SL182216 bearing: complete specifications & equivalents
The SL182216 is a ISO 15 radial bearing sized 80 x 140 x 33 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 80 mm |
| Outer diameter D | 140 mm |
| Width B | 33 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 223 kN |
| Basic static load rating C0 | 280 kN |
| Fatigue load limit Pu | 41.5 kN |
| Reference speed (thermal) | 2040 rpm |
| Limiting speed (mechanical) | 3000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 2150 g |
| Manufacturer designation | SL182216 |
| 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 | 3.15 in |
|---|---|
| Outer diameter D | 5.512 in |
| Width B | 1.299 in |
| ISO bore code | 16 |
| Radial section height (D−d)/2 | 30 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) | 13 of 27 |
| Bore above smallest sl1822-series size | 60 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL182216 | 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 SL182216 model number is decoded
envelope 80×140×33 mm with a 30.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 223 kN and C0 280 kN; with a C/C0 ratio of 0.80 the 33 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 41.5 kN, the limiting speed 3,000 r/min and the thermal reference speed 2,040 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 2.79 kN per millimetre of the 80 mm bore and 6.76 kN per millimetre of the 33 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 2.15 kg (2150 g) (0.47 g per mm² of the 140×33 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 80 mm bore belongs to the large band, where HR1 full-complement and track-roller designs deliver their highest kilonewton ratings in slow, heavily loaded machinery The dimension-series digits place this bearing in the SL18 section of the HR1 plan, giving the 30.0 mm section height between the 80 mm bore and the 140 mm outside diameter Typical applications include marine and offshore winch arrangements, rope drums and winch drums and hydraulic pumps and radial piston pumps, where the 140 mm outside diameter and 223 kN dynamic rating match the duty. In marine and offshore winch arrangements the unit fits a compact 80 mm seat, and in rope drums and winch drums the 2.15 kg mass is part of the rotor inertia calculation. Designers also specify it for hydraulic pumps and radial piston pumps, relying on the 33 mm width and the published 280 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. 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
- 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.
- C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.
- The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
Frequently asked questions
What are the dimensions of the SL182216?
The SL182216 is a SL1822 single-row full-complement semi-locating cylindrical roller bearing with 140 mm outside diameter, 80 mm bore and 33 mm width, envelope 80×140×33 mm. Mass is 2.15 kg.
What does the SL182216 designation mean in the FAG/INA HR1 catalogue?
SL182216 identifies this SL1822 single-row full-complement semi-locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 80×140×33 mm and the catalogue ratings are C 223 kN, C0 280 kN, Cur 41.5 kN.
What is the load capacity of the SL182216?
The basic dynamic load rating C is 223 kN and the basic static load rating C0 is 280 kN; the fatigue load limit Cur is 41.5 kN.
What is the maximum speed of the SL182216?
The limiting speed is 3,000 r/min and the thermal reference speed is 2,040 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 SL182216?
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.