SKF 23256CACK/C4W33 Spherical roller bearing
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Product Description
SKF 23256CACK/C4W33 spherical roller bearing. Self-aligning double-row spherical roller bearing designed for very heavy radial load with concurrent axial load in either direction, and inherent tolerance for shaft-to-housing misalignment. Two rows of symmetrical rollers ride on a common concave outer-ring raceway. Common execution suffixes cover CC (window-type cage), CA (machined brass cage), EK (tapered bore for adapter-sleeve mount), and W33 (annular groove and three lubrication holes in outer ring). Manufactured to ISO 492 Class Normal / P6. Bore diameter d = 165 mm per ISO 15.
Technical Specifications
- Type
- Spherical roller bearing
- Designation
- SKF 23256CACK/C4W33
- Standard
- ISO 15 / DIN 623 dimension plan; ISO 492 Class Normal precision
- HS code
- 8482.20
- Bore diameter
- 280 mm
- Outside diameter
- 500 mm
- Width
- 176 mm
- Basic dynamic load rating
- 3425 kN
- Basic static load rating
- 4900 kN
- Reference speed
- 800 r/min
- Limiting speed
- 1100 r/min
- SKF performance class
- SKF Explorer
- Number of rows
- 2
- Locating feature, bearing outer ring
- Without
- Bore type
- Tapered 1:12
- Cage
- Machined brass
- Radial internal clearance
- C4
- Tolerance class for dimensions
- Normal
- Tolerance class for run-out
- P5
- Sealing
- Without
- Lubricant
- None
- Relubrication feature
- With
- Candidate for remanufacturing
- Yes
- Indicative carbon footprint for new product
- 530 kg CO2e
- Indicative carbon footprint for remanufactured product
- 176 kg CO2e
- Product net weight
- 143 kg
- eClass code
- 23-05-09-11
- UNSPSC code
- 31171510
Standards & Compliance
- Standard
- ISO 15 / ISO 492 / DIN 623
- Material
- Bearing steel — 100Cr6 (through-hardened) or SNR-nitrided; cage as declared by suffix
- Temperature Range
- -30 to +120 °C standard grease
- HS Code
- 8482.20
Cross References
- Timken 23256433
- NSK 23256433
- NTN 23256433
- FAG 23256433
- Koyo 23256433
- Equivalent: 23256433 (Timken)
- Equivalent: 23256433 (NSK)
- Equivalent: 23256433 (NTN)
- Equivalent: 23256433 (FAG)
- Equivalent: 23256433 (Koyo)
Compatibility & Fitment
ISO 15 boundary-plan interchange — the numeric bore-code block is portable across every ISO 15 bearing manufacturer (SKF, Timken, NSK, NTN, FAG, Koyo, NACHI). Confirm suffix compatibility on cage, seal, clearance and precision class before substitution.
Product Documentation
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Technical guides
Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 23256CACK/C4W33?
- 23256CACK/C4W33 can be ordered from cballast.com as a SKF catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this SKF product?
- The manufacturer part number is 23256CACK/C4W33.
- What is the HS code for 23256CACK/C4W33?
- The customs tariff (HS) code for 23256CACK/C4W33 is 8482.20.
- Who manufactures 23256CACK/C4W33?
- 23256CACK/C4W33 is a SKF product in the Bearings & Power Transmission range.
- Is a datasheet available for 23256CACK/C4W33?
- Yes — the 23256CACK/C4W33 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 23256CACK/C4W33?
- The minimum order quantity is 1.
- Is 23256CACK/C4W33 available?
- Yes — 23256CACK/C4W33 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).