SKF W639/2-2Z Deep-groove ball bearing
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Product Description
SKF W639/2-2Z deep-groove ball bearing. Deep-groove ball bearing designed for combined radial and moderate axial load, high running speed and low frictional torque. Manufactured to ISO 492 (Class Normal / P6 / P5) with standard C0 radial internal clearance unless a suffix declares otherwise. Available in open, single-shielded (Z), double-shielded (2Z), single-lip contact-sealed (RSH / RS1), and double-lip contact-sealed (2RSH / 2RS1) execution.
Technical Specifications
- Type
- Deep-groove ball bearing
- Designation
- SKF W639/2-2Z
- HS code
- 8482.10
- Bore diameter
- 2 mm
- Outside diameter
- 6 mm
- Width
- 3 mm
- Basic dynamic load rating
- 0.19 kN
- Basic static load rating
- 0.051 kN
- Reference speed
- 180000 r/min
- Limiting speed
- 90000 r/min
- Filling slots
- Without
- Number of rows
- 1
- Locating feature, bearing outer ring
- Without
- Bore type
- Cylindrical
- Cage
- Stamped stainless steel
- Matched arrangement
- No
- Radial internal clearance
- CN
- Material, bearing
- Stainless steel
- Coating
- Without
- Sealing
- Shield on both sides
- Sealing type
- Non-contact
- Lubricant
- Grease
- Relubrication feature
- Without
- Indicative carbon footprint for new product
- 0.0007 kg CO2e
- Product net weight
- 0.0002 kg
- eClass code
- 23-05-08-01
- UNSPSC code
- 31171504
Standards & Compliance
- Standard
- SKF designation convention
- Material
- As declared by SKF designation suffix
- Temperature Range
- Per SKF product data
- HS Code
- 8482.10
Cross References
- Timken 63922
- NSK 63922
- NTN 63922
- FAG 63922
- Koyo 63922
- NACHI 63922
- Equivalent: 63922 (Timken)
- Equivalent: 63922 (NSK)
- Equivalent: 63922 (NTN)
- Equivalent: 63922 (FAG)
- Equivalent: 63922 (Koyo)
- Equivalent: 63922 (NACHI)
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: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy W639/2-2Z?
- W639/2-2Z 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 W639/2-2Z.
- What is the HS code for W639/2-2Z?
- The customs tariff (HS) code for W639/2-2Z is 8482.10.
- Who manufactures W639/2-2Z?
- W639/2-2Z is a SKF product in the Bearings & Power Transmission range.
- Is a datasheet available for W639/2-2Z?
- Yes — the W639/2-2Z datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for W639/2-2Z?
- The minimum order quantity is 1.
- Is W639/2-2Z available?
- Yes — W639/2-2Z 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).