SL182988-TB bearing: complete specifications & equivalents

The SL182988-TB is a ISO 15 radial bearing sized 440 x 600 x 95 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.

Bearing dimension schematic Front view shows outer diameter D and bore d; side section shows width B. D = 600 mm d = 440 B = 95 mm side section front view
Principal dimensions: bore d 440 mm, outer diameter D 600 mm, width B 95 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand FAG
Bore diameter d 440 mm
Outer diameter D 600 mm
Width B 95 mm
Material GCr15
Seal / shield open
Internal clearance CN
Tolerance class P0
Cage none
Basic dynamic load rating C 2090 kN
Basic static load rating C0 4100 kN
Fatigue load limit Pu 420 kN
Reference speed (thermal) 325 rpm
Limiting speed (mechanical) 590 rpm
Operating temperature -40 to +120 °C
Mass 78100 g
Manufacturer designation SL182988-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 17.323 in
Outer diameter D 23.622 in
Width B 3.74 in
ISO bore code 88
Radial section height (D−d)/2 80 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) 31 of 34
Bore above smallest sl1829-series size 380 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
SL182988 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 SL182988-TB model number is decoded

envelope 440×600×95 mm with a 80.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 2090 kN and C0 4100 kN; with a C/C0 ratio of 0.51 the 95 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 420 kN, the limiting speed 590 r/min and the thermal reference speed 325 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 4.75 kN per millimetre of the 440 mm bore and 22.00 kN per millimetre of the 95 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 78.1 kg (78100 g) (1.37 g per mm² of the 600×95 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads the 440 mm bore puts this execution at the top of the HR1 range — the 600 mm outside diameter, 95 mm width and 78.1 kg mass are built for primary-industry load cases SL182988-TB is a single-row full-complement cylindrical roller bearing: no cage is fitted, so the maximum number of rollers runs between the rings, and the rollers guide themselves on the two inner-ring ribs The -TB feature concerns the rib contact, not the envelope: the 440×600×95 mm dimensions and 78.1 kg mass follow the standard series plan. Typical applications include crane travelling-wheel mechanisms, compact slow-speed agitator drives and heavy industrial gearbox shafts, where the 600 mm outside diameter and 2090 kN dynamic rating match the duty. In crane travelling-wheel mechanisms the unit fits a compact 440 mm seat, and in compact slow-speed agitator drives the 78.1 kg mass is part of the rotor inertia calculation. Designers also specify it for heavy industrial gearbox shafts, relying on the 95 mm width and the published 4100 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. 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

  • heavy industrial gearbox shafts
  • construction machinery slewing drives
  • vibrating and oscillating machinery
  • rope drums and winch drums

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.
  • 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.
  • The split outer ring of SL0149 is joined by retaining rings for handling only; never use those rings as a thrust face in the design.

Frequently asked questions

What are the dimensions of the SL182988-TB?

The SL182988-TB is a SL1829 single-row full-complement semi-locating cylindrical roller bearing with 600 mm outside diameter, 440 mm bore and 95 mm width, envelope 440×600×95 mm. Mass is 78.1 kg.

What does the SL182988-TB designation mean in the FAG/INA HR1 catalogue?

SL182988-TB identifies this SL1829 single-row full-complement semi-locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 440×600×95 mm and the catalogue ratings are C 2090 kN, C0 4100 kN, Cur 420 kN.

What is the load capacity of the SL182988-TB?

The basic dynamic load rating C is 2090 kN and the basic static load rating C0 is 4100 kN; the fatigue load limit Cur is 420 kN.

What is the maximum speed of the SL182988-TB?

The limiting speed is 590 r/min and the thermal reference speed is 325 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 SL182988-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.