SL014964 bearing: complete specifications & equivalents
The SL014964 is a ISO 15 radial bearing sized 320 x 440 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 | 320 mm |
| Outer diameter D | 440 mm |
| Width B | 118 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 1700 kN |
| Basic static load rating C0 | 4050 kN |
| Fatigue load limit Pu | 435 kN |
| Reference speed (thermal) | 395 rpm |
| Limiting speed (mechanical) | 800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 56000 g |
| Manufacturer designation | SL014964 |
| 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 & sl0149-series range
| Bore d | 12.598 in |
|---|---|
| Outer diameter D | 17.323 in |
| Width B | 4.646 in |
| ISO bore code | 64 |
| Radial section height (D−d)/2 | 60 mm |
| Smallest bore in sl0149-series | 60 mm |
| Largest outer diameter in sl0149-series | 540 mm |
| Width range across sl0149-series | 25–140 mm |
| Bore position in sl0149-series (smallest first) | 21 of 25 |
| Bore above smallest sl0149-series size | 260 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| SL014964 | 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 SL014964 model number is decoded
envelope 320×440×118 mm with a 60.0 mm radial section; every available circumferential space carries a roller because there is no cage C is 1700 kN and C0 4050 kN; with a C/C0 ratio of 0.42 the 118 mm-wide full complement concentrates on extreme static and steady radial capacity rather than speed the fatigue load limit Cur is 435 kN, the limiting speed 800 r/min and the thermal reference speed 395 r/min — full-complement roller-to-roller contact keeps both speeds well below caged cylindrical bearings of the same size the dynamic rating is 5.31 kN per millimetre of the 320 mm bore and 14.41 kN per millimetre of the 118 mm width, figures that explain the use of this bearing in compact, heavily loaded gearbox positions mass is 56 kg (56000 g) (1.08 g per mm² of the 440×118 mm envelope); the stiff, thick rings keep raceway deformation low under peak loads at 320 mm bore this is among the largest catalogue sizes; the 800 r/min limiting speed confirms a slow-speed, extreme-load application such as a slewing or rolling-mill position The locating structure has an axially split outer ring with ribs on both sides, joined by retaining rings, and an inner ring with a centre rib — the 118 mm width houses two complete roller rows Typical applications include heavy industrial gearbox shafts, crane travelling-wheel mechanisms and vibrating and oscillating machinery, where the 440 mm outside diameter and 1700 kN dynamic rating match the duty. In heavy industrial gearbox shafts the unit fits a compact 320 mm seat, and in crane travelling-wheel mechanisms the 56 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 4050 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. The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
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.
- The bearings cannot accommodate angular misalignment; check shaft and housing parallelism before blaming the bearing for edge spalling.
- 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.
Frequently asked questions
What are the dimensions of the SL014964?
The SL014964 is a SL0149 double-row full-complement locating cylindrical roller bearing with 440 mm outside diameter, 320 mm bore and 118 mm width, envelope 320×440×118 mm. Mass is 56 kg.
What does the SL014964 designation mean in the FAG/INA HR1 catalogue?
SL014964 identifies this SL0149 double-row full-complement locating cylindrical roller bearing in the Schaeffler HR1 rolling bearings catalogue. The envelope is 320×440×118 mm and the catalogue ratings are C 1700 kN, C0 4050 kN, Cur 435 kN.
What is the load capacity of the SL014964?
The basic dynamic load rating C is 1700 kN and the basic static load rating C0 is 4050 kN; the fatigue load limit Cur is 435 kN.
What is the maximum speed of the SL014964?
The limiting speed is 800 r/min and the thermal reference speed is 395 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 SL014964?
The SL0149 is a locating bearing: it fixes the shaft axially in both directions; pair it with a non-locating SL0249 at the other end to avoid binding.
Reviewed & verified by the MPN Base engineering desk against source catalog HR1 2026-09-25 on 2026-09-30. Read our editorial & correction policy.