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Boston Gear 30215917 GB21 steel spur gear with 16 diametral pitch, 21 teeth, and 14.5° pressure angle. Designed for general industrial open gearing applications requiring precise tooth engagement and moderate load capacity. Manufactured from steel for durability in power transmission drives.

Name: Boston Gear 30215917 GB21 steel spur gear with 16 diametral pitch, 21 teeth, and 14.5° pressure angle. Designed for general industrial open gearing ap
Brand: Boston Gear
Price: 63.31 USD
Availability: InStock
Rating: 5.0 (4 reviews)

MODEL GB21

BRAND

Boston Gear

SKU

35175

WEIGHT

0.101 lb

UOM

each

Contact supplier for technical support on: 800-626-2120

$63.31 Each

Prices are subject to change

FREE SHIPPING ON ORDERS OVER $100

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Typically Ships in: 1 day

Returnable: See conditions

Bore Diameter (IN)

0. 750

Face Width (IN)

0. 500

Hub Diameter (IN)

Outside Diameter (IN)

1. 440

Pitch Diameter (IN)

1. 313

Speed

1800 RPM

Torque Rating (LB IN)

58. 4 @1800 RPM MAX

Catalog Product Section

Engineering Data

Full Catalog

SKU: 37408

New lead screw gear.

Used this gear on a new lead screw l made for my old 1919 LeBlond belt drive lathe. It worked great for my application.

SKU: 34930

Quality coordinator

GOOD QUALITY AND SERVICE.

SKU: 36216

Worm

Haven't used them yet, but they match the worm gear perfectly. They should serve the purpose for which I purchased them.

SKU: 34774

Quality

very high quality. using these gears in a model 9 cylinder radial engine with a 1" bore. about 8 h.p. , for oil pump a scavenge pump timing gears and distributor . very good quality gears.

When will I be charged for my order? Do you provide credit terms? Can I get a discounted price? I am a reseller / government entity. What is the return/warranty policy? Can it be shipped today? Does “Usually ships in 24 hours” mean it’s in stock? Read full FAQ

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Reviews

SKU: 37408

New lead screw gear.

Used this gear on a new lead screw l made for my old 1919 LeBlond belt drive lathe. It worked great for my application.

SKU: 34930

Quality coordinator

GOOD QUALITY AND SERVICE.

SKU: 36216

Worm

Haven't used them yet, but they match the worm gear perfectly. They should serve the purpose for which I purchased them.

SKU: 34774

Quality

very high quality. using these gears in a model 9 cylinder radial engine with a 1" bore. about 8 h.p. , for oil pump a scavenge pump timing gears and distributor . very good quality gears.

Boston Gear 30215917 GB21 steel spur gear with 16 diametral pitch, 21 teeth, and 14.5° pressure angle. Designed for general industrial open gearing applications requiring precise tooth engagement and moderate load capacity. Manufactured from steel for durability in power transmission drives.

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