SL182234 bearing: complete specifications & equivalents
The SL182234 is a ISO 15 radial bearing sized 170 x 310 x 86 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 170 mm |
| Outer diameter D | 310 mm |
| Width B | 86 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 1140 kN |
| Basic static load rating C0 | 1660 kN |
| Fatigue load limit Pu | 208 kN |
| Reference speed (thermal) | 870 rpm |
| Limiting speed (mechanical) | 1300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 28650 g |
| Manufacturer designation | SL182234 |
| 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 | 6.693 in |
|---|---|
| Outer diameter D | 12.205 in |
| Width B | 3.386 in |
| ISO bore code | 34 |
| Radial section height (D−d)/2 | 70 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) | 24 of 27 |
| Bore above smallest sl1822-series size | 150 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL182234 | 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 SL182234 model number is decoded
envelope 170×310×86 mm with a 70.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 1140 kN and C0 1660 kN; with a C/C0 ratio of 0.69 the 86 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 208 kN, the limiting speed 1,300 r/min and the thermal reference speed 870 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 170 mm bore and 13.26 kN per millimetre of the 86 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 28.65 kg (28650 g) (1.07 g per mm² of the 310×86 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 170 mm bore puts this execution at the top of the HR1 range — the 310 mm outside diameter, 86 mm width and 28.65 kg mass are built for primary-industry load cases SL18 bearings are separable for mounting: the inner ring with the self-retained roller set can be fitted separately from the plain-bored outer ring, which simplifies interference-fit assembly SL182234 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 hydraulic pumps and radial piston pumps, marine and offshore winch arrangements and rolling-mill and steel-industry drives, where the 310 mm outside diameter and 1140 kN dynamic rating match the duty. In hydraulic pumps and radial piston pumps the unit fits a compact 170 mm seat, and in marine and offshore winch arrangements the 28.65 kg mass is part of the rotor inertia calculation. Designers also specify it for rolling-mill and steel-industry drives, relying on the 86 mm width and the published 1660 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. 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.
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
- 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.
- 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 split outer ring of SL0149 is joined by retaining rings for handling only; never use those rings as a thrust face in the design.
Frequently asked questions
What are the dimensions of the SL182234?
The SL182234 is a SL1822 single-row full-complement semi-locating cylindrical roller bearing with 310 mm outside diameter, 170 mm bore and 86 mm width, envelope 170×310×86 mm. Mass is 28.65 kg.
What does the SL182234 designation mean in the FAG/INA HR1 catalogue?
SL182234 identifies this SL1822 single-row full-complement semi-locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 170×310×86 mm and the catalogue ratings are C 1140 kN, C0 1660 kN, Cur 208 kN.
What is the load capacity of the SL182234?
The basic dynamic load rating C is 1140 kN and the basic static load rating C0 is 1660 kN; the fatigue load limit Cur is 208 kN.
What is the maximum speed of the SL182234?
The limiting speed is 1,300 r/min and the thermal reference speed is 870 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 SL182234?
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.