SKF 6221 Deep-groove ball bearing
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Product Description
SKF 6221 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. Bore, outside diameter and width follow the ISO 15 dimension plan. Boundary plan per ISO 15: bore d = 105 mm, outside diameter D = 190 mm, width B = 36 mm.
Technical Specifications
- Type
- Deep-groove ball bearing
- Designation
- SKF 6221
- Standard
- ISO 15 / DIN 623 dimension plan; ISO 492 Class Normal precision
- Bore d
- 105 mm
- Outside diameter D
- 190 mm
- Width B
- 36 mm
- HS code
- 8482.10
- Bore diameter
- 105 mm
- Outside diameter
- 190 mm
- Width
- 36 mm
- Basic dynamic load rating
- 140 kN
- Basic static load rating
- 104 kN
- Reference speed
- 7000 r/min
- Limiting speed
- 4500 r/min
- SKF performance class
- SKF Explorer
- Filling slots
- Without
- Number of rows
- 1
- Locating feature, bearing outer ring
- Without
- Bore type
- Cylindrical
- Cage
- Sheet metal
- Matched arrangement
- No
- Radial internal clearance
- CN
- Material, bearing
- Bearing steel
- Coating
- Without
- Sealing
- Without
- Relubrication feature
- Without
- Indicative carbon footprint for new product
- 13.8 kg CO2e
- Product net weight
- 3.73 kg
- eClass code
- 23-05-08-01
- UNSPSC code
- 31171504
- Lubricant
- None
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
- 8482.10
Cross References
- Timken 6221
- NSK 6221
- NTN 6221
- FAG 6221
- Koyo 6221
- NACHI 6221
- Equivalent: 6221 (Timken)
- Equivalent: 6221 (NSK)
- Equivalent: 6221 (NTN)
- Equivalent: 6221 (FAG)
- Equivalent: 6221 (Koyo)
- Equivalent: 6221 (NACHI)
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 6221?
- 6221 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 6221.
- What is the HS code for 6221?
- The customs tariff (HS) code for 6221 is 8482.10.
- Who manufactures 6221?
- 6221 is a SKF product in the Bearings & Power Transmission range.
- Is a datasheet available for 6221?
- Yes — the 6221 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 6221?
- The minimum order quantity is 1.
- Is 6221 available?
- Yes — 6221 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).