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Brass Internal Tooth Gear 48 Pitch 72 Teeth

5.0 out of 5 stars 1 customer review

Currently unavailable.
We don't know when or if this item will be back in stock.

Specifications for this item
Brand Name Boston Gear
Part Number GBI-48072
Material Type Brass
System of Measurement Inch
Bore Diameter 2.00  inches
Hub Diameter 2.00  inches
Number of Teeth 72
Number of Items 1
UNSPSC Code 31171700

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Product Description

Internal Gears have the teeth cut on the inside of the rim rather than the outside. When used with pinions, more teeth carry the load and it is distributed more evenly. This distribution of load decreases the pressure intensity and extends the life of the gear. The compact arrangement of an Internal Gear also means the center distance for a given velocity is shorter than that of an external gear.

Product Details

  • Shipping Weight: 0.8 ounces
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0017HJDH6
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
  • Amazon Best Sellers Rank: #1,363,163 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

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Verified Purchase
This is the off the shelf recommended gear for those wonderful - and seen as somewhat strange - steam engines with straight movements derived from the type of cyclic effect of these inner gears.
While these gears are rather expensive for a small engine and a hobby at that, it is a great time saver and will encourage further exploration .
The quality is impeccable, top industrial quality. You need to make or purchase the mating gear.
These reviews directly strictly as their application to small steam engines.
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