SL182914-XL bearing: complete specifications & equivalents
The SL182914-XL is a ISO 15 radial bearing sized 70 x 100 x 19 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 70 mm |
| Outer diameter D | 100 mm |
| Width B | 19 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 88 kN |
| Basic static load rating C0 | 111 kN |
| Fatigue load limit Pu | 19.2 kN |
| Reference speed (thermal) | 2550 rpm |
| Limiting speed (mechanical) | 3950 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 490 g |
| Manufacturer designation | SL182914-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 | 2.756 in |
|---|---|
| Outer diameter D | 3.937 in |
| Width B | 0.748 in |
| ISO bore code | 14 |
| Radial section height (D−d)/2 | 15 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) | 3 of 34 |
| Bore above smallest sl1829-series size | 10 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL182914 | 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 SL182914-XL model number is decoded
envelope 70×100×19 mm with a 15.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 88 kN and C0 111 kN; with a C/C0 ratio of 0.79 the 19 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 3,950 r/min and the thermal reference speed 2,550 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 1.26 kN per millimetre of the 70 mm bore and 4.63 kN per millimetre of the 19 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 490 g (0.26 g per mm² of the 100×19 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads with a 70 mm bore this is a heavy-industrial bearing: 490 g of stiff ring and roller set, specified where rigidity matters more than speed The semi-locating function means this bearing locates the shaft in one axial direction and floats in the other — useful in two-bearing shafts where one position is fixed and the other absorbs expansion High radial rigidity at 88 kN C is the point of this design: rib-guided rollers in a cageless pack resist deflection in planetary gears, rope drums and vibrating machinery 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 70×100×19 mm envelope. Typical applications include crane travelling-wheel mechanisms, compact slow-speed agitator drives and heavy industrial gearbox shafts, where the 100 mm outside diameter and 88 kN dynamic rating match the duty. In crane travelling-wheel mechanisms the unit fits a compact 70 mm seat, and in compact slow-speed agitator drives the 490 g mass suits the compact, space-optimised housing. Designers also specify it for heavy industrial gearbox shafts, relying on the 19 mm width and the published 111 kN static rating. The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling. 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.
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
- The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
- 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.
- Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease.
Frequently asked questions
What are the dimensions of the SL182914-XL?
The SL182914-XL is a SL1829 single-row full-complement semi-locating cylindrical roller bearing with 100 mm outside diameter, 70 mm bore and 19 mm width, envelope 70×100×19 mm. Mass is 490 g.
What does the SL182914-XL designation mean in the FAG/INA HR1 catalogue?
SL182914-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 70×100×19 mm and the catalogue ratings are C 88 kN, C0 111 kN, Cur 19.2 kN.
What is the load capacity of the SL182914-XL?
The basic dynamic load rating C is 88 kN and the basic static load rating C0 is 111 kN; the fatigue load limit Cur is 19.2 kN.
What is the maximum speed of the SL182914-XL?
The limiting speed is 3,950 r/min and the thermal reference speed is 2,550 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 SL182914-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.