SL185007-XL bearing: complete specifications & equivalents
The SL185007-XL is a ISO 15 radial bearing sized 35 x 62 x 36 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 35 mm |
| Outer diameter D | 62 mm |
| Width B | 36 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 94 kN |
| Basic static load rating C0 | 107 kN |
| Fatigue load limit Pu | 19.2 kN |
| Reference speed (thermal) | 4750 rpm |
| Limiting speed (mechanical) | 7100 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 460 g |
| Manufacturer designation | SL185007-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 & sl1850-series range
| Bore d | 1.378 in |
|---|---|
| Outer diameter D | 2.441 in |
| Width B | 1.417 in |
| ISO bore code | 07 |
| Radial section height (D−d)/2 | 13.5 mm |
| Smallest bore in sl1850-series | 20 mm |
| Largest outer diameter in sl1850-series | 560 mm |
| Width range across sl1850-series | 30–243 mm |
| Bore position in sl1850-series (smallest first) | 4 of 35 |
| Bore above smallest sl1850-series size | 15 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL185007 | 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 SL185007-XL model number is decoded
envelope 35×62×36 mm with a 13.5 mm radial section; every available circumferential space carries a roller because there is no cage C is 94 kN and C0 107 kN; with a C/C0 ratio of 0.88 the 36 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 19.2 kN, the limiting speed 7,100 r/min and the thermal reference speed 4,750 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 2.69 kN per millimetre of the 35 mm bore and 2.61 kN per millimetre of the 36 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 460 g (0.21 g per mm² of the 62×36 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 35 mm bore places this bearing in the medium band, where the 62 mm envelope already carries ratings in the tens of kilonewtons SL1850 denotes the double-row full-complement semi-locating bearing: two roller rows share the 35 mm bore, and the arrangement guides the shaft axially in one direction while allowing displacement s in the other Two cageless roller rows inside the 62×36 mm envelope give C 94 kN and C0 107 kN — among the highest radial capacities available at the 35 mm bore As an X-life (-XL) bearing it benefits from the optimised surface finish that reduces friction and raises the fatigue strength behind the 19.2 kN Cur value. Typical applications include rope drums and winch drums, vibrating and oscillating machinery and marine and offshore winch arrangements, where the 62 mm outside diameter and 94 kN dynamic rating match the duty. In rope drums and winch drums the unit fits a compact 35 mm seat, and in vibrating and oscillating machinery the 460 g mass suits the compact, space-optimised housing. Designers also specify it for marine and offshore winch arrangements, relying on the 36 mm width and the published 107 kN static rating. Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease. 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
- crane travelling-wheel mechanisms
- material handling conveyor pulleys
- heavy industrial gearbox shafts
- vibrating and oscillating machinery
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.
- 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.
Frequently asked questions
What are the dimensions of the SL185007-XL?
The SL185007-XL is a SL1850 double-row full-complement semi-locating cylindrical roller bearing with 62 mm outside diameter, 35 mm bore and 36 mm width, envelope 35×62×36 mm. Mass is 460 g.
What does the SL185007-XL designation mean in the FAG/INA HR1 catalogue?
SL185007-XL identifies this SL1850 double-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 35×62×36 mm and the catalogue ratings are C 94 kN, C0 107 kN, Cur 19.2 kN.
What is the load capacity of the SL185007-XL?
The basic dynamic load rating C is 94 kN and the basic static load rating C0 is 107 kN; the fatigue load limit Cur is 19.2 kN.
What is the maximum speed of the SL185007-XL?
The limiting speed is 7,100 r/min and the thermal reference speed is 4,750 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 SL185007-XL?
The SL1850 is semi-locating: it carries axial load in one direction and permits the catalogue s-displacement in the other.
Reviewed & verified by the MPN Base engineering desk against source catalog HR1 2026-09-25 on 2026-09-30. Read our editorial & correction policy.