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NSK HR30303DJ–HR30306DJ Tapered Roller Bearings for Auto & Rolling Mill

Technical data

Specifications

The table below lists the reference, category and dimensional data for this Koyo bearing. Share the full suffix with us and we match seal type, internal clearance and configuration to your gearbox or drive position.

Product details

About this Koyo bearing

Basic Info.

Model NO.
HR30303DJ

Outer Dimension
35mm-400mm

Material
Bearing Steel

Spherical
Non-Aligning Bearings

Load Direction
Radial Bearing

Separated
Separated

Product Name
Taper Roller Bearing

Bore Size
15-240 mm

Lubrication
Grease or Oil

Precision Rating
P0 P6 P5 P4 P2

Vibration
Z1V1 Z2V2 Z3V3

Service
OEM ODM

Transport Package
Carton Pallet

Specification
17*47*15.25 mm

Trademark
NSK

Origin
Japan

HS Code
8482200000

Production Capacity
1000000

FAQ

Questions about ordering Koyo bearings

Machinery Company supplies genuine Koyo / JTEKT bearings and mounting parts to gearbox, drive and maintenance buyers worldwide. Here are the questions buyers ask most.

What should I send if the Koyo suffix is missing?

Send a clear photo of the markings on the bearing, the equipment model and the bearing position. Note which items still need confirming, such as seal type or clearance. We complete the identification before issuing a quote.

Can I include adapter sleeves and housings in the same inquiry?

Yes. Bearings, adapter sleeves, housings and related mounting components can go in one inquiry. List each mounting part as a separate line with its reference, so the full assembly is quoted together and nothing is missing at shutdown.

How are substitute references handled?

Substitute references are listed separately on the quote, never swapped silently. Tell us whether you accept alternatives when you inquire. Any technical change requires your approval before the order is placed.

What documentation comes with the bearings?

Bearings ship in original Koyo packaging with certificates and full documentation. The written quote names the product documents for your order, alongside model, quantity, price and currency, stock status, estimated lead time and quote validity.

Boxed industrial roller bearings stacked on warehouse shelves

Request a quote for this Koyo bearing

Send the full reference, bearing position, quantity, destination country and required date. Machinery Company confirms the suffix and configuration, then replies with a written quote.

Send your inquiry

Include the product reference above and any mounting parts you need.