What is the equivalent of a 4T-32008 bearing?

The 4T-32008 is a 40×68×19mm ball bearing with verified equivalents across multiple brands: NTN 4T-32008, FAG 32008-XL, NSK HR32008J, SKF 32008 J2/Q. All equivalents share the same bore, outer diameter, width, and load ratings.

What are the dimensions of a 4T-32008 bearing?

The 4T-32008 bearing has a bore diameter of 40mm, outer diameter of 68mm, and width of 19mm. It has a dynamic load rating of 26.2 kN, static load rating of 16.5 kN, and weighs 178g. Maximum speed with grease lubrication is 6,600 rpm.

Can I replace a Timken 4T-32008 with a NTN equivalent?

Yes. Timken and NTN bearings with the same ISO designation are dimensionally interchangeable. The 4T-32008 (40×68×19mm) can be replaced with the equivalent NTN 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.

4T-32008

OpenCNTapered Roller BearingVerified match

40 × 68 × 19mm

Open (no seal)

Cr 26.2 kN / C₀r 16.5 kN

6,600 rpm (grease)

Timken3200840 × 68 × 19mm

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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)	40 mm
Outer diameter (D)	68 mm
Width (B)	19 mm
Dynamic load rating (C)	26.2 kN
Static load rating (C₀)	16.5 kN
Weight	178 g
Max speed (grease)	6,600 rpm
Max speed (oil)	8,400 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
Timken	32008	Open	CN	Verified
NTN	4T-32008	Open	CN	Current
FAG	32008-XL	Open	CN	Verified
NSK	HR32008J	Open	CN	Verified
SKF	32008 J2/Q	Open	CN	Verified

Legacy & Proprietary Numbers

FLT32008XKOYO32008JRNTN32008XSKF32008X/QSNR32008VC12STEYR32008CXTIMKEN32008XWAF70-201-0

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
32008 J2/Q	Open (No Seal)	CN
32008 J2/Q C3	Open (No Seal)	C3

Related Bearings

Adjacent sizes and cross-series bearings from our catalog.