SL192305-XL bearing: complete specifications & equivalents
The SL192305-XL is a ISO 15 radial bearing sized 25 x 62 x 24 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 25 mm |
| Outer diameter D | 62 mm |
| Width B | 24 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 73 kN |
| Basic static load rating C0 | 59 kN |
| Fatigue load limit Pu | 9.6 kN |
| Reference speed (thermal) | 4800 rpm |
| Limiting speed (mechanical) | 8100 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 370 g |
| Manufacturer designation | SL192305-XL |
| 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 & sl1923-series range
| Bore d | 0.984 in |
|---|---|
| Outer diameter D | 2.441 in |
| Width B | 0.945 in |
| ISO bore code | 05 |
| Radial section height (D−d)/2 | 18.5 mm |
| Smallest bore in sl1923-series | 25 mm |
| Largest outer diameter in sl1923-series | 540 mm |
| Width range across sl1923-series | 24–165 mm |
| Bore position in sl1923-series (smallest first) | 1 of 29 |
| Bore above smallest sl1923-series size | 0 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL192305 | 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 SL192305-XL model number is decoded
envelope 25×62×24 mm with a 18.5 mm radial section; every available circumferential space carries a roller because there is no cage C is 73 kN and C0 59 kN; with a C/C0 ratio of 1.24 the 24 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 9.6 kN, the limiting speed 8,100 r/min and the thermal reference speed 4,800 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 2.92 kN per millimetre of the 25 mm bore and 3.04 kN per millimetre of the 24 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 370 g (0.25 g per mm² of the 62×24 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 25 mm bore this size balances the 62 mm outside diameter against machineability of the adjacent parts — the most frequently specified band in the HR1 range The 24 mm width versus 62 mm outside diameter gives this series its characteristic squat proportions and high tipping rigidity under eccentric loads As an X-life (-XL) bearing it benefits from the optimised surface finish that reduces friction and raises the fatigue strength behind the 9.6 kN Cur value. Typical applications include marine and offshore winch arrangements, rope drums and winch drums and hydraulic pumps and radial piston pumps, where the 62 mm outside diameter and 73 kN dynamic rating match the duty. In marine and offshore winch arrangements the unit fits a compact 25 mm seat, and in rope drums and winch drums the 370 g mass suits the compact, space-optimised housing. Designers also specify it for hydraulic pumps and radial piston pumps, relying on the 24 mm width and the published 59 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
- planetary gear bearing positions
- hydraulic pumps and radial piston pumps
- compact slow-speed agitator drives
- crane travelling-wheel mechanisms
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 SL192305-XL?
The SL192305-XL is a SL1923 single-row full-complement semi-locating cylindrical roller bearing with 62 mm outside diameter, 25 mm bore and 24 mm width, envelope 25×62×24 mm. Mass is 370 g.
What does the SL192305-XL designation mean in the FAG/INA HR1 catalogue?
SL192305-XL identifies this SL1923 single-row full-complement semi-locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue; the -XL suffix marks the X-life execution. The envelope is 25×62×24 mm and the catalogue ratings are C 73 kN, C0 59 kN, Cur 9.6 kN.
What is the load capacity of the SL192305-XL?
The basic dynamic load rating C is 73 kN and the basic static load rating C0 is 59 kN; the fatigue load limit Cur is 9.6 kN.
What is the maximum speed of the SL192305-XL?
The limiting speed is 8,100 r/min and the thermal reference speed is 4,800 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 SL192305-XL?
This is a semi-locating bearing: it locates the shaft in one axial direction and floats in the other, and should be paired with a non-locating or locating bearing accordingly.
Reviewed & verified by the MPN Base engineering desk against source catalog HR1 2026-09-25 on 2026-09-30. Read our editorial & correction policy.