SKF K55X63X25 Needle roller and cage assembly (K / KBK / KZK)
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Product Description
SKF K55X63X25 needle roller and cage assembly (k / kbk / kzk). Needle roller and cage assembly with no supplied inner or outer race — installed between a hardened, ground shaft and a hardened, ground housing bore. Provides the smallest possible radial cross-section. Series K / KBK per ISO 3245. Suitable for planetary-gear pinions, universal-joint yokes.
Technical Specifications
- Type
- Needle roller and cage assembly (K / KBK / KZK)
- Designation
- SKF K55X63X25
- HS code
- 8482.40
- Bore diameter of needle roller complement
- 55 mm
- Outside diameter
- 63 mm
- Outside diameter of needle roller complement
- 63 mm
- Width
- 25 mm
- Basic dynamic load rating
- 49.5 kN
- Basic static load rating
- 104 kN
- Reference speed
- 7500 r/min
- Limiting speed
- 8500 r/min
- Bearing part
- Needle roller and cage assembly
- Number of rows
- 1
- Outer ring type
- Not applicable
- Aligning feature
- Without
- Cage
- Sheet steel
- Tolerance class
- Normal
- Material, bearing
- Bearing steel
- Coating
- Without
- Sealing
- Without
- Lubricant
- None
- Relubrication feature
- Without
- Indicative carbon footprint for new product
- 0.29 kg CO2e
- Product net weight
- 0.0788 kg
- eClass code
- 23-05-09-03
- UNSPSC code
- 31171512
Standards & Compliance
- Standard
- SKF designation convention
- Material
- As declared by SKF designation suffix
- Temperature Range
- Per SKF product data
- HS Code
- 8482.40
Cross References
- INA 556325
- Torrington / Timken 556325
- IKO 556325
- NTN 556325
- Equivalent: 556325 (INA)
- Equivalent: 556325 (Torrington / Timken)
- Equivalent: 556325 (IKO)
- Equivalent: 556325 (NTN)
Compatibility & Fitment
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix 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 K55X63X25?
- K55X63X25 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 K55X63X25.
- What is the HS code for K55X63X25?
- The customs tariff (HS) code for K55X63X25 is 8482.40.
- Who manufactures K55X63X25?
- K55X63X25 is a SKF product in the Bearings & Power Transmission range.
- Is a datasheet available for K55X63X25?
- Yes — the K55X63X25 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for K55X63X25?
- The minimum order quantity is 1.
- Is K55X63X25 available?
- Yes — K55X63X25 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).