What is the equivalent of a 6306-2ZR bearing?

The 6306-2ZR is a 30×72×19mm deep groove ball bearing with verified equivalents across multiple brands: FAG 6306-2ZR, NSK 6306ZZ, NTN 6306ZZ, Timken 6306-ZZ. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 6306-2ZR bearing?

The 6306-2ZR bearing has a bore diameter of 30mm, outer diameter of 72mm, and width of 19mm. It has a dynamic load rating of 29.6 kN, static load rating of 16 kN, and weighs 340g. Maximum speed with grease lubrication is 13,000 rpm.

Can I replace a SKF 6306-2ZR with a FAG equivalent?

Yes. SKF and FAG bearings with the same ISO designation are dimensionally interchangeable. The 6306-2ZR (30×72×19mm) 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.

6306-2ZR

ZZCNDeep Groove Ball BearingVerified matchMedium Series

Higher load capacity than the 6200 series for the same bore size. Used where heavier radial loads are expected.

30 × 72 × 19mm

Cr 29.6 kN / C₀r 16 kN

13,000 rpm (grease)

SKF6306-2Z30 × 72 × 19mm

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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	30 mm
Outer diameter (D)	72 mm
Width (B)	19 mm
Dynamic load rating (C)	29.6 kN
Static load rating (C₀)	16 kN
Weight	340 g
Max speed (grease)	13,000 rpm
Max speed (oil)	20,000 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	6306-2Z	ZZ	CN	Verified
FAG	6306-2ZR	ZZ	CN	Current
NSK	6306ZZ	ZZ	CN	Verified
NTN	6306ZZ	ZZ	CN	Verified
Timken	6306-ZZ	ZZ	CN	Probable

Legacy & Proprietary Numbers

SKF6306-2RSNSK6306C3ESTEYR6306-2GKOYO63062RSPEER6306-2RLDFLT6306.2RSRHP6306-2RSSNR6306ENTN6306LLNWG6306.2RSFEDERAL1306MGM6306.2RSFBC6306PFafnir306KMRC306-SOPEL720004ZWZ6306-2RSFederal1306FFHOOVER7306New Departure88206ROVER130640ZKL6306NARA610063060CARM7018419CITR6306ACDENN62154SOME73200890UBCO6306X/C3VOLVO7018419SKF6306-2RS1/C2

Show all 153 cross-references

NSK6306CMSTEYR6306-2RSKOYO6306DPEER6306-2RLD-C3FLT6306A.2RSRHP6306.2RSSNR6306EENTN6306LUNWG6306.2ZFEDERAL1306CGMGM6306.2ZFBC6306PPFafnir306KDMRC306-SFFOPEL720016ZWZ6306-RSFederal1306SFHOOVER7306GNew Departure88506ROVER130640ZZKL6306ZSKF6306-2RS1/C3NSK6306DDSTEYR6306-2Z/C3KOYO6306DDPEER6306-C3FLT6306NRHP6306.2ZSNR6306J30NTN6306NRNWG6306NFEDERAL1306FMGM6306NFBC6306PSRFafnir306KDDMRC306-SZZOPEL720025ZWZ6306-ZSKF6306-2RS1/C3GJNNSK6306DDUSTEYR6306GKOYO6306NPEER6306-NRFLT6306NRRHP6306NSNR6306NNTN6306NRC3NWG6306RSFEDERAL1306FFMGM6306RSFBC6306SRSKF6306-2RS1/C3HT51NSK6306DDUCMSTEYR6306NKOYO6306NRPEER6306-NR-C3FLT6306RSRHP6306NRSNR6306NJ30NTN6306ZNWG6306ZFEDERAL1306GFMGM6306ZSKF6306-2RS1/C3MT37NSK6306DUSTEYR6306NRKOYO6306RSPEER6306-RLDFLT6306ZRHP6306RSSNR6306NRNTN6306ZNRNWG6306ZNSKF6306-2RS1/C4NSK6306NSTEYR6306NR/C3KOYO6306ZPEER6306-ZZDFLT6306ZNRRHP6306ZSNR6306ZSKF6306-2RSJEMNSK6306NRSTEYR6306RS1KOYO6306ZNRPEER6306-ZZD-C3SKF6306-2Z/C3NSK6306NRC3STEYR6306RS1/C3SKF6306-2Z/C3GJNNSK6306ZSTEYR6306ZSKF6306-2Z/C3HTNSK6306ZNSTEYR6306Z/C3SKF6306-2Z/C3HT51NSK6306ZNRSTEYR6306ZNRSKF6306-2Z/C3WTSKF6306-2Z/C4GJNSKF6306-2ZJEMSKF6306-2Z/VA228SKF6306/C3SKF6306/C4SKF6306/C5SKF6306JEMSKF6306NSKF6306N/C3SKF6306NRSKF6306NR/C3SKF6306NRJEMSKF6306-RSSKF6306-RS1SKF6306-RS1/C3SKF6306-RSJEMSKF6306TB/P63SKF6306TN9/C3SKF6306-ZSKF6306-Z/C3SKF6306-ZJEMSKF6306-ZN/344153SKF6306-ZNRSKF6306-ZNRJEM

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
6306	Open (No Seal)	CN
6306 C3	Open (No Seal)	C3
6306-2Z	ZZ	CN
6306-2Z C3	ZZ	C3
6306-2RS1	2RS	CN
6306-2RS1 C3	2RS	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.