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BOSTON Spur Gear: Inch, Pitch 20, 12 Teeth, 5/16 in Bore Dia, 14.5° Pressure Angle - Inch Spur Gears with Standard Hub
BOSTONInch Spur Gears with Standard Hub

BOSTON Spur Gear: Inch, Pitch 20, 12 Teeth, 5/16 in Bore Dia, 14.5° Pressure Angle

The BOSTON Spur Gear: Inch (SKU 1L948, MPN NA12B) is an inch-system spur gear with a standard hub, featuring 12 teeth, a 5/16 in bore diameter, and a 0.6 in pitch diameter. It is made of steel with a 14.5° pressure…

SKU 3G-OTH-724460

Brand
BOSTON
Item
Spur Gear: Inch, Pitch 20, 12 Teeth, 5/16 in Bore Dia, 14.5° Pressure Angle
Category
Inch Spur Gears with Standard Hub
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Technical Specifications

BOSTON
Manufacturer Part Number
NA12B
Type
Pitch 20, Steel
Material
Steel
Teeth
12
Keyway
No
Bore Dia
5/16 in
Pitch Dia
0.6 in
Pressure Angle
14.5°
System of Measurement
Inch
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BOSTON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BOSTON Spur Gear: Inch (SKU 1L948, MPN NA12B) is an inch-system spur gear with a standard hub, featuring 12 teeth, a 5/16 in bore diameter, and a 0.6 in pitch diameter. It is made of steel with a 14.5° pressure angle and a pitch of 20, and has no keyway.

Frequently Asked Questions

What is the BOSTON NA12B spur gear used for?

The BOSTON NA12B spur gear is used in inch-system power transmission applications where precise speed and torque control are needed. Common in industrial machinery, conveyors, and gearboxes, it features 12 teeth, a 5/16 in bore, and a 14.5° pressure angle for smooth engagement.

What are the specifications of the BOSTON NA12B spur gear?

The BOSTON NA12B is an inch-system spur gear with 12 teeth, a 5/16 in bore diameter, a 0.6 in pitch diameter, and a 14.5° pressure angle. It is made of steel with a pitch of 20 and has no keyway. The manufacturer part number is NA12B.

Where to buy the BOSTON NA12B spur gear worldwide?

3G Electric supplies the BOSTON NA12B spur gear to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this inch-system spur gear for your power transmission needs.

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 (20), pressure angle (14.5°), and bore diameter (5/16 in) to your shaft and mating gear. Ensure the material (steel) suits your load and environment. 3G Electric can help you verify compatibility.

Used in

Common applications for BOSTON
Compressed air systems — BOSTON Easy Couple nitrile bulk air hoses with vinyl nitrile or neoprene covers
Water transfer and suction — BOSTON vinyl nitrile water suction and discharge hose assemblies with wire helix reinforcement
Petroleum handling — BOSTON corrugated cover gasoline hose assemblies for fuel transfer
Bulk material transport — BOSTON rubber blend material-handling hoses with natural rubber cover for grains and aggregates
Industrial maintenance — BOSTON hoses for general-purpose air and water applications in plant operations

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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