NTN 4T-18685/18620 Tapered Roller Bearing 44.450x79.375x17.462 mm
2 pcs.
€15.27
(net)
Price for: 1pcs.
The product is available through the simmering.pl B2B platform.
Warehouse:
Poland
We offer:
- B2B supply throughout Europe
- Technical assistance in bearing selection
- OEM replacement support
- Professional customer service for industrial applications
The NTN 4T-18685/18620 is a premium single-row tapered roller bearing with dimensions 44.450 × 79.375 × 17.462 mm. Designed for combined radial and axial loads, it offers high load capacity, excellent rotational accuracy and long service life. Manufactured with a pressed steel cage, this inch-series bearing is widely used in automotive wheel hubs, transmissions, agricultural machinery, construction equipment and industrial power transmission systems. It is supplied as a complete matched assembly consisting of the cone and cup.
Product Overview
The NTN 4T-18685/18620 is a premium-quality single-row tapered roller bearing engineered to support combined radial and axial loads. Precision-ground tapered rollers provide excellent load distribution, high rigidity and extended service life, making this bearing suitable for demanding industrial and automotive applications.
With dimensions of 44.450 × 79.375 × 17.462 mm, this inch-series tapered roller bearing is commonly installed in wheel hubs, axles, transmissions, gearboxes, agricultural machinery, construction equipment and industrial power transmission systems. It is supplied as a complete matched assembly consisting of the cone (4T-18685) and cup (4T-18620).
Key Features
- Original NTN tapered roller bearing
- Bearing designation: 4T-18685/18620
- Single-row tapered roller design
- Inch series bearing
- Designed for combined radial and axial loads
- High load carrying capacity
- Excellent running accuracy
- Pressed steel cage
- Low rolling resistance
- Long operating life
- Suitable for demanding industrial applications
Technical Specifications
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bearing Type | Tapered Roller Bearing |
| Series | Inch Series |
| Bearing Number | 4T-18685/18620 |
| Inside Diameter (d) | 44.450 mm |
| Outside Diameter (D) | 79.375 mm |
| Total Width (T) | 17.462 mm |
| Inner Ring Width (B) | 17.462 mm |
| Outer Ring Width (C) | 13.495 mm |
| Cage | Pressed Steel |
| Number of Rows | Single Row |
| Weight | Approx. 0.345 kg |
Typical Applications
The NTN 4T-18685/18620 bearing is widely used in:
- Automotive wheel hubs
- Axles
- Manual and automatic transmissions
- Differential gearboxes
- Agricultural machinery
- Construction equipment
- Industrial gearboxes
- Conveyor systems
- Mining equipment
- Heavy-duty industrial machinery
Advantages of Tapered Roller Bearings
Single-row tapered roller bearings are specifically designed to support simultaneous radial and axial loads. Compared with conventional ball bearings, they provide:
- Higher load capacity
- Greater rigidity
- Longer service life
- Improved resistance to shock loads
- Excellent shaft guidance
- Reliable operation under heavy-duty conditions
These characteristics make tapered roller bearings the preferred solution for automotive drivetrains, industrial machinery and heavy equipment.
Why Choose NTN?
NTN Corporation is one of the world's leading manufacturers of rolling bearings and precision engineering components. NTN products are recognized worldwide for:
- Premium bearing steel
- Precision manufacturing
- Tight dimensional tolerances
- Excellent durability
- Reliable long-term performance
- OEM-quality standards
NTN bearings are trusted by automotive manufacturers and industrial equipment producers around the world.
Frequently Asked Questions (FAQ)
What type of bearing is 4T-18685/18620?
It is a single-row tapered roller bearing designed to carry combined radial and axial loads.
What are the bearing dimensions?
- Bore diameter: 44.450 mm
- Outside diameter: 79.375 mm
- Total width: 17.462 mm
Is this an inch-series bearing?
Yes. The NTN 4T-18685/18620 belongs to the inch tapered roller bearing series.
Is the bearing supplied as a complete assembly?
Yes. It includes the matched cone (4T-18685) and cup (4T-18620) supplied together as a complete bearing assembly.
Where is this bearing commonly used?
It is commonly used in wheel hubs, transmissions, axles, agricultural machinery, construction equipment and industrial power transmission systems.
18685/18620 NTN
2 pcs.
Data sheet
- Diameter in. (mm)
- 44.45
- Diameter out. (mm)
- 79.375
- Height (mm)
- 17.462
- Mark
- NTN
The product is available through the simmering.pl B2B platform.
Warehouse:
Poland
We offer:
- B2B supply throughout Europe
- Technical assistance in bearing selection
- OEM replacement support
- Professional customer service for industrial applications
The NTN 4T-18685/18620 is a premium single-row tapered roller bearing with dimensions 44.450 × 79.375 × 17.462 mm. Designed for combined radial and axial loads, it offers high load capacity, excellent rotational accuracy and long service life. Manufactured with a pressed steel cage, this inch-series bearing is widely used in automotive wheel hubs, transmissions, agricultural machinery, construction equipment and industrial power transmission systems. It is supplied as a complete matched assembly consisting of the cone and cup.