C2215 bearing: complete specifications & equivalents
The C2215 is a ISO 15 radial bearing sized 75 x 130 x 31 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 75 mm |
| Outer diameter D | 130 mm |
| Width B | 31 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 196 kN |
| Basic static load rating C0 | 208 kN |
| Fatigue load limit Pu | 24 kN |
| Reference speed (thermal) | 4800 rpm |
| Limiting speed (mechanical) | 6700 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1600 g |
| Manufacturer designation | C 2215 |
| 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 & C2200-series range
| Bore d | 2.953 in |
|---|---|
| Outer diameter D | 5.118 in |
| Width B | 1.22 in |
| ISO bore code | 15 |
| Radial section height (D−d)/2 | 27.5 mm |
| Smallest bore in C2200-series | 30 mm |
| Largest outer diameter in C2200-series | 400 mm |
| Width range across C2200-series | 20–108 mm |
| Bore position in C2200-series (smallest first) | 10 of 21 |
| Bore above smallest C2200-series size | 45 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C2215-K | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 75×130×31 mm ISO 15 envelope and equivalent catalogue C/C0; C 2215 K is the 1:12 tapered-bore K steel-caged execution of this size — boundary dimensions interchangeable, only mounting and cage execution differ. |
| C2215-V | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×130×31 mm envelope, but catalogue C/C0 differ between the cylindrical-bore steel-caged and cylindrical-bore full-complement V executions (196/208 kN vs 220/240 kN) — envelope match, not a load-rating equivalent. |
| C2215-KV | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×130×31 mm envelope, but catalogue C/C0 differ between the cylindrical-bore steel-caged and 1:12 tapered-bore K full-complement V executions (196/208 kN vs 220/240 kN) — envelope match, not a load-rating equivalent. |
| 22215 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×130×31 mm envelope as the SKF spherical roller bearing SKF 22215 E, but catalogue C/C0 differ (196/208 kN vs 217/240 kN) — and the functions differ: spherical locates axially, CARB floats. Pair them; never swap one-for-one. |
| 22215-EK | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×130×31 mm envelope as the SKF spherical roller bearing SKF 22215 EK, but catalogue C/C0 differ (196/208 kN vs 217/240 kN) — and the functions differ: spherical locates axially, CARB floats. Pair them; never swap one-for-one. |
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 C2215 model number is decoded
C 2215 is a CARB toroidal roller bearing to ISO 15: a single row of long, symmetrical barrel-shaped rollers between guide flanges, sized 75×130×31 mm, as listed in SKF catalogue PUB BU/P1 17000 ch. 10.1. The designation C 2215 separates into C (CARB), 22 (dimension series), 15 (75 mm bore) and the bare number (cylindrical bore for direct shaft fitting, pressed steel cage); envelope 75×130×31 mm follows the ISO 15 plan. 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 75 mm seat. The 1600 g mass over the 75×130×31 mm envelope yields about 2.61 kN dynamic per millimetre of bore — the long toroidal rollers give this family its radial capacity density. Mounting: slide the bearing onto the 75 mm seat or heat it (max 120 °C) and seat it square; never press through the 31 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
- 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
- electrical erosion of raceways on VFD-driven shafts without grounding or insulation
- oil starvation at the sliding contact zones of large spherical roller thrust bearings on forced-feed trips
Selection pitfalls — read before you substitute
- At 75 mm bore the small CARB executions are unusually wide (31 mm) for their 130 mm OD — confirm the housing width before substituting a standard spherical bearing of the same bore.
- 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.
- Envelope-identical spherical roller bearings (same ISO 15 d×D×B) are not drop-in equivalents — they locate the shaft axially, while C 2215 must float; the two are designed to be used as a pair.
- Tapered-bore K executions mount on adapter sleeves (1:12) and K30 on withdrawal sleeves (1:30) — the 75 mm bore changes the sleeve family, and the drive-up procedure differs accordingly.
- Reference and limiting speeds are different limits: the 4,800 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 196/208 kN ratings and 1600 g mass are SKF catalogue values transcribed from ch. 10.1 of PUB BU/P1 17000 (PDF table page 860); 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 is the difference between V and TN9 CARB executions?
V is the full-complement execution with no cage — more rollers, higher C (196 kN here) but a lower speed ceiling and no thermal reference speed. TN9 is the glass-fibre PA66 caged execution, faster and quieter at somewhat lower load. C 2215 is the cylindrical bore for direct shaft fitting, pressed steel cage.
How is C 2215 mounted?
Slide or heat (max 120 °C) the bearing onto the 75 mm seat, give the outer ring a loose housing fit, leave the float travel unobstructed, and never press through the 31 mm roller set.
What are the dimensions and ratings of the C 2215?
A C 2215 measures 75 mm bore × 130 mm outside diameter × 31 mm width (2.953 × 5.118 × 1.22 in). From SKF catalogue PUB BU/P1 17000: dynamic C 196 kN, static C0 208 kN, fatigue limit Pu 24 kN, reference speed 4,800 r/min, limiting speed 6,700 r/min, mass about 1600 g.
Can a CARB bearing like C 2215 locate the shaft axially?
No — that is the defining feature. C 2215 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.
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.