SL192317-XL bearing: complete specifications & equivalents
The SL192317-XL is a ISO 15 radial bearing sized 85 x 180 x 60 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 85 mm |
| Outer diameter D | 180 mm |
| Width B | 60 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 570 kN |
| Basic static load rating C0 | 610 kN |
| Fatigue load limit Pu | 108 kN |
| Reference speed (thermal) | 1710 rpm |
| Limiting speed (mechanical) | 2410 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 7340 g |
| Manufacturer designation | SL192317-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 | 3.346 in |
|---|---|
| Outer diameter D | 7.087 in |
| Width B | 2.362 in |
| ISO bore code | 17 |
| Radial section height (D−d)/2 | 47.5 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) | 13 of 29 |
| Bore above smallest sl1923-series size | 60 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL192317 | 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 SL192317-XL model number is decoded
envelope 85×180×60 mm with a 47.5 mm radial section; every available circumferential space carries a roller because there is no cage C is 570 kN and C0 610 kN; with a C/C0 ratio of 0.93 the 60 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 108 kN, the limiting speed 2,410 r/min and the thermal reference speed 1,710 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 6.71 kN per millimetre of the 85 mm bore and 9.50 kN per millimetre of the 60 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 7.34 kg (7340 g) (0.68 g per mm² of the 180×60 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 85 mm bore the 180 mm outside diameter and 60 mm width target rolling stands, construction machinery and heavy gearboxes; the limiting speed drops to 2,410 r/min Reading SL1923: full-complement roller set, no cage, self-guided rollers; the wide envelope is chosen where a narrow-section bearing would fit radially but lacks load capacity The separable inner-ring/roller assembly and the single-flanged outer ring allow this bearing to be used as the floating or one-direction-locating position in a two-bearing shaft system -XL means this is an X-life bearing — Schaeffler's upgraded performance level with smoother raceways, so the 570 kN C rating and longer nominal life come without an envelope change. Typical applications include marine and offshore winch arrangements, rope drums and winch drums and hydraulic pumps and radial piston pumps, where the 180 mm outside diameter and 570 kN dynamic rating match the duty. In marine and offshore winch arrangements the unit fits a compact 85 mm seat, and in rope drums and winch drums the 7.34 kg mass is part of the rotor inertia calculation. Designers also specify it for hydraulic pumps and radial piston pumps, relying on the 60 mm width and the published 610 kN static rating. 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. 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.
Typical equipment & failure modes
Common applications
- material handling conveyor pulleys
- rope drums and winch drums
- construction machinery slewing drives
- planetary gear bearing positions
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
- 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.
- 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.
- 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 SL192317-XL?
The SL192317-XL is a SL1923 single-row full-complement semi-locating cylindrical roller bearing with 180 mm outside diameter, 85 mm bore and 60 mm width, envelope 85×180×60 mm. Mass is 7.34 kg.
What does the SL192317-XL designation mean in the FAG/INA HR1 catalogue?
SL192317-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 85×180×60 mm and the catalogue ratings are C 570 kN, C0 610 kN, Cur 108 kN.
What is the load capacity of the SL192317-XL?
The basic dynamic load rating C is 570 kN and the basic static load rating C0 is 610 kN; the fatigue load limit Cur is 108 kN.
What is the maximum speed of the SL192317-XL?
The limiting speed is 2,410 r/min and the thermal reference speed is 1,710 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 SL192317-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.