NTN 4T30209U Deep Groove Ball Bearing – Precision Load Support
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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 4T-30209U is a precision single-row tapered roller bearing engineered to support combined radial and axial loads in automotive and mechanical applications. With metric ISO dimensions of 45 mm bore × 85 mm outer diameter × 20.75 mm width, it delivers smooth, stable rotation and long service life in differentials, axle assemblies, hubs, and driveline systems.
Tapered roller bearings are designed so the tapered rollers and raceways intersect on the bearing centerline, allowing the bearing to handle axial thrust and radial loading simultaneously.
Technical Specifications
| Specification | Detail |
|---|---|
| Brand | NTN |
| Part Number | 4T-30209U / 30209U |
| Bearing Type | Single-Row Tapered Roller Bearing |
| Bore (d) | 45 mm |
| Outer Diameter (D) | 85 mm |
| Width (T) | 20.75 mm |
| Configuration | Cone + Cup (Separable) |
| Load Support | Radial + Axial (single direction) |
| Condition | Brand New |
| Typical Uses | Differential side bearings, axle support, hub & driveline assemblies |
| Origin | NTN OEM quality |
Confirmed Vehicle Fitment
This bearing size is commonly used in Nissan / Datsun / Infiniti rear differential and axle assemblies where OEM bearing part numbers like 38440-N3100 / 38440-N3110 / 38440-N3111 or similar appear for tapered bearings of this dimension (45×85×20.75 mm).
Compatible Vehicle Models & Years
| Make / Brand | Model | Year Range |
|---|---|---|
| Nissan / Datsun | 200SX | 1984–1988 |
| Nissan | 240SX | 1989–1998 |
| Nissan / Datsun | 280ZX | 1975–1983 |
| Nissan | 280ZX | 1979–1983 |
| Nissan | 300ZX | 1984–1996 |
| Nissan | 720 Pickup | 1983–1986 |
| Nissan | D21 Hardbody Pickup | 1986–1994 |
| Nissan | Frontier | 1998–2004 |
| Nissan | Pathfinder / Armada | 1987–2004 |
| Nissan | Van (E-Series) | 1987–1988 |
| Infiniti | J30 | 1993–1997 |
| Infiniti | M30 | 1990–1992 |
| Infiniti | Q45 | 1995–1997 |
| Infiniti | QX4 | 1997–2003 |
| Nissan | Xterra | 2000–2004 |
(References are based on common axle/differential bearing part number cross references for bearings in this dimensional family — matching sizes and applications in these models.)
⚠ Always verify the OEM part number in your specific vehicle’s service manual or parts catalog before ordering to confirm fitment.
Related Brand Cross-Reference Part Numbers
This bearing size is a standard metric tapered roller bearing, and compatible equivalents from other major brands may be used when dimensions and specifications match:
✔ SKF: 30209 metric tapered roller bearing
✔ Timken: 30209M metric class tapered bearing
✔ NSK: 30209J2 (metric interchangeable series)
✔ KOYO: 30209JR equivalent dimensions
✔ Perfect Circle: 30209C (metric interchange code)
⚠ Before substituting, check exact sealing type, contact angle and tolerance to ensure proper replacement performance.
Features & Benefits
✔ OEM-Quality Precision: Manufactured by NTN to deliver dependable performance and long service life in demanding conditions.
✔ High Load Support: Designed for combined radial and axial loads common in differential and axle applications.
✔ Separable Design: Cone and cup parts allow precise preload and installation.
✔ Versatile Use: Suitable for automotive differentials, axle hubs, and mechanical driveline systems.
✔ Broad Interchangeability: Matches standard 30209 metric series bearing dimensions accepted by other quality brands.
Where It’s Used
Automotive Applications
-
Rear differential side bearings
-
Axle support and carrier bearings
-
Hub and driveline bearing points
Industrial & Mechanical
-
Heavy machinery rotating shafts
-
Conveyors and industrial drives
-
Agricultural and off-road equipment
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.