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BOSTON NB12 B Spur Gear: Inch, Pitch 16, 12 Teeth, 3/8 in Bore, 14.5° PA, Steel - Inch Spur Gears with Standard Hub
BOSTONInch Spur Gears with Standard Hub

BOSTON NB12 B Spur Gear: Inch, Pitch 16, 12 Teeth, 3/8 in Bore, 14.5° PA, Steel

The BOSTON Spur Gear: Inch (SKU NB12 B, MPN NB12 B) is an inch-system spur gear with a standard hub, featuring 12 teeth, a 0.75 in pitch diameter, and a 3/8 in bore diameter. It is made of steel with a 14.5° pressure…

SKU 3G-OTH-724433

Also listed as: NB12B · NB12-B

Brand
BOSTON
Item
NB12 B Spur Gear: Inch, Pitch 16, 12 Teeth, 3/8 in Bore, 14.5° PA, Steel
Part Number
NB12 B
Category
Inch Spur Gears with Standard Hub
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Local office
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Phone
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Technical Specifications

BOSTON
Manufacturer Part Number
NB12 B
Type
Pitch 16, Steel
Material
Steel
Teeth
12
Keyway
No
Bore Dia
3/8 in
Pitch Dia
0.75 in
Pressure Angle
14.5°
System of Measurement
Inch

Technical Documents

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

Product Description

The BOSTON Spur Gear: Inch (SKU NB12 B, MPN NB12 B) is an inch-system spur gear with a standard hub, featuring 12 teeth, a 0.75 in pitch diameter, and a 3/8 in bore diameter. It is made of steel with a 14.5° pressure angle and a pitch of 16, and does not include a keyway.

Frequently Asked Questions

What is the BOSTON NB12 B spur gear used for?

The BOSTON NB12 B spur gear is used in power transmission systems to transfer motion between parallel shafts. Common applications include conveyors, machine tools, and industrial drives where precise speed and torque control are needed.

What are the specifications of the BOSTON NB12 B spur gear?

The BOSTON NB12 B is an inch-system spur gear with 12 teeth, a 0.75 in pitch diameter, a 3/8 in bore diameter, and a 14.5° pressure angle. It is made of steel with pitch 16 and no keyway.

Where to buy BOSTON NB12 B spur gear worldwide?

3G Electric supplies the BOSTON NB12 B spur gear worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time.

How to select the right BOSTON spur gear for my application?

To select the right BOSTON spur gear, match the system of measurement (inch), pitch, number of teeth, bore diameter, and pressure angle to your shaft and load requirements. Ensure the material (steel) suits your environment.

Used in

Common applications for BOSTON
CNC and linear motion systems — Boston rectangular gear racks (e.g., L514-6, L515-6) convert rotary motion to precise linear movement.
Right-angle drive assemblies — Boston spiral miter gears (HLSK104Y R/L) change shaft direction in compact industrial machinery.
Material handling and conveyors — Boston gear racks and pinions provide linear actuation for indexing and positioning mechanisms.
Packaging equipment — Boston miter gears transmit torque between intersecting shafts in synchronized drive trains.
Valve and damper actuation — Boston gear racks offer manual or motorized linear stroke for flow control devices.
Food processing machinery — Boston steel gear racks and miter gears are used in washdown-adjacent drive systems where corrosion resistance is managed through material selection and lubrication.
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BOSTON Products

3G Electric supplies BOSTON inch spur gears with standard hub. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Inch-system spur gear with standard hub, 18 teeth, 1/2 in bore diameter, 1.13 in pitch diameter, Pitch 16, 14.5° pressure angle, steel construction, no keyway. Used for power transmission between parallel shafts in moderate-load applications such as conveyors and industrial drives
BOSTON
Inch-system spur gear with standard hub, 18 teeth, 1/2 in bore diameter, 1.13 in pitch diameter, Pitch 16, 14.5° pressure angle, steel construction, no keyway. Used for power transmission between parallel shafts in moderate-load applications such as conveyors and industrial drives

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