SKF 6221 Deep-groove ball bearing

SKF · Bearings & Power Transmission · Deep Groove Ball Bearings · Sweden · skf.com

Part Number
6221 · HS 8482.10

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

Properties

Material	Bearing steel — 100Cr6 (through-hardened) or SNR-nitrided; cage as declared by suffix
Temperature range	-30 to +120 °C standard grease
Primary standard	ISO 15 / ISO 492 / DIN 623
Dimensions	105 × 190 × 36 mm (bore d × OD D × width B)
MOQ	1

Compatibility

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.

Standards

ISO 15
ISO 492
DIN 623

Cross-References

Timken 6221
NSK 6221
NTN 6221
FAG 6221
Koyo 6221
NACHI 6221

Attached Documents

SKF 6221 Deep-groove ball bearing — Specification sheet