SL183060-TB bearing: complete specifications & equivalents
The SL183060-TB is a ISO 15 radial bearing sized 300 x 460 x 118 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 300 mm |
| Outer diameter D | 460 mm |
| Width B | 118 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 2020 kN |
| Basic static load rating C0 | 3300 kN |
| Fatigue load limit Pu | 335 kN |
| Reference speed (thermal) | 500 rpm |
| Limiting speed (mechanical) | 800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 66600 g |
| Manufacturer designation | SL183060-TB |
| 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 & sl1830-series range
| Bore d | 11.811 in |
|---|---|
| Outer diameter D | 18.11 in |
| Width B | 4.646 in |
| ISO bore code | 60 |
| Radial section height (D−d)/2 | 80 mm |
| Smallest bore in sl1830-series | 20 mm |
| Largest outer diameter in sl1830-series | 600 mm |
| Width range across sl1830-series | 16–148 mm |
| Bore position in sl1830-series (smallest first) | 31 of 36 |
| Bore above smallest sl1830-series size | 280 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL183060 | 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 SL183060-TB model number is decoded
envelope 300×460×118 mm with a 80.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 2020 kN and C0 3300 kN; with a C/C0 ratio of 0.61 the 118 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 335 kN, the limiting speed 800 r/min and the thermal reference speed 500 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 6.73 kN per millimetre of the 300 mm bore and 17.12 kN per millimetre of the 118 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 66.6 kg (66600 g) (1.23 g per mm² of the 460×118 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 300 mm bore puts this execution at the top of the HR1 range — the 460 mm outside diameter, 118 mm width and 66.6 kg mass are built for primary-industry load cases High radial rigidity at 2020 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 Reading the designation: SL18 marks the Schaeffler full-complement semi-locating type with one rib on the outer ring and two ribs on the inner ring; the rollers are axially guided by the inner ring while the outer ring can displace by the catalogue s-value The -TB suffix denotes the increased axial-load design: profiled roller ends and optimised rib contact geometry lower edge stress and friction at the guide ribs. Typical applications include heavy industrial gearbox shafts, crane travelling-wheel mechanisms and vibrating and oscillating machinery, where the 460 mm outside diameter and 2020 kN dynamic rating match the duty. In heavy industrial gearbox shafts the unit fits a compact 300 mm seat, and in crane travelling-wheel mechanisms the 66.6 kg mass is part of the rotor inertia calculation. Designers also specify it for vibrating and oscillating machinery, relying on the 118 mm width and the published 3300 kN static rating. Relubrication paths matter: specify the annular groove/hole executions where access is poor, because the tightly packed rows trap old grease. The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
Typical equipment & failure modes
Common applications
- rope drums and winch drums
- compact slow-speed agitator drives
- marine and offshore winch arrangements
- hydraulic pumps and radial piston pumps
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.
- The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
- 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.
Frequently asked questions
What are the dimensions of the SL183060-TB?
The SL183060-TB is a SL1830 single-row full-complement semi-locating cylindrical roller bearing with 460 mm outside diameter, 300 mm bore and 118 mm width, envelope 300×460×118 mm. Mass is 66.6 kg.
What does the SL183060-TB designation mean in the FAG/INA HR1 catalogue?
SL183060-TB identifies this SL1830 single-row full-complement semi-locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 300×460×118 mm and the catalogue ratings are C 2020 kN, C0 3300 kN, Cur 335 kN.
What is the load capacity of the SL183060-TB?
The basic dynamic load rating C is 2020 kN and the basic static load rating C0 is 3300 kN; the fatigue load limit Cur is 335 kN.
What is the maximum speed of the SL183060-TB?
The limiting speed is 800 r/min and the thermal reference speed is 500 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 SL183060-TB?
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.