NTN Tapered Roller Bearing Cone: 5578, 2 1/8 in Bore, 4.57 in OD, 1.723 in Cone Wd
The NTN Tapered Roller Bearing Cone 5578 (SKU 806CE2) is an inch-system tapered roller bearing cone with a 2 1/8 in bore, 4.57 in OD, and 1.723 in cone width. It features a chrome steel cage and carbon steel ring…
SKU 3G-OTH-102732
Need installation or engineering help?
Ask a question
Product Description
The NTN Tapered Roller Bearing Cone 5578 (SKU 806CE2) is an inch-system tapered roller bearing cone with a 2 1/8 in bore, 4.57 in OD, and 1.723 in cone width. It features a chrome steel cage and carbon steel ring, and is compatible with cup manufacturer part number 5535.
Frequently Asked Questions
What is the NTN 5578 tapered roller bearing cone used for?
The NTN 5578 tapered roller bearing cone is used in industrial machinery and automotive drivetrains to support combined radial and axial loads. Its inch-system dimensions and tapered bore make it suitable for applications requiring precise shaft alignment and high load capacity, such as gearboxes, conveyors, and heavy equipment.
What are the specifications of the NTN 5578 bearing cone?
The NTN 5578 tapered roller bearing cone has a 2 1/8 in bore, 4.57 in OD, and 1.723 in cone width. It features a carbon steel ring, chrome steel cage, and tapered bore type. This inch-system component is compatible with cup manufacturer part number 5535 and carries bearing industry number 5578.
Where to buy the NTN 5578 bearing cone worldwide?
You can source the NTN 5578 tapered roller bearing cone from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine NTN components for industrial applications.
How to select the correct NTN tapered roller bearing cone?
To select the correct NTN tapered roller bearing cone, match the bore size (2 1/8 in), OD (4.57 in), and cone width (1.723 in) to your shaft and housing dimensions. Verify compatibility with cup part number 5535 and ensure the inch-system measurement fits your application. Consult NTN specifications for load ratings and operating conditions.
Used in
Common applications for NTNNTN Products
3G Electric supplies NTN tapered roller bearing cones. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.













