SL014920 bearing: complete specifications & equivalents
The SL014920 is a ISO 15 radial bearing sized 100 x 140 x 40 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 100 mm |
| Outer diameter D | 140 mm |
| Width B | 40 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 191 kN |
| Basic static load rating C0 | 370 kN |
| Fatigue load limit Pu | 48.5 kN |
| Reference speed (thermal) | 1720 rpm |
| Limiting speed (mechanical) | 2700 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1950 g |
| Manufacturer designation | SL014920 |
| 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 | 3.937 in |
|---|---|
| Outer diameter D | 5.512 in |
| Width B | 1.575 in |
| ISO bore code | 20 |
| Radial section height (D−d)/2 | 20 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) | 5 of 25 |
| Bore above smallest sl0149-series size | 40 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL014920 | 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 SL014920 model number is decoded
envelope 100×140×40 mm with a 20.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 191 kN and C0 370 kN; with a C/C0 ratio of 0.52 the 40 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 48.5 kN, the limiting speed 2,700 r/min and the thermal reference speed 1,720 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 1.91 kN per millimetre of the 100 mm bore and 4.78 kN per millimetre of the 40 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 1.95 kg (1950 g) (0.35 g per mm² of the 140×40 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads with a 100 mm bore this is a heavy-industrial bearing: 1.95 kg of stiff ring and roller set, specified where rigidity matters more than speed As the fixed (locating) bearing it takes the thermal-expansion thrust from the shaft while the paired floating bearing moves; the limiting speed here is 2,700 r/min Inside the 100×140×40 mm envelope the two cageless rows provide C0 370 kN, the capacity this series is selected for in heavy gearbox and drum positions Typical applications include material handling conveyor pulleys, rolling-mill and steel-industry drives and construction machinery slewing drives, where the 140 mm outside diameter and 191 kN dynamic rating match the duty. In material handling conveyor pulleys the unit fits a compact 100 mm seat, and in rolling-mill and steel-industry drives the 1.95 kg mass is part of the rotor inertia calculation. Designers also specify it for construction machinery slewing drives, relying on the 40 mm width and the published 370 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. 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.
Typical equipment & failure modes
Common applications
- compact slow-speed agitator drives
- rolling-mill and steel-industry drives
- crane travelling-wheel mechanisms
- heavy industrial gearbox shafts
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
- 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.
- C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.
Frequently asked questions
What are the dimensions of the SL014920?
The SL014920 is a SL0149 double-row full-complement locating cylindrical roller bearing with 140 mm outside diameter, 100 mm bore and 40 mm width, envelope 100×140×40 mm. Mass is 1.95 kg.
What does the SL014920 designation mean in the FAG/INA HR1 catalogue?
SL014920 identifies this SL0149 double-row full-complement locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 100×140×40 mm and the catalogue ratings are C 191 kN, C0 370 kN, Cur 48.5 kN.
What is the load capacity of the SL014920?
The basic dynamic load rating C is 191 kN and the basic static load rating C0 is 370 kN; the fatigue load limit Cur is 48.5 kN.
What is the maximum speed of the SL014920?
The limiting speed is 2,700 r/min and the thermal reference speed is 1,720 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 SL014920?
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.