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NTN Tapered Roller Bearing Assembly: 31309, 45 mm Bore, 100 mm OD, 25 mm Cone Wd - Tapered Roller Bearing Assemblies
NTNTapered Roller Bearing Assemblies

NTN Tapered Roller Bearing Assembly: 31309, 45 mm Bore, 100 mm OD, 25 mm Cone Wd

The NTN Tapered Roller Bearing Assembly, model 31309 (SKU 3G-OTH-103441), is a metric tapered roller bearing assembly with a 45 mm bore, 100 mm OD, 25 mm cone width, and 18 mm cup width. It features a pressed steel…

SKU 3G-OTH-103441

Also listed as: 4T30309D · 4T 30309D

Brand
NTN
Item
Tapered Roller Bearing Assembly: 31309, 45 mm Bore, 100 mm OD, 25 mm Cone Wd
Category
Tapered Roller Bearing Assemblies
Available to Order
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Worldwide Shipping
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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
4T-30309D
Bore
45 mm
OD
100 mm
Cup Wd
18 mm
Cone Wd
25 mm
Cage Material
Pressed Steel
Ring Material
Carbon Steel
System of Measurement
Metric
Bearing Industry Number
31309

Technical Documents

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

Product Description

The NTN Tapered Roller Bearing Assembly, model 31309 (SKU 3G-OTH-103441), is a metric tapered roller bearing assembly with a 45 mm bore, 100 mm OD, 25 mm cone width, and 18 mm cup width. It features a pressed steel cage and carbon steel rings, with manufacturer part number 4T-30309D and bearing industry number 31309.

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 31309 tapered roller bearing used for?

The NTN 31309 tapered roller bearing assembly handles combined radial and axial loads in industrial machinery, gearboxes, and automotive drivetrains. Its 45 mm bore and 100 mm OD suit moderate-speed applications requiring precise shaft alignment and high load capacity.

What are the specifications of the NTN 31309 bearing?

The NTN 31309 is a metric tapered roller bearing assembly with a 45 mm bore, 100 mm OD, 25 mm cone width, and 18 mm cup width. It has carbon steel rings, a pressed steel cage, and manufacturer part number 4T-30309D. The bearing industry number is 31309.

Where to buy the NTN 31309 bearing worldwide?

3G Electric supplies the NTN 31309 tapered roller bearing assembly worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this metric bearing.

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

To select the correct NTN tapered roller bearing, match the bore diameter (45 mm for the 31309), OD (100 mm), and width (25 mm cone, 18 mm cup) to your shaft and housing dimensions. Verify load ratings and speed limits from NTN's catalog. The pressed steel cage suits moderate speeds.

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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Cross-referenced by specification & description
NTN Tapered Roller Bearing Assembly: 31307, 35 mm Bore, 80 mm OD, 21 mm Cone Wd, 15 mm Cup Wd (MPN 4T-30307D)
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