What is the equivalent of a 6004ZZ bearing?

The 6004ZZ is a 20×42×12mm deep groove ball bearing with verified equivalents across multiple brands: FAG 6004-2ZR, NSK 6004ZZ, NTN 6004ZZ, Timken 6004-ZZ. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 6004ZZ bearing?

The 6004ZZ bearing has a bore diameter of 20mm, outer diameter of 42mm, and width of 12mm. It has a dynamic load rating of 9.95 kN, static load rating of 5 kN, and weighs 65.6g. Maximum speed with grease lubrication is 24,000 rpm.

Can I replace a SKF 6004ZZ with a FAG equivalent?

Yes. SKF and FAG bearings with the same ISO designation are dimensionally interchangeable. The 6004ZZ (20×42×12mm) can be replaced with the equivalent FAG part number as long as the seal type (ZZ) and clearance class (CN) match. Always verify load ratings and speed limits for your specific application.

6004ZZ

ZZCNDeep Groove Ball BearingVerified matchExtra Light Series

Compact bearings for space-constrained applications. Lower load capacity but higher speed ratings.

20 × 42 × 12mm

Cr 9.95 kN / C₀r 5 kN

24,000 rpm (grease)

SKF6004-2Z20 × 42 × 12mm

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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	20 mm
Outer diameter (D)	42 mm
Width (B)	12 mm
Dynamic load rating (C)	9.95 kN
Static load rating (C₀)	5 kN
Weight	65.6 g
Max speed (grease)	24,000 rpm
Max speed (oil)	38,000 rpm

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Why This Match Is Correct

✓Exact dimensional match (bore, OD, width)

✓Load ratings within tolerance

✓Seal type verified via manufacturer tables

✓Speed rating compatible

Cross-References

Every way this part is identified across brands and catalogs.

Tier-1 Brand Equivalents

Brand	Part Number	Seal	Clearance	Status
SKF	6004-2Z	ZZ	CN	Verified
FAG	6004-2ZR	ZZ	CN	Probable
NSK	6004ZZ	ZZ	CN	Current
NTN	6004ZZ	ZZ	CN	Current
Timken	6004-ZZ	ZZ	CN	Verified

Legacy & Proprietary Numbers

SKF6004-2RSNSK6004C3EPEER6004-2RLDFLT6004.2RSNTN6004LLBKOYO60042RSSNR6004ESTEYR6004-2ZNGMN6004-2RSMGM6004.2ZNACHI6004NRNWG6004.2ZRHP6004-2RSBOHL60060040CITR620001VAG240100510SKF6004-2RS1/C2NSK6004DDPEER6004-2RLD-C3FLT6004.2RSNRNTN6004LLUKOYO6004NRSNR6004EESTEYR6004C3GMN6004RSMGM6004ZNACHI6004ZNWG6004ZRHP6004RSSKF6004-2RS1/C3

Show all 104 cross-references

NSK6004DDUPEER6004-C3FLT6004NNTN6004LUKOYO6004RSSNR6004NSTEYR6004ZGMN6004ZSKF6004-2RS1/C3GJNNSK6004DDUC3EPEER6004-RLDFLT6004NRNTN6004ZKOYO6004ZSNR6004ZSTEYR6004Z/C3SKF6004-2RS1/C3HT22NSK6004DDUCMPEER6004-ZDFLT6004RSNTN6004ZZC3SKF6004-2RS1/C3HT51NSK6004DUPEER6004-ZD-C3FLT6004ZSKF6004-2RS1/C3LHT23NSK6004DUCMPEER6004-ZZDSKF6004-2RS1/C3QE6HT51NSK6004VVPEER6004-ZZD-C3SKF6004-2RS1/LT20NSK6004ZSKF6004-2RS1NRNSK6004ZZC3ESKF6004-2RS1/QE6NSK6004ZZC3NS7SKF6004-2RSHSKF6004-2RSH/C3SKF6004-2RSH/C3GJNSKF6004-2RSH/C3LHT23SKF6004-2RSHNRSKF6004-2RSJEMSKF6004-2RSLSKF6004-2RSNRSKF6004-2RZSKF6004-2Z/C2SKF6004-2Z/C3SKF6004-2Z/C3LT20SKF6004-2Z/C3QE6SKF6004-2Z/C4SKF6004-2Z/GJNSKF6004-2Z/HT51SKF6004-2ZJEMSKF6004-2Z/LHT23SKF6004-2ZNSKF6004-2ZNRSKF6004/C2SKF6004/C3SKF6004/C3QE6SKF6004/C3S1SKF6004JEMSKF6004NSKF6004NRSKF6004/QE6SKF6004-RSSKF6004-RS1SKF6004-RS1/C2SKF6004-RS1/C3SKF6004-RSHSKF6004-RSJEMSKF6004-ZSKF6004-Z/C3SKF6004-ZJEM

Technical Details & Applications

Specification variations and common equipment types.

Internal Clearance

Normal Clearance (CN)

Standard radial internal clearance. Suitable for most applications under normal operating conditions.

TemperatureUp to ~70°C operating temperature

Seal Type

Metal Shielded (ZZ / 2Z)

Metal shields on both sides. Moderate protection from dust and debris. Pre-lubricated with grease.

Avoid forHarsh environments with heavy moisture, chemicals, or fine dust ingress.

Examples

Electric motors
Fans and blowers
Power tools
HVAC equipment

Where This Bearing Is Used

Electric motorsPumps and compressorsConveyor rollersAgricultural machineryFans and blowersGearboxesPower transmission equipmentWashing machinesPrinting pressesHVACAutomotive alternators and A/C compressors

Alternative Parts

Options if this exact part isn't what you need.

Same Geometry, Different Configuration

SKF Part Number	Seal Type	Clearance
6004	Open (No Seal)	CN
6004 C3	Open (No Seal)	C3
6004-2Z	ZZ	CN
6004-2Z C3	ZZ	C3
6004-2RS1	2RS	CN
6004-2RS1 C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.