter, 260 mm bore and 100 mm width, envelope 260×360×100 mm. Mass is 32 kg.
What does the SL014952 designation mean in the FAG/INA HR1 catalogue?
SL014952 identifies this SL0149 double-row full-complement locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 260×360×100 mm and the catalogue ratings are C 1100 kN, C0 2470 kN, Cur 285 kN.
What is the load capacity of the SL014952?
The basic dynamic load rating C is 1100 kN and the basic static load rating C0 is 2470 kN; the fatigue load limit Cur is 285 kN.
What is the maximum speed of the SL014952?
The limiting speed is 1,010 r/min and the thermal reference speed is 570 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 SL014952?
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.