C3132-K bearing: complete specifications & equivalents
The C3132-K is a ISO 15 radial bearing sized 160 x 270 x 86 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 160 mm |
| Outer diameter D | 270 mm |
| Width B | 86 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 1000 kN |
| Basic static load rating C0 | 1400 kN |
| Fatigue load limit Pu | 129 kN |
| Reference speed (thermal) | 1900 rpm |
| Limiting speed (mechanical) | 2600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 21500 g |
| Manufacturer designation | C 3132 K |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.1 CARB toroidal roller bearings |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.1 CARB toroidal roller bearings) · extracted 2026-09-27
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.1 CARB toroidal roller bearings); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & C3100-series range
| Bore d | 6.299 in |
|---|---|
| Outer diameter D | 10.63 in |
| Width B | 3.386 in |
| ISO bore code | 32 |
| Radial section height (D−d)/2 | 55 mm |
| Smallest bore in C3100-series | 100 mm |
| Largest outer diameter in C3100-series | 1580 mm |
| Width range across C3100-series | 52–462 mm |
| Bore position in C3100-series (smallest first) | 3 of 28 |
| Bore above smallest C3100-series size | 60 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C3132 | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 160×270×86 mm ISO 15 envelope and equivalent catalogue C/C0; C 3132 is the cylindrical-bore steel-caged execution of this size — boundary dimensions interchangeable, only mounting and cage execution differ. |
| 23132 | SKF | full Dimensions and internal design equivalent — standard interchange. | Envelope-identical (160×270×86 mm) SKF spherical roller bearing SKF 23132 CC/W33 with ratings within 10 % — not a drop-in substitute: SKF 23132 CC/W33 locates the shaft axially while the CARB bearing must float; the two are designed to run as a locating/non-locating pair. |
| 23132-CCK-W33 | SKF | full Dimensions and internal design equivalent — standard interchange. | Envelope-identical (160×270×86 mm) SKF spherical roller bearing SKF 23132 CCK/W33 with ratings within 10 % — not a drop-in substitute: SKF 23132 CCK/W33 locates the shaft axially while the CARB bearing must float; the two are designed to run as a locating/non-locating pair. |
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 C3132-K model number is decoded
C 3132 K is the dimension series 31 CARB toroidal roller bearings member of the CARB range: 160 mm bore, 270 mm OD, 86 mm width, with the asymmetrical-looking toroidal roller set that defines the CARB principle. The designation C 3132 K separates into C (CARB), 31 (dimension series), 32 (160 mm bore) and K (tapered 1:12 bore for adapter (H) sleeve mounting, pressed steel cage); envelope 160×270×86 mm follows the ISO 15 plan. The open execution relies on the housing seals and lubrication system, fed through groove/hole features on the large sizes. Explorer-class heat treatment and the crowned roller profile keep edge stress down when the 160 mm shaft deflects; the 1,900 r/min reference and 2,600 r/min limiting speed are both catalogue values. Selection arithmetic: C 1000 kN against C0 1400 kN gives a C0/C ratio of 1.40, and the 129 kN fatigue load limit Pu sets the contamination-adjusted life floor. Seat tolerances follow the ISO 15 recommendation for the normal-load position — the 270 mm outer ring typically takes a loose housing fit to preserve float, and the rings must be supported across their full faces.
Typical equipment & failure modes
Common applications
- vibrating screen exciters fitted with the VE240 tolerance execution
- long fan and kiln main shafts where the free end must float without thrust load
- heavy industrial gearbox layshafts used as the non-locating position
- winder and reel drums in paper and steel strip plants
Known failure patterns
- raceway spalling once the catalogue L10 life is exceeded or after sustained overload
- roller skew and cage damage after the bearing is clamped solid between shaft and housing shoulders
- brass cage pocket wear under marginal lubrication in the large-bore M/MB executions
- false brinelling and rust-red witness marks on standby machines under external vibration
- oil starvation at the sliding contact zones of large spherical roller thrust bearings on forced-feed trips
Selection pitfalls — read before you substitute
- At 160 mm bore, shaft expansion is already measurable: calculate the required float inside the 86 mm wide bearing rather than assuming the free-end clearance is "enough" at operating temperature.
- Never use C 3132 K as the locating bearing: it carries no axial load by design — the arrangement needs a separate locating spherical, tapered or angular bearing facing the thrust.
- Tapered-bore K executions mount on adapter sleeves (1:12) and K30 on withdrawal sleeves (1:30) — the 160 mm bore changes the sleeve family, and the drive-up procedure differs accordingly.
- Envelope-identical spherical roller bearings (same ISO 15 d×D×B) are not drop-in equivalents — they locate the shaft axially, while C 3132 K must float; the two are designed to be used as a pair.
- Reference and limiting speeds are different limits: the 1,900 r/min reference speed is the thermal criterion under load, the limiting value is the mechanical ceiling; observe the reference under load unless the arrangement calculation says otherwise.
- The 1000/1400 kN ratings and 21500 g mass are SKF catalogue values transcribed from ch. 10.1 of PUB BU/P1 17000 (PDF table page 862); mounting data — axial displacement (s) and seating details — appears in the running text because the structured record carries the boundary envelope only.
Frequently asked questions
How is C 3132 K mounted?
The tapered 1:12 bore mounts on an adapter (H) sleeve with a defined drive-up; heat the bearing to max 120 °C when fitting, support full ring faces, and verify axial float afterwards.
What are the dimensions and ratings of the C 3132 K?
A C 3132 K measures 160 mm bore × 270 mm outside diameter × 86 mm width (6.299 × 10.63 × 3.386 in). From SKF catalogue PUB BU/P1 17000: dynamic C 1000 kN, static C0 1400 kN, fatigue limit Pu 129 kN, reference speed 1,900 r/min, limiting speed 2,600 r/min, mass about 21500 g.
Can a CARB bearing like C 3132 K locate the shaft axially?
No — that is the defining feature. C 3132 K deliberately allows the inner ring to float axially inside the outer ring while the toroidal rollers self-align. It must be paired with a separate locating bearing (spherical, tapered or angular contact) that takes 100 % of the thrust.
How is the C 3132 K designation read?
C = CARB toroidal family; 31 = dimension series; 32 = 160 mm bore (code 32 × 5); suffix K selects tapered 1:12 bore for adapter (H) sleeve mounting, pressed steel cage. K is a 1:12 tapered bore for an adapter sleeve, K30 a 1:30 bore for a withdrawal sleeve.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.1 CARB toroidal roller bearings on 2026-09-27. Read our editorial & correction policy.