SKF 23156 CACK/C2W33 spherical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Spherical roller bearings
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Decoding SKF 23156 CACK/C2W33
- 231Series
- Spherical roller bearings, 231 series. Series differ in outside diameter and width even when the bore is the same.
- 56Bore
- Bore 280 mm (56 × 5).
- CACK/C2W33Suffix
- SKF suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
23156 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
SKF 23156 CACK/C2W33 measures 280 mm across the bore and 460 mm across the outside diameter; its width is 146 mm (280 x 460 x 146 mm).
SKF 23156 CACK/C2W33 belongs to spherical roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 23156 CACK/C2W33 and any equivalents.
SKF CACK series spherical roller bearings are double-row, self-aligning units built for high radial loads and angular misalignment. Maintenance and purchasing teams specify them in heavy equipment where shafts deflect or alignment is less than perfect, including conveyors, mills, and gearboxes. MR Industrial Accessories supplies this line and can help you match the right suffix to your application.
The bearing code tells you what you are getting. Take 23072 CACK/C3W33: 23072 is the ISO size number; CA means a one-piece machined brass cage; C is the optimized internal design; K is a tapered bore with 1:12 taper; /C3 is radial internal clearance greater than normal; and W33 is a lubrication groove plus three holes in the outer ring. In 23252 CACK/C08W507, C08 is a special clearance and W507 is a variant with a specific lubricant and protection. Reading these suffixes correctly lets you order the exact replacement.
These bearings show up across cement, mining, steel, paper and pulp, and aggregate processing. You will find them in crushers, vibrating screens, ball mills, rotary kilns, industrial fans, and large gearboxes, wherever loads are high and conditions are tough. Their self-aligning behavior suits shafts that bend under load.
Selection comes down to radial and axial load, speed, and mounting method. A K tapered bore mounts on a tapered shaft or an adapter sleeve, which makes internal clearance adjustment easier. Choose C3 or C2 clearance based on operating temperature and shaft fit. Follow the manufacturer's lubrication guidance for grease or oil; the W33 groove simplifies relubrication. Align the bearing initially and seal it properly to keep contamination out.
When comparing brands, remember that each maker uses its own suffixes for cages, clearances, and variants. An SKF 23072 CACK/C3W33 may have a counterpart elsewhere under different nomenclature, but they are not always interchangeable until dimensions and tolerances are checked. MR Industrial Accessories can help you find the right option while respecting your equipment's specifications. Always confirm the full code and operating conditions before replacing.
Dimensions
280 x 460 x 146 mm (d x D x B): boundary dimensions for basic designation 23156, according to ISO 15.
- Bore
- 280mm
- Outside diameter (D)
- 460mm
- Width (B)
- 146mm
Same size, other brands
Other brands' pages with basic designation 23156: 280 x 460 x 146 mm (d x D x B) per ISO 15.
- FAG23156-BE-XL23156-BE-XL-K23156-BE-XL-2RSR1 more →
- LINK-BELT23156LBC323156LBKC3
- NSK23156CAME423156CAMKE4
- NTN23156EMD123156EMKD1
- RKB23156
- TIMKEN23156EJ23156EMB
What they share are the ISO 15 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- SKF 23156 CACK/C2W33 bearing: what are its dimensions?
- SKF 23156 CACK/C2W33 measures 280 mm across the bore and 460 mm across the outside diameter; its width is 146 mm (280 x 460 x 146 mm). Those are the boundary dimensions standardized in ISO 15 for basic designation 23156.
- What does CACK mean in an SKF bearing?
- CACK combines three features: CA is a one-piece machined brass cage, C is the optimized internal design, and K is a tapered bore with 1:12 taper. Together they suit mounting on a tapered shaft or adapter sleeve with high load capacity.
- When should I use C3 clearance instead of CN?
- Pick C3 when the bearing runs at elevated temperatures or with interference fits that reduce internal clearance, and when shaft deflection or loads cause deformation. CN is for standard conditions.
- Are SKF CACK bearings interchangeable with other brands?
- Dimensional equivalents may exist, but suffixes and internal designs differ. They are not interchangeable without verifying dimensions, tolerances, and load capacity. Send us the complete code and we will advise.