C4032-2CS5V-GEM9 bearing: complete specifications & equivalents
The C4032-2CS5V-GEM9 is a ISO 15 radial bearing sized 160 x 240 x 80 mm (bore x OD x width) with 2RS sealing. 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 | 2RS |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | none |
| Basic dynamic load rating C | 830 kN |
| Basic static load rating C0 | 1290 kN |
| Fatigue load limit Pu | 122 kN |
| Limiting speed (mechanical) | 60 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 12500 g |
| Manufacturer designation | C 4032-2CS5V/GEM9 |
| 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 | 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 sealed full-complement V and cylindrical-bore steel-caged executions (830/1290 kN vs 765/1160 kN) — envelope match, not a load-rating equivalent. |
| C4032-K30 | 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 sealed full-complement V and 1:30 tapered-bore K30 steel-caged executions (830/1290 kN vs 765/1160 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 sealed full-complement V and cylindrical-bore full-complement V executions (830/1290 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 sealed full-complement V and 1:30 tapered-bore K30 full-complement V executions (830/1290 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 C4032-2CS5V-GEM9 model number is decoded
C 4032-2CS5V/GEM9 belongs to the CARB family — compact aligning roller bearings: envelope 160×240×80 mm, radial rating 830/1290 kN C/C0, and no axial-locating function by design. Reading the code: C marks the CARB toroidal family, the first two digits (40) identify the ISO dimension series and the last two (160 mm (slash-size)) encode the 160 mm bore; suffixes describe bore and execution. 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. Selection arithmetic: C 830 kN against C0 1290 kN gives a C0/C ratio of 1.55, and the 122 kN fatigue load limit Pu sets the contamination-adjusted life floor. After fitting, confirm the inner ring can be pushed axially by hand through the catalogue displacement range; a ring that will not slide means the position is locked and will preload in service.
Typical equipment & failure modes
Common applications
- paper machine drying cylinders and calender rolls with long, thermally expanding shafts
- continuous-caster guide rolls and slab-caster segments under heat growth
- vibrating screen exciters fitted with the VE240 tolerance execution
- long fan and kiln main shafts where the free end must float without thrust load
Known failure patterns
- roller-end and flange smearing after lubricant starvation at the long roller contacts
- thermal preloading when a shaft is located at both ends and growth has nowhere to go
- PA66 cage (TN9) softening when the sustained temperature passes the polymer limit
- hard-particle indentation where oil or grease filtration is inadequate
- grease churning and overheating when a high-speed thrust position is over-packed
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.
- Envelope-identical spherical roller bearings (same ISO 15 d×D×B) are not drop-in equivalents — they locate the shaft axially, while C 4032-2CS5V/GEM9 must float; the two are designed to be used as a pair.
- Never use C 4032-2CS5V/GEM9 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.
- 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.
- 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.
- The 830/1290 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
What does C 4032-2CS5V/GEM9 mean in SKF part numbering?
C marks CARB; 40 the dimension series; the size code gives 160 mm bore; 2CS5V/GEM9 is the execution (cylindrical bore for direct shaft fitting, 2CS5V/GEM9 sealed full-complement execution with annular groove). The envelope follows ISO 15 and matches spherical roller bearing outlines, but the functions differ.
Why is C 4032-2CS5V/GEM9 used opposite a spherical roller bearing?
The spherical bearing locates the shaft and takes thrust; the CARB bearing at the other end self-aligns but floats, absorbing thermal expansion without inducing axial load. The pair is standard on paper machine drying cylinders and long caster rolls.
Is the C 4032-2CS5V/GEM9 sealed?
Yes — this is a sealed full-complement execution (2CS5V contact seals with annular groove), greased at the factory; the catalogue lists no reference speed and the limiting speed is 60 r/min.
What fails first on a misapplied CARB bearing?
Blocking the designed axial float — clamping the free end or locating both shaft ends — turns thermal growth into edge loading and spalls the toroidal raceways. Cage damage and ordinary fatigue follow overload or dry running.
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.