The NTN 30214U Tapered Roller Bearing is a precision metric tapered roller bearing engineered to support high radial loads and axial thrust loads (in one direction). Its robust design and tapered roller geometry provide excellent load distribution, durability, and long service life in demanding automotive, industrial, and mechanical applications.

Technical Specifications

This bearing comprises a cone (inner ring + rollers + cage) and a cup (outer ring) that are fitted together to form a complete bearing unit.

Product Overview

NTN’s tapered roller bearings are designed with conical rollers and raceways that meet at a common apex, enabling them to handle combined radial and axial loads with high precision. The open single-row design allows flexible mounting arrangements such as back-to-back, face-to-face, or tandem for applications requiring axial load support in both directions.

This model uses a pressed steel cage for roller guidance and structural stability, making it suited for sustained load applications.

Features & Benefits

✔ High Combined Load Support: Handles heavy radial loads and single-direction axial thrusts with efficiency.
✔ Open Separable Design: Facilitates easy mounting and precise adjustment for axial clearance.
✔ Durable Construction: Hardened steel rollers and rings built for heavy use and long life.
✔ Versatile Rotational Speed: Works well with grease or oil lubrication depending on operating conditions.
✔ Wide Temperature Range: Operates reliably from −40 °C to +120 °C.

Applications & Uses

The NTN 30214U is widely used in systems requiring a 70×125×26.25 mm tapered roller bearing. Common applications include:

Automotive & Vehicle Systems (Dimension-Based)

This bearing size is frequently used in:

• Wheel hub assemblies (paired in pairs)

• Transmission shafts

• Differential carrier supports

• Axle hubs and hub bearings

⚠ Vehicle manufacturers list OEM bearing codes, not generic sizes like 30214U. To confirm exact fitment for a specific make/model/year, match the OEM part number or check the bearing dimensions in the vehicle’s parts catalog before ordering.

Industrial & Mechanical Equipment

• Gear reducers and gearboxes

• Conveyor shafts

• Heavy equipment drives

• Construction and agricultural machinery

• Mining, forestry, and steel processing equipment

How to Confirm Vehicle Compatibility

Because the 30214U bearing is specified by dimension and load rating, fitment to a specific vehicle or machine requires verification, usually via:

1. OEM Bearing Number: Check your original bearing’s OEM number from a parts manual.

2. Dimensions Match: Confirm bore (70 mm), outer diameter (125 mm), width (26.25 mm).

3. Assembly Purpose: Check whether the original assembly uses a tapered bearing of this size in hubs, transmissions, or axles.

When these parameters match, the 30214U bearing is an appropriate replacement.

Related & Equivalent Bearings

You may also find dimension-matched or similar part references in other bearing series:

• SKF 30214 (metric tapered roller bearing)

• FAG 30214

• Timken 30214

• NTN / Bower branded equivalents of 30214U

⚠ Always verify dimensions, load capacities, and cage type before substituting brands.

Return Policy
• Items can be returned within 14 days from the delivery date.
• Products must be unused and in original packaging.
• Proof of purchase (order confirmation or invoice) is required.

Non-Returnable Items
• Used or installed products
• Items damaged due to improper handling
• Products modified after purchase

Warranty
• Warranty coverage may vary depending on the manufacturer or supplier.
• If a product includes manufacturer warranty, claims must follow supplier terms.

See full delivery and return policy in our Help Center