What is the equivalent of a 30205 bearing?

The 30205 is a 25×52×16.25mm tapered roller bearing with verified equivalents across multiple brands: Timken 30205, NTN 4T-30205, SKF 30205 J2/Q, FAG 30205-XL. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 30205 bearing?

The 30205 bearing has a bore diameter of 25mm, outer diameter of 52mm, and width of 16.25mm. It has a dynamic load rating of 17.8 kN, static load rating of 10.1 kN, and weighs 100g. Maximum speed with grease lubrication is 9,000 rpm.

Can I replace a NSK 30205 with a Timken equivalent?

Yes. NSK and Timken bearings with the same ISO designation are dimensionally interchangeable. The 30205 (25×52×16.25mm) can be replaced with the equivalent Timken part number as long as the seal type (open) and clearance class (CN) match. Always verify load ratings and speed limits for your specific application.

30205

OpenCNTapered Roller BearingVerified matchTapered Roller — Light, Narrow

Light series metric tapered roller bearings with narrow width. The most common tapered roller series for general-purpose applications. Handles combined radial and axial loads with high rigidity.

25 × 52 × 16.25mm

Open (no seal)

Cr 17.8 kN / C₀r 10.1 kN

9,000 rpm (grease)

NSKHR30205J25 × 52 × 16.25mm

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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	25 mm
Outer diameter (D)	52 mm
Width (B)	16.25 mm
Dynamic load rating (C)	17.8 kN
Static load rating (C₀)	10.1 kN
Weight	100 g
Max speed (grease)	9,000 rpm
Max speed (oil)	12,000 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
NSK	HR30205J	Open	CN	Verified
Timken	30205	Open	CN	Current
NTN	4T-30205	Open	CN	Verified
SKF	30205 J2/Q	Open	CN	Verified
FAG	30205-XL	Open	CN	Verified

Legacy & Proprietary Numbers

FAG30205AGPZ7205RIV01/02/7205SKF30205J2WAF70-205-0

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

Open (No Seal)

No seals or shields. Allows external lubrication and cooling. Lowest friction, highest speed capability.

Avoid forDirty, dusty, or wet environments. Applications without planned lubrication maintenance.

Examples

Machine tool spindles
Gearboxes with oil bath lubrication
High-speed precision 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
30205 J2/Q	Open (No Seal)	CN
30205 J2/Q C3	Open (No Seal)	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.