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  • Martin BK47 1 1/8 FHP Sheave BS, 4L/5L or B Belt Section, 1 Groove, 1-1/8" Bore, Class 30 Gray Cast Iron, 4.45" OD, 5575 max rpm, 3.7 Datum/4.1 Datum
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by Martin

Martin BK47 1 1/8 FHP Sheave BS, 4L/5L or B Belt Section, 1 Groove, 1-1/8" Bore, Class 30 Gray Cast Iron, 4.45" OD, 5575 max rpm, 3.7 Datum/4.1 Datum


List Price: $45.50
Price: $35.76 & FREE Shipping. Details
You Save: $9.74 (21%)
Only 4 left in stock (more on the way).
Ships from and sold by Amazon.com. Gift-wrap available.

Specifications for this item
Brand Name Martin
Part Number BK47 1 1/8
UPC 697950121802
Material Type Cast Iron
Bore Diameter 1.125  inches
Outside Diameter 4.45  inches
Bore Diameter Tolerance + .002 - .000  inches
EAN 0697950121802
Grade Class 30
Max Rotational Speed 5575  RPM
Number of Items 1
Outside Diameter Tolerance +/- .020  inches
Overall Length 1 5/32  inches
Size 5575 max rpm
Style Name 3.7 Datum/4.1 Datum
UNSPSC Code 24101613

FHP Sheave BS. Read full product description



Product Features

  • For light duty applications such as HVAC
  • Tolerances adhere to industry guidelines
  • Precise machining and processes ensure consistent finish and high quality

Product Details

  • Shipping Weight: 2.2 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item can be shipped to select countries outside of the U.S. Learn More
  • ASIN: B004BKJ9PC
  • Average Customer Review: 5.0 out of 5 stars  See all reviews (1 customer review)
  • Amazon Best Sellers Rank: #394,162 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Product Description

FHP Sheave BS.

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I bought this for converting an old Powermatic Model 90 lathe from Reeves drive to step-cone drive. That is cheaper than repairing the Reeves drive. It is also much quieter and gives me lower speeds (down to about 270 rpm) than are possible with the original lathe transmission (slowest was about 700 rpm). Putting two sizes of this pulley on the headstock spindle is what gives me two speed ranges. These sheaves are heavy and well-machined.
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