23136 bearing: complete specifications & equivalents
The 23136 is a ISO 15 radial bearing sized 180 x 300 x 96 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 180 mm |
| Outer diameter D | 300 mm |
| Width B | 96 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 1263 kN |
| Basic static load rating C0 | 1760 kN |
| Fatigue load limit Pu | 160 kN |
| Reference speed (thermal) | 1700 rpm |
| Limiting speed (mechanical) | 2200 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 28000 g |
| Manufacturer designation | SKF 23136 CC/W33 |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings |
| Last verified | 2026-09-26 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings) · extracted 2026-09-26
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical 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 & 23100-series range
| Bore d | 7.087 in |
|---|---|
| Outer diameter D | 11.811 in |
| Width B | 3.78 in |
| ISO bore code | 36 |
| Radial section height (D−d)/2 | 60 mm |
| Smallest bore in 23100-series | 100 mm |
| Largest outer diameter in 23100-series | 790 mm |
| Width range across 23100-series | 52–248 mm |
| Bore position in 23100-series (smallest first) | 9 of 25 |
| Bore above smallest 23100-series size | 80 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 23136 | ISO 15 | full Dimensions and internal design equivalent — standard interchange. | ISO 15 boundary-dimension envelope; D/B cross-verified against Schaeffler HR1 2022; brand-specific OEM equivalents (NSK/FAG/NTN) pending multi-source data. |
| 23136-CCK-W33 | SKF | full Dimensions and internal design equivalent — standard interchange. | Tapered-bore (1:12) execution on H3136 adapter sleeve; same ISO 15 envelope, separate order number. |
| C3136 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF CARB toroidal bearing C 3136 shares the 180×300×96 mm envelope with ratings within 10 %; it self-aligns but floats axially and cannot locate the shaft — locating/non-locating pair, not a substitute. |
| C3136-K | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF CARB toroidal bearing C 3136 K shares the 180×300×96 mm envelope with ratings within 10 %; it self-aligns but floats axially and cannot locate the shaft — locating/non-locating pair, not a substitute. |
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 23136 model number is decoded
Ordering number 23136 CC/W33 in SKF catalogue PUB BU/P1 17000 denotes a double-row spherical roller bearing for a 180 mm shaft, dimension series 31 (medium OD, wide), with open execution and two pressed-steel cages with a floating guide ring. Digit by digit, 23136 reads as bearing type 2 (spherical roller, two barrel-roller rows), dimension series 31, and bore reference 36 resolving to 180 mm; 300 mm OD and 96 mm width are the matching ISO 15 boundary values. In SKF suffix language, E marks the optimized high-capacity design and CC/W33 the pressed-steel-cage execution with relubrication groove; both are open bearings — the sealed variant carries the 2CS5 suffix and the vibrating-screen execution VA405. Catalogue mass 28000 g for the 180×300×96 mm open execution covers the two pressed-steel cages with a floating guide ring; tapered-bore and sealed variants differ in mass and carry their own order numbers. After mounting, swing the outer ring to confirm free self-alignment: the 23136 should tilt through its full catalogue misalignment range without binding; a stiff joint signals a cocked seat or shoulder interference.
Typical equipment & failure modes
Common applications
- large dredger and marine winch drums
- steel-plant continuous-caster segments
- large induced-draft fan rotors
- SAG and ball-mill drive shafts
Known failure patterns
- raceway fatigue spalling of the sphered outer raceway after extended service above the catalogue L10 rating
- inner-ring raceway spalling from edge loading when misalignment exceeds the self-aligning recovery range
- cage pocket wear or fracture from roller skew at insufficient minimum load or rapid acceleration
- roller-end scoring from starved lubricant at start-up before the grease channel purges
- brinelling from static overload or impact during handling and mounting
Selection pitfalls — read before you substitute
- At 180 mm bore the ring mass makes cocking during mounting a real risk; guide the bearing square, confirm seat contact around the full circumference, and re-check the self-aligning swing after the housing cap is torqued down.
- The 23100-series series at 180 mm bore (300×96 mm) is the medium-OD wide envelope for heavy continuous duty; it is wider than a 222 bearing in the same OD class, so housing width and spacer stack must be re-checked before substitution.
- Never use the tapered-bore EK/K variant's drive-up figures on this cylindrical-bore 23136; clearance reduction targets differ, and over-driving a cylindrical bore onto an oversized journal cracks the inner ring.
- The 28000 g mass and 96 mm width mean abutment faces must be square to the axis within the bearing's own P0 tolerance; a tilted spacer tilts the outer ring and concentrates load on one roller row of 23136.
- The 1263/1760 kN ratings are SKF catalogue values for this exact execution (23136 CC/W33); SKF can revise internal geometry without changing the order number, so keep the catalogue version (SKF catalogue PUB BU/P1 17000) with the specification and re-verify for critical drives.
- SKF lists several executions of 23136 (cylindrical bore as listed, tapered-bore 23136 CCK/W33 variant, plus sealed and vibrating-screen options in the same envelope); they are not interchangeable order numbers — quote the full 23136 CC/W33 designation when purchasing.
Frequently asked questions
What are the dimensions and catalogue data of 23136?
The 23136 CC/W33 is a double-row spherical roller bearing with 180 mm bore, 300 mm outer diameter and 96 mm width (7.087 × 11.811 × 3.78 in) per ISO 15. From SKF catalogue PUB BU/P1 17000: basic dynamic load rating C 1263 kN, C0 1760 kN, fatigue load limit Pu 160 kN, reference speed 1,700 r/min, limiting speed 2,200 r/min, mass about 28000 g. It is an open, self-aligning bearing with two pressed-steel cages with a floating guide ring.
How does the 23136 bore code work?
The last two digits of 23136 are bore code 36, so 36 × 5 = 180 mm bore. The 300 mm OD and 96 mm width come from the ISO 15 dimension-series plan (dimension series 31 (medium OD, wide)), shared with other spherical roller bearings of the same code.
What does the CC/W33 suffix mean on 23136?
CC denotes two pressed-steel cages with a floating guide ring between the roller rows, and W33 adds an annular groove plus three lubrication holes in the outer ring for relubrication. CCK/W33 is the 1:12 tapered-bore counterpart.
Can 23136 accommodate misalignment and axial load?
Yes on both counts. The sphered outer raceway lets the bearing self-align ≈ 0.5–2.5° depending on series, absorbing shaft deflection and housing-seat errors. The two barrel-roller rows also carry bidirectional axial load in addition to heavy radial load — this is the key difference from cylindrical roller bearings, which take no axial load.
When should the tapered-bore 23136K variant be used instead?
Choose the K (1:12 tapered bore) variant when the bearing must seat on an adapter or withdrawal sleeve — typical for long shafts, frequent dismounting, or stepped shafts where machining a precision journal is impractical. Sleeve mounting requires measuring clearance reduction or axial drive-up, not nut torque. The cylindrical-bore 23136 listed here seats directly on a machined journal.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 9.1 spherical roller bearings on 2026-09-26. Read our editorial & correction policy.