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BOSTON NB18B Spur Gear, Inch, 18 Teeth, 1/2 in Bore, 14.5° Pressure Angle, Steel - Inch Spur Gears with Standard Hub
BOSTONInch Spur Gears with Standard Hub

BOSTON NB18B Spur Gear, Inch, 18 Teeth, 1/2 in Bore, 14.5° Pressure Angle, Steel

The BOSTON Spur Gear: Inch (SKU NB18B, MPN NB18B) is an inch-system spur gear with a standard hub, featuring 18 teeth, a 1/2 in bore diameter, and a 1.13 in pitch diameter. It is made of steel with a Pitch 16 and a…

SKU 3G-OTH-724437

Brand
BOSTON
Item
NB18B Spur Gear, Inch, 18 Teeth, 1/2 in Bore, 14.5° Pressure Angle, Steel
Part Number
NB18B
Category
Inch Spur Gears with Standard Hub
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Technical Specifications

BOSTON
Manufacturer Part Number
NB18B
Type
Pitch 16, Steel
Material
Steel
Teeth
18
Keyway
No
Bore Dia
1/2 in
Pitch Dia
1.13 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 NB18B, MPN NB18B) is an inch-system spur gear with a standard hub, featuring 18 teeth, a 1/2 in bore diameter, and a 1.13 in pitch diameter. It is made of steel with a Pitch 16 and a 14.5° pressure angle, and has no keyway.

Frequently Asked Questions

What is the BOSTON NB18B spur gear used for?

The BOSTON NB18B spur gear is used in power transmission systems to transfer motion between parallel shafts. Its 14.5° pressure angle and steel construction suit moderate-load applications in conveyors, packaging machinery, and industrial drives where precise inch-system gearing is required.

What are the specifications of the BOSTON NB18B spur gear?

The BOSTON NB18B is an inch-system spur gear with 18 teeth, a 1/2 in bore diameter, and a 1.13 in pitch diameter. It has a Pitch 16, 14.5° pressure angle, is made of steel, and has no keyway. The manufacturer part number is NB18B.

Where to buy the BOSTON NB18B spur gear worldwide?

3G Electric supplies the BOSTON NB18B spur gear to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this inch-system spur gear with standard hub.

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 (16), pressure angle (14.5°), and bore diameter (1/2 in) to your shaft and mating gear. Ensure the material (steel) and tooth count (18) meet your torque and speed requirements. Consult a gear catalog for load ratings.

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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