SL182996-TB bearing: complete specifications & equivalents
The SL182996-TB is a ISO 15 radial bearing sized 480 x 650 x 100 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | FAG |
| Bore diameter d | 480 mm |
| Outer diameter D | 650 mm |
| Width B | 100 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 2390 kN |
| Basic static load rating C0 | 4800 kN |
| Fatigue load limit Pu | 480 kN |
| Reference speed (thermal) | 280 rpm |
| Limiting speed (mechanical) | 530 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 94700 g |
| Manufacturer designation | SL182996-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 & sl1829-series range
| Bore d | 18.898 in |
|---|---|
| Outer diameter D | 25.591 in |
| Width B | 3.937 in |
| ISO bore code | 96 |
| Radial section height (D−d)/2 | 85 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) | 33 of 34 |
| Bore above smallest sl1829-series size | 420 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL182996 | 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 SL182996-TB model number is decoded
envelope 480×650×100 mm with a 85.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 2390 kN and C0 4800 kN; with a C/C0 ratio of 0.50 the 100 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 480 kN, the limiting speed 530 r/min and the thermal reference speed 280 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 4.98 kN per millimetre of the 480 mm bore and 23.90 kN per millimetre of the 100 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 94.7 kg (94700 g) (1.46 g per mm² of the 650×100 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 480 mm bore puts this execution at the top of the HR1 range — the 650 mm outside diameter, 100 mm width and 94.7 kg mass are built for primary-industry load cases 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 The dimension-series digits place this bearing in the SL18 section of the HR1 plan, giving the 85.0 mm section height between the 480 mm bore and the 650 mm outside diameter 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 rolling-mill and steel-industry drives, hydraulic pumps and radial piston pumps and material handling conveyor pulleys, where the 650 mm outside diameter and 2390 kN dynamic rating match the duty. In rolling-mill and steel-industry drives the unit fits a compact 480 mm seat, and in hydraulic pumps and radial piston pumps the 94.7 kg mass is part of the rotor inertia calculation. Designers also specify it for material handling conveyor pulleys, relying on the 100 mm width and the published 4800 kN static rating. 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.
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
- 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.
- C0 is the number that tempts overload in slow machinery, but fatigue life is still governed by the dynamic C rating and lubricant film.
Frequently asked questions
What are the dimensions of the SL182996-TB?
The SL182996-TB is a SL1829 single-row full-complement semi-locating cylindrical roller bearing with 650 mm outside diameter, 480 mm bore and 100 mm width, envelope 480×650×100 mm. Mass is 94.7 kg.
What does the SL182996-TB designation mean in the FAG/INA HR1 catalogue?
SL182996-TB identifies this SL1829 single-row full-complement semi-locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 480×650×100 mm and the catalogue ratings are C 2390 kN, C0 4800 kN, Cur 480 kN.
What is the load capacity of the SL182996-TB?
The basic dynamic load rating C is 2390 kN and the basic static load rating C0 is 4800 kN; the fatigue load limit Cur is 480 kN.
What is the maximum speed of the SL182996-TB?
The limiting speed is 530 r/min and the thermal reference speed is 280 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 SL182996-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.