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NTN Tapered Roller Bearing Assembly: 30312D, 60 mm Bore, 130 mm OD, 31 mm Cone Wd - Tapered Roller Bearing Assemblies
NTNTapered Roller Bearing Assemblies

NTN Tapered Roller Bearing Assembly: 30312D, 60 mm Bore, 130 mm OD, 31 mm Cone Wd

The NTN Tapered Roller Bearing Assembly, model 30312D (MPN 4T-30312D), is a metric tapered roller bearing with a 60 mm bore, 130 mm OD, 31 mm cone width, and 22 mm cup width. It features a carbon steel ring and a…

SKU 3G-OTH-109359

Also listed as: 4T30312D · 4T 30312D

Brand
NTN
Item
Tapered Roller Bearing Assembly: 30312D, 60 mm Bore, 130 mm OD, 31 mm Cone Wd
Category
Tapered Roller Bearing Assemblies
Available to Order
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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-30312D
Bore
60 mm
OD
130 mm
Cup Wd
22 mm
Cone Wd
31 mm
Cage Material
Pressed Steel
Ring Material
Carbon Steel
System of Measurement
Metric
Bearing Industry Number
30312D

Technical Documents

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

Product Description

The NTN Tapered Roller Bearing Assembly, model 30312D (MPN 4T-30312D), is a metric tapered roller bearing with a 60 mm bore, 130 mm OD, 31 mm cone width, and 22 mm cup width. It features a carbon steel ring and a pressed steel cage, designed for industrial applications requiring radial and axial load support.

Frequently Asked Questions

What is the NTN 30312D tapered roller bearing used for?

The NTN 30312D tapered roller bearing assembly supports combined radial and axial loads in industrial machinery such as gearboxes, conveyors, and pumps. Its 60 mm bore and 130 mm OD suit medium-duty rotating shafts where precise alignment and high load capacity are required.

What are the specifications of the NTN 30312D bearing?

The NTN 30312D (MPN 4T-30312D) is a metric tapered roller bearing with a 60 mm bore, 130 mm OD, 31 mm cone width, and 22 mm cup width. It has carbon steel rings and a pressed steel cage, designed for industrial radial and axial load support.

Where to buy the NTN 30312D bearing worldwide?

3G Electric supplies the NTN 30312D tapered roller bearing worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this metric bearing assembly.

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

Select an NTN tapered roller bearing by matching bore size, OD, and width to your shaft and housing dimensions. For the 30312D, verify a 60 mm bore and 130 mm OD. Consider load type—radial, axial, or combined—and ensure the pressed steel cage suits your operating temperature and speed.

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: 30313D, 65 mm Bore, 140 mm OD, 33 mm Cone Wd, 23 mm Cup Wd (MPN 4T-30313D)
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NTN Tapered Roller Bearing Assembly: 30313D, 65 mm Bore, 140 mm OD, 33 mm Cone Wd, 23 mm Cup Wd (MPN 4T-30313D)
NTN Tapered Roller Bearing Assembly: 30307, 35 mm Bore, 80 mm OD, 21 mm Cone Wd, 18 mm Cup Wd (MPN 4T-30307)
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NTN Tapered Roller Bearing Assembly: 30307, 35 mm Bore, 80 mm OD, 21 mm Cone Wd, 18 mm Cup Wd (MPN 4T-30307)
Metric tapered roller bearing assembly with 55 mm bore, 120 mm OD, 29 mm cone width, and 21 mm cup width. Constructed with carbon steel rings and a pressed steel cage. Designed to accommodate combined radial and axial loads in applications such as gearboxes, conveyor systems, and machine tool spindles
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Metric tapered roller bearing assembly with 55 mm bore, 120 mm OD, 29 mm cone width, and 21 mm cup width. Constructed with carbon steel rings and a pressed steel cage. Designed to accommodate combined radial and axial loads in applications such as gearboxes, conveyor systems, and machine tool spindles
NTN Tapered Roller Bearing Assembly: 30311, 55 mm Bore, 120 mm OD, 29 mm Cone Wd, 25 mm Cup Wd (MPN 4T-30311)
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NTN Tapered Roller Bearing Assembly: 30311, 55 mm Bore, 120 mm OD, 29 mm Cone Wd, 25 mm Cup Wd (MPN 4T-30311)
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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NTN Tapered Roller Bearing Assembly: 31307, 35 mm Bore, 80 mm OD, 21 mm Cone Wd, 15 mm Cup Wd (MPN 4T-30307D)
NTN Tapered Roller Bearing Assembly: 30313DST, 65 mm Bore, 140 mm OD, 33 mm Cone Wd, 23 mm Cup Wd (MPN 4T-30313DST)
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NTN Tapered Roller Bearing Assembly: 30313DST, 65 mm Bore, 140 mm OD, 33 mm Cone Wd, 23 mm Cup Wd (MPN 4T-30313DST)

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