C3076-KM-OH3076-H bearing: complete specifications & equivalents
The C3076-KM-OH3076-H is a ISO 15 radial bearing sized 360 x 560 x 135 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 360 mm |
| Outer diameter D | 560 mm |
| Width B | 135 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 3000 kN |
| Basic static load rating C0 | 5200 kN |
| Fatigue load limit Pu | 380 kN |
| Reference speed (thermal) | 900 rpm |
| Limiting speed (mechanical) | 1200 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 145000 g |
| Manufacturer designation | SKF C 3076 KM + OH 3076 H |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves |
| Last verified | 2026-09-29 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves) · extracted 2026-09-29
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves); 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 & carb-adapter-sleeve range
| Bore d | 14.173 in |
|---|---|
| Outer diameter D | 22.047 in |
| Width B | 5.315 in |
| ISO bore code | 76 |
| Radial section height (D−d)/2 | 100 mm |
| Smallest bore in carb-adapter-sleeve | 25 mm |
| Largest outer diameter in carb-adapter-sleeve | 1580 mm |
| Width range across carb-adapter-sleeve | 20–462 mm |
| Bore position in carb-adapter-sleeve (smallest first) | 33 of 51 |
| Bore above smallest carb-adapter-sleeve size | 335 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| C3076 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
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 C3076-KM-OH3076-H model number is decoded
Sleeve discipline: OH 3076 H and bearing C 3076 KM are ground as a matched taper pair — the sleeve's seat diameter and the bearing's bore taper are manufactured together, which is why the catalogue lists the combination as one order number (C3076-KM-OH3076-H). Dividing C 3000 kN by the 380 mm bore gives 7.89 kN per millimetre of journal — compare this density against neighbouring CARB sizes when the 360 mm seat is fixed and the life requirement is not. Mounting C3076-KM-OH3076-H: clean the 360 mm seat, slip on sleeve+bearing as one unit, seat against the housing bore 560 mm H7, then drive the withdrawal sleeve up its cone in small steps, checking radial internal clearance after each step until the catalogue residual clearance for the K bore is reached. Housing side of C3076-KM-OH3076-H is conventional: a 560 mm H7 bore takes the CARB outer ring, which is free to slide axially in the housing — the toroidal raceway handles the misalignment and the sleeve side handles the location on the 360 mm shaft.In SKF catalogue PUB BU/P1 17000, C3076-KM-OH3076-H appears as bearing C 3076 KM + withdrawal sleeve OH 3076 H: the non-locating CARB principle combined with a tapered-bore sleeve seat for a 360 mm shaft.Digit by digit, C3076-KM-OH3076-H = CARB bearing C 3076 KM (380 mm bore, 560 mm OD, 135 mm width) + withdrawal sleeve OH 3076 H for the 360 mm cylindrical shaft seat; cage and tolerance letters stay with the bearing half of the designation.
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
- paper machine drying cylinders and calender rolls with long, thermally expanding shafts
Known failure patterns
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
- overheating from a preload set at mounting when sleeve travel overshot the catalogue clearance
- raceway spalling of the CARB bearing after the catalogue L10 life under contaminated lubrication
- sleeve creep on the shaft seat when the sleeve was not driven to its marked travel or clearance
- misalignment edge loading when the housing bore is out of square with the shaft seat
Selection pitfalls — read before you substitute
- Contamination discipline: the CARB bearing is open (this execution has no seals); flush the housing before mounting C3076-KM-OH3076-H and maintain the lubricant filtration — hard particles indent the toroidal raceway quickly at heavy load.
- Contamination discipline: the CARB bearing is open (this execution has no seals); flush the housing before mounting C3076-KM-OH3076-H and maintain the lubricant filtration — hard particles indent the toroidal raceway quickly at heavy load.
- Never set C3076-KM-OH3076-H by locknut torque or "feel": the withdrawal sleeve travel defines the clearance of the 380 mm CARB bearing — measure residual radial clearance during mounting, in steps.
- The 3000/5200 kN ratings are SKF catalogue 17000 values for the CARB bearing; SKF can revise internal geometry without changing the order number, so keep the catalogue version (PUB BU/P1 17000/1 EN, 2018) with the specification.
- Quote the full unit designation SKF C 3076 KM + OH 3076 H when purchasing — bearing and sleeve execution letters are part of the order number and define the matched taper pair.
Frequently asked questions
What are the dimensions and catalogue data of C3076-KM-OH3076-H?
The unit is CARB bearing C 3076 KM on withdrawal sleeve OH 3076 H, fitting a 360 mm shaft (14.173 in), housing bore 560 mm, bearing width 135 mm. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 3000 kN, C0 5200 kN, fatigue load limit Pu 380 kN, combined mass about 145.0 kg. Reference speed 900 r/min, limiting speed 1,200 r/min (bearing values).
Why does C3076-KM-OH3076-H list a 360 mm shaft size when the bearing bore is 380 mm?
The sleeve takes up the difference: the withdrawal sleeve OH 3076 H has a tapered outside that engages the bearing's 380 mm tapered bore and a cylindrical bore that seats on the 360 mm shaft. The catalogue's principal dimensions describe the mounted result — shaft seat, housing bore and bearing width — not the bearing bore alone.
Is C3076-KM-OH3076-H a locating or non-locating bearing?
Non-locating. The CARB toroidal roller bearing is designed as the free end of the shaft: its raceway geometry tolerates misalignment and allows axial float, while a separate locating bearing (typically a spherical roller or paired taper) takes the thrust. The sleeve does not change this function.
Can I buy the bearing C 3076 KM and the sleeve OH 3076 H separately?
The components are catalogued separately, but the taper pair is matched — the sleeve seat and the bearing bore are manufactured to the same execution. Ordering the unit C3076-KM-OH3076-H as one catalogue line keeps bearing and sleeve compatible; if ordering separately, quote both full designations including execution letters.
How is the clearance of C3076-KM-OH3076-H set at mounting?
By driving the adapter sleeve up its conical seat: the sleeve expands on the 360 mm shaft and onto the bearing bore, reducing the radial internal clearance. Mount in steps and measure residual clearance until it reaches the catalogue value for the K bore — never set it by nut torque alone.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 10.2-10.3 CARB on sleeves on 2026-09-29. Read our editorial & correction policy.