Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

NTN Tapered Roller Bearing Cone: 15578, 1 in Bore, 1.28 in OD, 0.687 in Cone Wd - Tapered Roller Bearing Cones
NTNTapered Roller Bearing Cones

NTN Tapered Roller Bearing Cone: 15578, 1 in Bore, 1.28 in OD, 0.687 in Cone Wd

The NTN Tapered Roller Bearing Cone 15578 (SKU 3G-OTH-118327, MPN 4T-15578) is an inch-system tapered roller bearing cone with a tapered bore, a 1 in bore, a 1.28 in OD, a 0.687 in cone width, and a 1.81 in inside…

SKU 3G-OTH-118327

Also listed as: 4T15578 · 4T 15578

Brand
NTN
Item
Tapered Roller Bearing Cone: 15578, 1 in Bore, 1.28 in OD, 0.687 in Cone Wd
Category
Tapered Roller Bearing Cones
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

NTN
Manufacturer Part Number
4T-15578
Bore
1 in
OD
1.28 in
Cone Wd
0.687 in
Bore Type
Tapered
Inside Dia
1.81 in
Cage Material
Chrome Steel
Ring Material
Carbon Steel
System of Measurement
Inch
Bearing Industry Number
15578
Compatible Cup Manufacturer Part Number
15520

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The NTN Tapered Roller Bearing Cone 15578 (SKU 3G-OTH-118327, MPN 4T-15578) is an inch-system tapered roller bearing cone with a tapered bore, a 1 in bore, a 1.28 in OD, a 0.687 in cone width, and a 1.81 in inside diameter. It features a chrome steel cage and carbon steel ring, and is compatible with cup manufacturer part number 15520.

Frequently Asked Questions

What is the NTN 15578 tapered roller bearing cone used for?

The NTN 15578 tapered roller bearing cone is used in industrial machinery and automotive applications that require support for combined radial and axial loads. It is commonly found in gearboxes, conveyor systems, and wheel hubs where precise alignment and high load capacity are critical.

What are the specifications of the NTN 15578 tapered roller bearing cone?

The NTN 15578 tapered roller bearing cone has a 1 in bore, 1.28 in OD, 0.687 in cone width, and 1.81 in inside diameter. It uses a chrome steel cage and carbon steel ring, is inch-system, and is compatible with cup part number 15520. The manufacturer part number is 4T-15578.

Where to buy the NTN 15578 tapered roller bearing cone worldwide?

You can source the NTN 15578 tapered roller bearing cone worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact them for availability and lead time.

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

To select the correct NTN tapered roller bearing cone, match the bore size, OD, and width to your shaft and housing dimensions. Verify the system of measurement (inch) and confirm compatibility with the cup part number 15520. Consider load ratings and operating conditions for optimal performance.

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 cones. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
NTN Tapered Roller Bearing Cone: 15580, 1 1/16 in Bore, 2.13 in OD, 0.687 in Cone Wd, 4T-15580
NTN
NTN Tapered Roller Bearing Cone: 15580, 1 1/16 in Bore, 2.13 in OD, 0.687 in Cone Wd, 4T-15580
NTN Tapered Roller Bearing Cone: 15590, 1 1/8 in Bore, 2.13 in OD, 0.687 in Cone Wd, 4T-15590
NTN
NTN Tapered Roller Bearing Cone: 15590, 1 1/8 in Bore, 2.13 in OD, 0.687 in Cone Wd, 4T-15590
NTN Tapered Roller Bearing Cone: 15119, 1 3/16 in Bore, 2.28 in OD, 0.812 in Cone Wd, 4T-15119
NTN
NTN Tapered Roller Bearing Cone: 15119, 1 3/16 in Bore, 2.28 in OD, 0.812 in Cone Wd, 4T-15119
NTN Tapered Roller Bearing Cone: 13685L, 1 1/2 in Bore, 2.56 in OD, 0.75 in Cone Wd, 4T-13685L
NTN
NTN Tapered Roller Bearing Cone: 13685L, 1 1/2 in Bore, 2.56 in OD, 0.75 in Cone Wd, 4T-13685L
NTN Tapered Roller Bearing Cone: 02875, 1 1/4 in Bore, 2.68 in OD, 0.875 in Cone Wd, 4T-02875
NTN
NTN Tapered Roller Bearing Cone: 02875, 1 1/4 in Bore, 2.68 in OD, 0.875 in Cone Wd, 4T-02875
NTN Tapered Roller Bearing Cone: 02877, 1 3/8 in Bore, 2.68 in OD, 0.875 in Cone Wd, 4T-02877
NTN
NTN Tapered Roller Bearing Cone: 02877, 1 3/8 in Bore, 2.68 in OD, 0.875 in Cone Wd, 4T-02877

More from NTN

View all NTN parts
NTN Tapered Roller Bearing Cone: 478, 2 35/64 in Bore, 4.21 in OD, 1.142 in Cone Wd, 478
NTN
NTN Tapered Roller Bearing Cone: 478, 2 35/64 in Bore, 4.21 in OD, 1.142 in Cone Wd, 478
NTN Tapered Roller Bearing Cone: 15120, 1 3/16 in Bore, 2.28 in OD, 0.812 in Cone Wd, 4T-15120
NTN
NTN Tapered Roller Bearing Cone: 15120, 1 3/16 in Bore, 2.28 in OD, 0.812 in Cone Wd, 4T-15120
NTN Tapered Roller Bearing Cone: A6067, 21/32 in Bore, 0.87 in OD, 0.439 in Cone Wd, 4T-A6067
NTN
NTN Tapered Roller Bearing Cone: A6067, 21/32 in Bore, 0.87 in OD, 0.439 in Cone Wd, 4T-A6067
NTN Tapered Roller Bearing Cone: 526, 1 5/8 in Bore, 3.5 in OD, 1.42 in Cone Wd, 2.874 in Inside Dia (MPN 4T-526)
NTN
NTN Tapered Roller Bearing Cone: 526, 1 5/8 in Bore, 3.5 in OD, 1.42 in Cone Wd, 2.874 in Inside Dia (MPN 4T-526)
NTN Tapered Roller Bearing Cone: 3775, 2 in Bore, 3.46 in OD, 1.193 in Cone Wd, 3.001 in Inside Dia
NTN
NTN Tapered Roller Bearing Cone: 3775, 2 in Bore, 3.46 in OD, 1.193 in Cone Wd, 3.001 in Inside Dia
NTN Tapered Roller Bearing Cone: HM89249, 1 7/16 in Bore, 2.95 in OD, 1.135 in Cone Wd, 4T-HM89249
NTN
NTN Tapered Roller Bearing Cone: HM89249, 1 7/16 in Bore, 2.95 in OD, 1.135 in Cone Wd, 4T-HM89249
NTN Tapered Roller Bearing Cone: 3479, 1 7/16 in Bore, 2.91 in OD, 1.172 in Cone Wd, 4T-3479
NTN
NTN Tapered Roller Bearing Cone: 3479, 1 7/16 in Bore, 2.91 in OD, 1.172 in Cone Wd, 4T-3479
NTN Tapered Roller Bearing Cone: HM807035, 1 5/8 in Bore, 3.5 in OD, 1.437 in Cone Wd, 4T-HM807035
NTN
NTN Tapered Roller Bearing Cone: HM807035, 1 5/8 in Bore, 3.5 in OD, 1.437 in Cone Wd, 4T-HM807035