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NTN Tapered Roller Bearing Assembly: 39578/39520, 2 1/8 in Bore, 4 7/16 in OD - Tapered Roller Bearing Assemblies
NTNTapered Roller Bearing Assemblies

NTN Tapered Roller Bearing Assembly: 39578/39520, 2 1/8 in Bore, 4 7/16 in OD

The NTN Tapered Roller Bearing Assembly, model 39578/39520, is an inch-system bearing with a 2 1/8 in bore, 4 7/16 in OD, and 1.187 in cone width. It features a pressed steel cage and carbon steel rings, making it…

SKU 3G-OTH-109446

Also listed as: 3957839520 · 39578 39520 · 39578-39520

Brand
NTN
Item
Tapered Roller Bearing Assembly: 39578/39520, 2 1/8 in Bore, 4 7/16 in OD
Category
Tapered Roller Bearing Assemblies
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

NTN
Manufacturer Part Number
39578/39520
Bore
2 1/8 in
OD
4 7/16 in
Cone Wd
1.187 in
Cage Material
Pressed Steel
Ring Material
Carbon Steel
System of Measurement
Inch
Bearing Industry Number
39578/39520

Technical Documents

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NTN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The NTN Tapered Roller Bearing Assembly, model 39578/39520, is an inch-system bearing with a 2 1/8 in bore, 4 7/16 in OD, and 1.187 in cone width. It features a pressed steel cage and carbon steel rings, making it suitable for industrial applications requiring tapered roller bearing assemblies.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the NTN 39578/39520 tapered roller bearing used for?

The NTN 39578/39520 tapered roller bearing assembly handles combined radial and axial loads in industrial machinery, gearboxes, and conveyor systems. Its inch dimensions and pressed steel cage suit moderate-speed applications requiring reliable load distribution.

What are the specifications of the NTN 39578/39520 bearing?

This NTN tapered roller bearing assembly has a 2 1/8 in bore, 4 7/16 in OD, and 1.187 in cone width. It uses carbon steel rings and a pressed steel cage, with inch-system measurement. The industry number is 39578/39520.

Where to buy the NTN 39578/39520 bearing worldwide?

3G Electric supplies the NTN 39578/39520 tapered roller bearing assembly to global customers. We handle logistics, customs clearance, and delivery worldwide, ensuring you receive genuine NTN components for your industrial applications.

How to select the correct NTN tapered roller bearing for an application?

Select an NTN tapered roller bearing by matching bore, OD, and cone width to your shaft and housing dimensions. Consider load type, speed, and operating temperature. For the 39578/39520, verify inch-system fit and carbon steel ring compatibility with your environment.

Used in

Common applications for NTN
Automotive driveline — NTN tapered roller bearing assemblies (e.g., 4T-30303) for differential and wheel hub applications
Conveyor systems — NTN 4-bolt flange bearings (e.g., UCF211-200D1) for idler rollers and take-up units
Machine tool spindles — NTN duplex angular contact bearings (e.g., ML7006CVDUJ74S) for high-speed precision rotation
Industrial fans — NTN high-temperature radial ball bearings (e.g., 6004FT150) for oven and dryer exhaust systems
Pump drives — NTN radial ball bearings (e.g., 6008LLBC3/L627) for electric motor and pump shaft support
Agricultural equipment — NTN tapered roller bearing cones (e.g., LM29748L) for gearbox and PTO shaft assemblies

NTN Products

3G Electric supplies NTN tapered roller bearing assemblies. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
NTN Tapered Roller Bearing Assembly: SET408, 2 5/8 in Bore, 4 7/16 in OD, 1.187 in Cone Wd (MPN 39590/39520)
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NTN Tapered Roller Bearing Assembly: SET408, 2 5/8 in Bore, 4 7/16 in OD, 1.187 in Cone Wd (MPN 39590/39520)
NTN Tapered Roller Bearing Assembly: 3980/3920, 2 3/8 in Bore, 4 7/16 in OD, 1.183 in Cone Wd
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NTN Tapered Roller Bearing Assembly: 3980/3920, 2 3/8 in Bore, 4 7/16 in OD, 1.183 in Cone Wd
NTN Tapered Roller Bearing Assembly: 3977/3920, 2 23/64 in Bore, 4 7/16 in OD, 1.183 in Cone Wd
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NTN Tapered Roller Bearing Assembly: 3977/3920, 2 23/64 in Bore, 4 7/16 in OD, 1.183 in Cone Wd
NTN Tapered Roller Bearing Assembly: 3982/3920, 2 1/2 in Bore, 4 7/16 in OD, 1.183 in Cone Wd
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NTN Tapered Roller Bearing Assembly: 3982/3920, 2 1/2 in Bore, 4 7/16 in OD, 1.183 in Cone Wd
Tapered roller bearing assembly with 2 1/4 in bore, 4 21/64 in OD, and 0.866 in cone width. Constructed with carbon steel rings and a pressed steel cage. Inch-system design for applications requiring support of combined radial and axial loads, such as in gearboxes, conveyors, and drivetrains
NTN
Tapered roller bearing assembly with 2 1/4 in bore, 4 21/64 in OD, and 0.866 in cone width. Constructed with carbon steel rings and a pressed steel cage. Inch-system design for applications requiring support of combined radial and axial loads, such as in gearboxes, conveyors, and drivetrains
Inch-system tapered roller bearing assembly with 6 9/16 in bore, 8 7/8 in OD, and 1.562 in cone width. Carbon steel rings and pressed steel cage. Used in gearboxes, conveyors, and machine tool spindles for radial and axial loads
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Inch-system tapered roller bearing assembly with 6 9/16 in bore, 8 7/8 in OD, and 1.562 in cone width. Carbon steel rings and pressed steel cage. Used in gearboxes, conveyors, and machine tool spindles for radial and axial loads

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