C4032 bearing: complete specifications & equivalents
The C4032 is a ISO 15 radial bearing sized 160 x 240 x 80 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 | 240 mm |
| Width B | 80 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 765 kN |
| Basic static load rating C0 | 1160 kN |
| Fatigue load limit Pu | 110 kN |
| Reference speed (thermal) | 1700 rpm |
| Limiting speed (mechanical) | 2400 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 12500 g |
| Manufacturer designation | C 4032 |
| 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 & C4000-series range
| Bore d | 6.299 in |
|---|---|
| Outer diameter D | 9.449 in |
| Width B | 3.15 in |
| ISO bore code | 32 |
| Radial section height (D−d)/2 | 40 mm |
| Smallest bore in C4000-series | 50 mm |
| Largest outer diameter in C4000-series | 1030 mm |
| Width range across C4000-series | 30–315 mm |
| Bore position in C4000-series (smallest first) | 10 of 16 |
| Bore above smallest C4000-series size | 110 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C4032-K30 | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 160×240×80 mm ISO 15 envelope and equivalent catalogue C/C0; C 4032 K30 is the 1:30 tapered-bore K30 steel-caged execution of this size — boundary dimensions interchangeable, only mounting and cage execution differ. |
| C4032-2CS5V-GEM9 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 160×240×80 mm envelope, but catalogue C/C0 differ between the cylindrical-bore steel-caged and cylindrical-bore sealed full-complement V executions (765/1160 kN vs 830/1290 kN) — envelope match, not a load-rating equivalent. |
| C4032-V | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 160×240×80 mm envelope, but catalogue C/C0 differ between the cylindrical-bore steel-caged and cylindrical-bore full-complement V executions (765/1160 kN vs 915/1460 kN) — envelope match, not a load-rating equivalent. |
| C4032-K30V | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 160×240×80 mm envelope, but catalogue C/C0 differ between the cylindrical-bore steel-caged and 1:30 tapered-bore K30 full-complement V executions (765/1160 kN vs 915/1460 kN) — envelope match, not a load-rating equivalent. |
| 24032 | SKF | full Dimensions and internal design equivalent — standard interchange. | Envelope-identical (160×240×80 mm) SKF spherical roller bearing SKF 24032 CC/W33 with ratings within 10 % — not a drop-in substitute: SKF 24032 CC/W33 locates the shaft axially while the CARB bearing must float; the two are designed to run as a locating/non-locating pair. |
| 24032-CCK30-W33 | SKF | full Dimensions and internal design equivalent — standard interchange. | Envelope-identical (160×240×80 mm) SKF spherical roller bearing SKF 24032 CCK30/W33 with ratings within 10 % — not a drop-in substitute: SKF 24032 CCK30/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 C4032 model number is decoded
C 4032 belongs to the CARB family — compact aligning roller bearings: envelope 160×240×80 mm, radial rating 765/1160 kN C/C0, and no axial-locating function by design. In C 4032 the 40 dimension series fixes the 240 mm OD and 80 mm width around the 160 mm bore (code 32 × 5); the suffix the bare number then selects the cylindrical bore for direct shaft fitting, pressed steel cage. CARB bearings locate neither radially nor axially: the inner ring can walk axially inside the outer ring over the catalogue-listed axial-displacement range (s), so shaft thermal growth disappears as thrust rather than preloading the 160 mm seat. Pairing rule: use the CARB bearing opposite one locating spherical or tapered bearing — never at both shaft ends — and check the locating bearing takes 100 % of the thrust, since C 4032 deliberately carries none. Mounting: slide the bearing onto the 160 mm seat or heat it (max 120 °C) and seat it square; never press through the 80 mm roller set, and leave the free-end housing shoulder clear so axial float is unrestricted.
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
- edge loading and premature spalling when the CARB position is blocked from its designed axial float
- PA66 cage (TN9) softening when the sustained temperature passes the polymer limit
- electrical erosion of raceways on VFD-driven shafts without grounding or insulation
- abrasive paste forming as dust bypasses the housing seals into the open washer set
Selection pitfalls — read before you substitute
- At 160 mm bore, shaft expansion is already measurable: calculate the required float inside the 80 mm wide bearing rather than assuming the free-end clearance is "enough" at operating temperature.
- Reference and limiting speeds are different limits: the 1,700 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 quoted 765/1160 kN ratings belong to this exact execution (C 4032); VE240 vibrating-screen variants and sealed 2CS/2NS variants have their own figures even at the same envelope.
- Do not block the axial displacement in the drawing: housing covers, labyrinth rings and snap rings must leave the catalogue float (s) free, or the bearing silently becomes a poorly located fixed bearing.
- Never use C 4032 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.
- The 765/1160 kN ratings and 12500 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 4032 mounted?
Slide or heat (max 120 °C) the bearing onto the 160 mm seat, give the outer ring a loose housing fit, leave the float travel unobstructed, and never press through the 80 mm roller set.
What are the dimensions and ratings of the C 4032?
A C 4032 measures 160 mm bore × 240 mm outside diameter × 80 mm width (6.299 × 9.449 × 3.15 in). From SKF catalogue PUB BU/P1 17000: dynamic C 765 kN, static C0 1160 kN, fatigue limit Pu 110 kN, reference speed 1,700 r/min, limiting speed 2,400 r/min, mass about 12500 g.
Can a CARB bearing like C 4032 locate the shaft axially?
No — that is the defining feature. C 4032 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 4032 designation read?
C = CARB toroidal family; 40 = dimension series; 32 = 160 mm bore (code 32 × 5); suffix the bare number selects cylindrical bore for direct shaft fitting, 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.