SL182238 bearing: complete specifications & equivalents
The SL182238 is a ISO 15 radial bearing sized 190 x 340 x 92 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 190 mm |
| Outer diameter D | 340 mm |
| Width B | 92 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 1300 kN |
| Basic static load rating C0 | 1900 kN |
| Fatigue load limit Pu | 232 kN |
| Reference speed (thermal) | 770 rpm |
| Limiting speed (mechanical) | 1170 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 35650 g |
| Manufacturer designation | SL182238 |
| 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 & sl1822-series range
| Bore d | 7.48 in |
|---|---|
| Outer diameter D | 13.386 in |
| Width B | 3.622 in |
| ISO bore code | 38 |
| Radial section height (D−d)/2 | 75 mm |
| Smallest bore in sl1822-series | 20 mm |
| Largest outer diameter in sl1822-series | 360 mm |
| Width range across sl1822-series | 18–98 mm |
| Bore position in sl1822-series (smallest first) | 26 of 27 |
| Bore above smallest sl1822-series size | 170 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL182238 | 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 SL182238 model number is decoded
envelope 190×340×92 mm with a 75.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 1300 kN and C0 1900 kN; with a C/C0 ratio of 0.68 the 92 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 232 kN, the limiting speed 1,170 r/min and the thermal reference speed 770 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 6.84 kN per millimetre of the 190 mm bore and 14.13 kN per millimetre of the 92 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 35.65 kg (35650 g) (1.14 g per mm² of the 340×92 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 190 mm bore this is among the largest catalogue sizes; the 1,170 r/min limiting speed confirms a slow-speed, extreme-load application such as a slewing or rolling-mill position SL182238 is a single-row full-complement cylindrical roller bearing: no cage is fitted, so the maximum number of rollers runs between the rings, and the rollers guide themselves on the two inner-ring ribs Reading the designation: SL18 marks the Schaeffler full-complement semi-locating type with one rib on the outer ring and two ribs on the inner ring; the rollers are axially guided by the inner ring while the outer ring can displace by the catalogue s-value Typical applications include heavy industrial gearbox shafts, crane travelling-wheel mechanisms and vibrating and oscillating machinery, where the 340 mm outside diameter and 1300 kN dynamic rating match the duty. In heavy industrial gearbox shafts the unit fits a compact 190 mm seat, and in crane travelling-wheel mechanisms the 35.65 kg mass is part of the rotor inertia calculation. Designers also specify it for vibrating and oscillating machinery, relying on the 92 mm width and the published 1900 kN static rating. C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film. 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.
Typical equipment & failure modes
Common applications
- vibrating and oscillating machinery
- planetary gear bearing positions
- rope drums and winch drums
- marine and offshore winch arrangements
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
- C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.
- 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.
- The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
Frequently asked questions
What are the dimensions of the SL182238?
The SL182238 is a SL1822 single-row full-complement semi-locating cylindrical roller bearing with 340 mm outside diameter, 190 mm bore and 92 mm width, envelope 190×340×92 mm. Mass is 35.65 kg.
What does the SL182238 designation mean in the FAG/INA HR1 catalogue?
SL182238 identifies this SL1822 single-row full-complement semi-locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 190×340×92 mm and the catalogue ratings are C 1300 kN, C0 1900 kN, Cur 232 kN.
What is the load capacity of the SL182238?
The basic dynamic load rating C is 1300 kN and the basic static load rating C0 is 1900 kN; the fatigue load limit Cur is 232 kN.
What is the maximum speed of the SL182238?
The limiting speed is 1,170 r/min and the thermal reference speed is 770 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 SL182238?
This is a semi-locating bearing: one rib on the outer ring and two on the inner ring guide the shaft axially in one direction, while the other direction is free for thermal expansion.
Reviewed & verified by the MPN Base engineering desk against source catalog HR1 2026-09-25 on 2026-09-30. Read our editorial & correction policy.