SL182224 bearing: complete specifications & equivalents
The SL182224 is a ISO 15 radial bearing sized 120 x 215 x 58 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 120 mm |
| Outer diameter D | 215 mm |
| Width B | 58 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 530 kN |
| Basic static load rating C0 | 720 kN |
| Fatigue load limit Pu | 100 kN |
| Reference speed (thermal) | 1500 rpm |
| Limiting speed (mechanical) | 1930 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 9080 g |
| Manufacturer designation | SL182224 |
| 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 | 4.724 in |
|---|---|
| Outer diameter D | 8.465 in |
| Width B | 2.283 in |
| ISO bore code | 24 |
| Radial section height (D−d)/2 | 47.5 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) | 19 of 27 |
| Bore above smallest sl1822-series size | 100 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL182224 | 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 SL182224 model number is decoded
envelope 120×215×58 mm with a 47.5 mm radial section; every available circumferential space carries a roller because there is no cage C is 530 kN and C0 720 kN; with a C/C0 ratio of 0.74 the 58 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 100 kN, the limiting speed 1,930 r/min and the thermal reference speed 1,500 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 4.42 kN per millimetre of the 120 mm bore and 9.14 kN per millimetre of the 58 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 9.08 kg (9080 g) (0.73 g per mm² of the 215×58 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads with a 120 mm bore this is a heavy-industrial bearing: 9.08 kg of stiff ring and roller set, specified where rigidity matters more than speed The dimension-series digits place this bearing in the SL18 section of the HR1 plan, giving the 47.5 mm section height between the 120 mm bore and the 215 mm outside diameter SL182224 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 Typical applications include crane travelling-wheel mechanisms, compact slow-speed agitator drives and heavy industrial gearbox shafts, where the 215 mm outside diameter and 530 kN dynamic rating match the duty. In crane travelling-wheel mechanisms the unit fits a compact 120 mm seat, and in compact slow-speed agitator drives the 9.08 kg mass is part of the rotor inertia calculation. Designers also specify it for heavy industrial gearbox shafts, relying on the 58 mm width and the published 720 kN static rating. Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease. C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.
Typical equipment & failure modes
Common applications
- marine and offshore winch arrangements
- crane travelling-wheel mechanisms
- hydraulic pumps and radial piston pumps
- rolling-mill and steel-industry drives
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
- Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.
- 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.
Frequently asked questions
What are the dimensions of the SL182224?
The SL182224 is a SL1822 single-row full-complement semi-locating cylindrical roller bearing with 215 mm outside diameter, 120 mm bore and 58 mm width, envelope 120×215×58 mm. Mass is 9.08 kg.
What does the SL182224 designation mean in the FAG/INA HR1 catalogue?
SL182224 identifies this SL1822 single-row full-complement semi-locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 120×215×58 mm and the catalogue ratings are C 530 kN, C0 720 kN, Cur 100 kN.
What is the load capacity of the SL182224?
The basic dynamic load rating C is 530 kN and the basic static load rating C0 is 720 kN; the fatigue load limit Cur is 100 kN.
What is the maximum speed of the SL182224?
The limiting speed is 1,930 r/min and the thermal reference speed is 1,500 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 SL182224?
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.