SL192310-XL bearing: complete specifications & equivalents
The SL192310-XL is a ISO 15 radial bearing sized 50 x 110 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 | 50 mm |
| Outer diameter D | 110 mm |
| Width B | 40 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 232 kN |
| Basic static load rating C0 | 215 kN |
| Fatigue load limit Pu | 41 kN |
| Reference speed (thermal) | 2800 rpm |
| Limiting speed (mechanical) | 4200 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1810 g |
| Manufacturer designation | SL192310-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 | 1.969 in |
|---|---|
| Outer diameter D | 4.331 in |
| Width B | 1.575 in |
| ISO bore code | 10 |
| Radial section height (D−d)/2 | 30 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) | 6 of 29 |
| Bore above smallest sl1923-series size | 25 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL192310 | 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 SL192310-XL model number is decoded
envelope 50×110×40 mm with a 30.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 232 kN and C0 215 kN; with a C/C0 ratio of 1.08 the 40 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 41 kN, the limiting speed 4,200 r/min and the thermal reference speed 2,800 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 4.64 kN per millimetre of the 50 mm bore and 5.80 kN per millimetre of the 40 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 1.81 kg (1810 g) (0.41 g per mm² of the 110×40 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads 50 mm bore marks the medium range: mounting forces and fits become critical, and the 1810 g mass calls for proper induction or press tooling rather than hand fitting SL1923 bearings are semi-locating, with one outer-ring rib and two inner-ring ribs; the wide section delivers extreme C0 — 215 kN at 50 mm bore — for slow heavy positions Large SL1923 sizes in HR1 are typically the TB design with oxide-finished surfaces; the 1.81 kg mass reflects the thick, deformation-resistant rings X-life status (-XL) indicates the current Schaeffler premium execution at 50 mm bore; the 215 kN C0 rating reflects the improved rolling-contact geometry. Typical applications include planetary gear bearing positions, construction machinery slewing drives and compact slow-speed agitator drives, where the 110 mm outside diameter and 232 kN dynamic rating match the duty. In planetary gear bearing positions the unit fits a compact 50 mm seat, and in construction machinery slewing drives the 1.81 kg mass is part of the rotor inertia calculation. Designers also specify it for compact slow-speed agitator drives, relying on the 40 mm width and the published 215 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. The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
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.
- The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
- 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 SL192310-XL?
The SL192310-XL is a SL1923 single-row full-complement semi-locating cylindrical roller bearing with 110 mm outside diameter, 50 mm bore and 40 mm width, envelope 50×110×40 mm. Mass is 1.81 kg.
What does the SL192310-XL designation mean in the FAG/INA HR1 catalogue?
SL192310-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 50×110×40 mm and the catalogue ratings are C 232 kN, C0 215 kN, Cur 41 kN.
What is the load capacity of the SL192310-XL?
The basic dynamic load rating C is 232 kN and the basic static load rating C0 is 215 kN; the fatigue load limit Cur is 41 kN.
What is the maximum speed of the SL192310-XL?
The limiting speed is 4,200 r/min and the thermal reference speed is 2,800 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 SL192310-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.