SL182912-XL bearing: complete specifications & equivalents
The SL182912-XL is a ISO 15 radial bearing sized 60 x 85 x 16 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 60 mm |
| Outer diameter D | 85 mm |
| Width B | 16 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 63 kN |
| Basic static load rating C0 | 76 kN |
| Fatigue load limit Pu | 13.9 kN |
| Reference speed (thermal) | 2900 rpm |
| Limiting speed (mechanical) | 4700 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 290 g |
| Manufacturer designation | SL182912-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 & sl1829-series range
| Bore d | 2.362 in |
|---|---|
| Outer diameter D | 3.346 in |
| Width B | 0.63 in |
| ISO bore code | 12 |
| Radial section height (D−d)/2 | 12.5 mm |
| Smallest bore in sl1829-series | 60 mm |
| Largest outer diameter in sl1829-series | 670 mm |
| Width range across sl1829-series | 16–100 mm |
| Bore position in sl1829-series (smallest first) | 1 of 34 |
| Bore above smallest sl1829-series size | 0 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL182912 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
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 SL182912-XL model number is decoded
envelope 60×85×16 mm with a 12.5 mm radial section; every available circumferential space carries a roller because there is no cage C is 63 kN and C0 76 kN; with a C/C0 ratio of 0.83 the 16 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 13.9 kN, the limiting speed 4,700 r/min and the thermal reference speed 2,900 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 1.05 kN per millimetre of the 60 mm bore and 3.94 kN per millimetre of the 16 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 290 g (0.21 g per mm² of the 85×16 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads 60 mm bore marks the medium range: mounting forces and fits become critical, and the 290 g mass calls for proper induction or press tooling rather than hand fitting 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 The -XL suffix marks the X-life execution: refined raceway topography and upgraded materials lift the basic ratings versus the non-X-life bearing at the same 60×85×16 mm envelope. Typical applications include hydraulic pumps and radial piston pumps, marine and offshore winch arrangements and rolling-mill and steel-industry drives, where the 85 mm outside diameter and 63 kN dynamic rating match the duty. In hydraulic pumps and radial piston pumps the unit fits a compact 60 mm seat, and in marine and offshore winch arrangements the 290 g mass suits the compact, space-optimised housing. Designers also specify it for rolling-mill and steel-industry drives, relying on the 16 mm width and the published 76 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. 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
- 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.
- 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 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 SL182912-XL?
The SL182912-XL is a SL1829 single-row full-complement semi-locating cylindrical roller bearing with 85 mm outside diameter, 60 mm bore and 16 mm width, envelope 60×85×16 mm. Mass is 290 g.
What does the SL182912-XL designation mean in the FAG/INA HR1 catalogue?
SL182912-XL identifies this SL1829 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 60×85×16 mm and the catalogue ratings are C 63 kN, C0 76 kN, Cur 13.9 kN.
What is the load capacity of the SL182912-XL?
The basic dynamic load rating C is 63 kN and the basic static load rating C0 is 76 kN; the fatigue load limit Cur is 13.9 kN.
What is the maximum speed of the SL182912-XL?
The limiting speed is 4,700 r/min and the thermal reference speed is 2,900 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 SL182912-XL?
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.