NTN 30214U Tapered Roller Bearing – 70×125×26.25 mm Precision
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Contact Support14-Day Return Policy
Items can be returned within 14 days from the delivery date.
Conditions:
• Product must be unused
• Original packaging required
• Proof of purchase required
Product Description▼
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
| Specification | Detail |
|---|---|
| Brand | NTN |
| Model / Part Number | 30214U |
| Bearing Type | Tapered Roller Bearing (Single Row) |
| Inner Diameter (d) | 70 mm |
| Outer Diameter (D) | 125 mm |
| Bearing Width (T) | 26.25 mm |
| Inner Ring Width (B) | 24 mm |
| Outer Ring Width (C) | 21 mm |
| Dynamic Load Rating (C) | ~131 kN |
| Static Load Rating (C₀) | ~162 kN |
| Fatigue Limit Load (Cu) | ~19.8 kN |
| Limiting Speed (Oil) | ~3,900 rpm |
| Limiting Speed (Grease) | ~2,900 rpm |
| Operating Temp Range | −40 °C to +120 °C |
| Weight | ~1.26 kg |
| Condition | Brand New |
| Origin | NTN OEM quality |
| Design Standard | ISO 355 metric taper series |
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)
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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
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Gear reducers and gearboxes
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Conveyor shafts
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Heavy equipment drives
-
Construction and agricultural machinery
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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:
-
OEM Bearing Number: Check your original bearing’s OEM number from a parts manual.
-
Dimensions Match: Confirm bore (70 mm), outer diameter (125 mm), width (26.25 mm).
-
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.
Shipping information
Standard Delivery
• Orders are usually delivered within 2+ days depending on location.
Pre-Order Items
• Some products may be available for pre-order.
• Estimated delivery time is 2 weeks to 3 months depending on supplier availability.
Pickup
• Pickup may be available at selected Win Store locations.
For full delivery terms and service coverage, please visit our Help Center.
Returns & warranty
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.
Warranty
• Warranty coverage may vary depending on the manufacturer or supplier.
• If a product includes manufacturer warranty, claims must follow supplier terms.
For detailed return conditions and warranty procedures, please visit our Help Center.