SL192315-XL bearing: complete specifications & equivalents
The SL192315-XL is a ISO 15 radial bearing sized 75 x 160 x 55 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 75 mm |
| Outer diameter D | 160 mm |
| Width B | 55 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 460 kN |
| Basic static load rating C0 | 465 kN |
| Fatigue load limit Pu | 88 kN |
| Reference speed (thermal) | 2000 rpm |
| Limiting speed (mechanical) | 2800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 5300 g |
| Manufacturer designation | SL192315-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 | 2.953 in |
|---|---|
| Outer diameter D | 6.299 in |
| Width B | 2.165 in |
| ISO bore code | 15 |
| Radial section height (D−d)/2 | 42.5 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) | 11 of 29 |
| Bore above smallest sl1923-series size | 50 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL192315 | 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 SL192315-XL model number is decoded
envelope 75×160×55 mm with a 42.5 mm radial section; every available circumferential space carries a roller because there is no cage C is 460 kN and C0 465 kN; with a C/C0 ratio of 0.99 the 55 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 88 kN, the limiting speed 2,800 r/min and the thermal reference speed 2,000 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 6.13 kN per millimetre of the 75 mm bore and 8.36 kN per millimetre of the 55 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 5.3 kg (5300 g) (0.60 g per mm² of the 160×55 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 75 mm bore the 160 mm outside diameter and 55 mm width target rolling stands, construction machinery and heavy gearboxes; the limiting speed drops to 2,800 r/min SL1923 bearings are semi-locating, with one outer-ring rib and two inner-ring ribs; the wide section delivers extreme C0 — 465 kN at 75 mm bore — for slow heavy positions As an X-life (-XL) bearing it benefits from the optimised surface finish that reduces friction and raises the fatigue strength behind the 88 kN Cur value. Typical applications include hydraulic pumps and radial piston pumps, marine and offshore winch arrangements and rolling-mill and steel-industry drives, where the 160 mm outside diameter and 460 kN dynamic rating match the duty. In hydraulic pumps and radial piston pumps the unit fits a compact 75 mm seat, and in marine and offshore winch arrangements the 5.3 kg mass is part of the rotor inertia calculation. Designers also specify it for rolling-mill and steel-industry drives, relying on the 55 mm width and the published 465 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
- 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
- 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 SL192315-XL?
The SL192315-XL is a SL1923 single-row full-complement semi-locating cylindrical roller bearing with 160 mm outside diameter, 75 mm bore and 55 mm width, envelope 75×160×55 mm. Mass is 5.3 kg.
What does the SL192315-XL designation mean in the FAG/INA HR1 catalogue?
SL192315-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 75×160×55 mm and the catalogue ratings are C 460 kN, C0 465 kN, Cur 88 kN.
What is the load capacity of the SL192315-XL?
The basic dynamic load rating C is 460 kN and the basic static load rating C0 is 465 kN; the fatigue load limit Cur is 88 kN.
What is the maximum speed of the SL192315-XL?
The limiting speed is 2,800 r/min and the thermal reference speed is 2,000 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 SL192315-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.