C2213-KTN9 bearing: complete specifications & equivalents
The C2213-KTN9 is a ISO 15 radial bearing sized 65 x 120 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 | 65 mm |
| Outer diameter D | 120 mm |
| Width B | 31 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | polymer (PA66 glass-fibre reinforced) |
| Basic dynamic load rating C | 180 kN |
| Basic static load rating C0 | 180 kN |
| Fatigue load limit Pu | 21.2 kN |
| Reference speed (thermal) | 5300 rpm |
| Limiting speed (mechanical) | 7500 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1450 g |
| Manufacturer designation | C 2213 KTN9 |
| 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 | 2.559 in |
|---|---|
| Outer diameter D | 4.724 in |
| Width B | 1.22 in |
| ISO bore code | 13 |
| 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) | 8 of 21 |
| Bore above smallest C2200-series size | 35 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C2213-TN9 | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 65×120×31 mm ISO 15 envelope and equivalent catalogue C/C0; C 2213 TN9 is the cylindrical-bore TN9 PA66-caged execution of this size — boundary dimensions interchangeable, only mounting and cage execution differ. |
| C2213-V | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 65×120×31 mm envelope, but catalogue C/C0 differ between the 1:12 tapered-bore K TN9 PA66-caged and cylindrical-bore full-complement V executions (180/180 kN vs 204/216 kN) — envelope match, not a load-rating equivalent. |
| C2213-KV | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 65×120×31 mm envelope, but catalogue C/C0 differ between the 1:12 tapered-bore K TN9 PA66-caged and 1:12 tapered-bore K full-complement V executions (180/180 kN vs 204/216 kN) — envelope match, not a load-rating equivalent. |
| 22213 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 65×120×31 mm envelope as the SKF spherical roller bearing SKF 22213 E, but catalogue C/C0 differ (180/180 kN vs 198/216 kN) — and the functions differ: spherical locates axially, CARB floats. Pair them; never swap one-for-one. |
| 22213-EK | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 65×120×31 mm envelope as the SKF spherical roller bearing SKF 22213 EK, but catalogue C/C0 differ (180/180 kN vs 198/216 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 C2213-KTN9 model number is decoded
C 2213 KTN9 belongs to the CARB family — compact aligning roller bearings: envelope 65×120×31 mm, radial rating 180/180 kN C/C0, and no axial-locating function by design. SKF builds the CARB order number from size plus execution: the bare number C 2213 is the steel-caged cylindrical-bore bearing, K (or K30) makes the bore tapered for sleeve mounting, and the cage/seal letters follow — here KTN9. The K suffix gives a 1:12 tapered 65 mm bore, mounted on an adapter (H) sleeve so the bearing can be driven up to the specified clearance. The same size is listed in both bore executions, and the boundary dimensions 65×120×31 mm are identical — only the mounting method changes. Float capacity is a selection criterion: the catalogue lists the permissible axial displacement (s) for the 31 mm wide set; size the free-end housing so thermal growth stays within it, not just inside the overall width. Seat tolerances follow the ISO 15 recommendation for the normal-load position — the 120 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
- 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
- paper machine drying cylinders and calender rolls with long, thermally expanding shafts
Known failure patterns
- roller-end and flange smearing after lubricant starvation at the long roller contacts
- 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 65 mm bore the small CARB executions are unusually wide (31 mm) for their 120 mm OD — confirm the housing width before substituting a standard spherical bearing of the same bore.
- Tapered-bore K executions mount on adapter sleeves (1:12) and K30 on withdrawal sleeves (1:30) — the 65 mm bore changes the sleeve family, and the drive-up procedure differs accordingly.
- Reference and limiting speeds are different limits: the 5,300 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.
- Envelope-identical spherical roller bearings (same ISO 15 d×D×B) are not drop-in equivalents — they locate the shaft axially, while C 2213 KTN9 must float; the two are designed to be used as a pair.
- Never use C 2213 KTN9 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 180/180 kN ratings and 1450 g mass are SKF catalogue values transcribed from ch. 10.1 of PUB BU/P1 17000 (PDF table page 858); 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
Is the C 2213 KTN9 sealed?
No, it is an open execution relying on the housing seals; relubrication follows the groove/hole features of the size.
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.
Which dimensions does the C 2213 KTN9 have?
A C 2213 KTN9 measures 65 mm bore × 120 mm outside diameter × 31 mm width (2.559 × 4.724 × 1.22 in). From SKF catalogue PUB BU/P1 17000: dynamic C 180 kN, static C0 180 kN, fatigue limit Pu 21.2 kN, reference speed 5,300 r/min, limiting speed 7,500 r/min, mass about 1450 g.
What does C 2213 KTN9 mean in SKF part numbering?
C marks CARB; 22 the dimension series; the size code gives 65 mm bore; KTN9 is the execution (tapered 1:12 bore for adapter (H) sleeve mounting, TN9 glass-fibre PA66 cage). The envelope follows ISO 15 and matches spherical roller bearing outlines, but the functions differ.
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.