C2320 bearing: complete specifications & equivalents
The C2320 is a ISO 15 radial bearing sized 100 x 215 x 73 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 100 mm |
| Outer diameter D | 215 mm |
| Width B | 73 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel |
| Basic dynamic load rating C | 800 kN |
| Basic static load rating C0 | 880 kN |
| Fatigue load limit Pu | 90 kN |
| Reference speed (thermal) | 2600 rpm |
| Limiting speed (mechanical) | 3600 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 12500 g |
| Manufacturer designation | C 2320 |
| 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 & C2300-series range
| Bore d | 3.937 in |
|---|---|
| Outer diameter D | 8.465 in |
| Width B | 2.874 in |
| ISO bore code | 20 |
| Radial section height (D−d)/2 | 57.5 mm |
| Smallest bore in C2300-series | 70 mm |
| Largest outer diameter in C2300-series | 280 mm |
| Width range across C2300-series | 51–93 mm |
| Bore position in C2300-series (smallest first) | 7 of 8 |
| Bore above smallest C2300-series size | 30 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C2320-K | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 100×215×73 mm ISO 15 envelope and equivalent catalogue C/C0; C 2320 K is the 1:12 tapered-bore K steel-caged execution of this size — boundary dimensions interchangeable, only mounting and cage execution differ. |
| 22320 | SKF | full Dimensions and internal design equivalent — standard interchange. | Envelope-identical (100×215×73 mm) SKF spherical roller bearing SKF 22320 E with ratings within 10 % — not a drop-in substitute: SKF 22320 E locates the shaft axially while the CARB bearing must float; the two are designed to run as a locating/non-locating pair. |
| 22320-EK | SKF | full Dimensions and internal design equivalent — standard interchange. | Envelope-identical (100×215×73 mm) SKF spherical roller bearing SKF 22320 EK with ratings within 10 % — not a drop-in substitute: SKF 22320 EK 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 C2320 model number is decoded
C 2320 belongs to the CARB family — compact aligning roller bearings: envelope 100×215×73 mm, radial rating 800/880 kN C/C0, and no axial-locating function by design. Reading the code: C marks the CARB toroidal family, the first two digits (23) identify the ISO dimension series and the last two (20) encode the 100 mm bore; suffixes describe bore and execution. The cylindrical 100 mm bore mounts directly on a machined seat; the outer ring takes a loose housing fit so the bearing can float axially. The same size is listed in both bore executions, and the boundary dimensions 100×215×73 mm are identical — only the mounting method changes. Speed planning separates the 2,600 r/min thermal reference from the 3,600 r/min mechanical limiting speed. The full-complement V executions carry more load but list no thermal reference speed; the steel-caged executions run faster and cooler at light load. Mounting: slide the bearing onto the 100 mm seat or heat it (max 120 °C) and seat it square; never press through the 73 mm roller set, and leave the free-end housing shoulder clear so axial float is unrestricted.
Typical equipment & failure modes
Common applications
- 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
- heavy industrial gearbox layshafts used as the non-locating position
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
- brass cage pocket wear under marginal lubrication in the large-bore M/MB executions
- rolling-contact fatigue spalling after the catalogue L10 life is exhausted
- grease churning and overheating when a high-speed thrust position is over-packed
Selection pitfalls — read before you substitute
- At 100 mm bore, shaft expansion is already measurable: calculate the required float inside the 73 mm wide bearing rather than assuming the free-end clearance is "enough" at operating temperature.
- The quoted 800/880 kN ratings belong to this exact execution (C 2320); 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.
- Tapered-bore K executions mount on adapter sleeves (1:12) and K30 on withdrawal sleeves (1:30) — the 100 mm bore changes the sleeve family, and the drive-up procedure differs accordingly.
- Reference and limiting speeds are different limits: the 2,600 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 800/880 kN ratings and 12500 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
Which dimensions does the C 2320 have?
A C 2320 measures 100 mm bore × 215 mm outside diameter × 73 mm width (3.937 × 8.465 × 2.874 in). From SKF catalogue PUB BU/P1 17000: dynamic C 800 kN, static C0 880 kN, fatigue limit Pu 90 kN, reference speed 2,600 r/min, limiting speed 3,600 r/min, mass about 12500 g.
What does C 2320 mean in SKF part numbering?
C marks CARB; 23 the dimension series; the size code gives 100 mm bore; the bare number is the execution (cylindrical bore for direct shaft fitting, pressed steel cage). The envelope follows ISO 15 and matches spherical roller bearing outlines, but the functions differ.
Why is C 2320 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 2320 sealed?
No, it is an open execution relying on the housing seals; relubrication follows the groove/hole features of the size.
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.