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  • Martin 1 3V 300 JA Narrow V-Belt Drive Sheave, 3V Belt Section, 1 Groove, JA Bushing required, Class 30 Gray Cast Iron, 3" OD, 8270 max rpm, 2.95" Pitch Diameter
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by Martin

Martin 1 3V 300 JA Narrow V-Belt Drive Sheave, 3V Belt Section, 1 Groove, JA Bushing required, Class 30 Gray Cast Iron, 3" OD, 8270 max rpm, 2.95" Pitch Diameter


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Specifications for this item
Brand Name Martin
Part Number 1 3V 300 JA
UPC 697950085128
Material Type Cast Iron
System of Measurement Inch
Cross Section 3V
Number Of Grooves 1
Bore Diameter 1.25  inches
Outside Diameter 3  inches
Pitch 2.95  inches
EAN 0697950085128
Face Width 0.69  inches
Grade Class 30
Max Rotational Speed 8270  RPM
Number of Items 1
Outside Diameter Tolerance +/- .020  inches
Overall Length 1.06  inches
Size 8270 max rpm
Style Name 2.95" Pitch Diameter
UNSPSC Code 24101613

This Martin narrow V-belt drive sheave with a 3V belt section is made of 30... Read full product description



Product Features

  • Narrow V-belt sheave fits narrow profile V-belts for increased drive efficiency over classical V-belts
  • Class 30 gray cast iron for resistance to wear and galling
  • 3V belt or cross section
  • One groove for single belt use

Product Details


Product Description

This Martin narrow V-belt drive sheave with a 3V belt section is made of 30 gray cast iron and comes with one groove. It is a narrow V-belt sheave that fits narrow profile V-belts , allowing the use of smaller or fewer belts than classical V-belts to transmit an equivalent load, maximizing power transmission efficiency by reducing drive weight and size. This pulley is made of class 30 gray cast iron for resistance to wear, corrosion, and galling. It has a 3V cross section and one groove for use with multiple or banded belts. V-belt pulleys (sheaves) are used in a wide range of mechanical and electronic drives, including HVAC units, farm machinery, food processing equipment, and home appliances, among others.

V-belt pulleys (sheaves) are the component in a power transmission drive that transmits power to the belt. Typically made of cast iron, the pulleys and the V-belts that loop around them match in form – wide (classical) or narrow, single or multi-grooved. V-belt pulleys are found in drive designs in the agriculture, textile, printing, mining, and office equipment industries.

Martin Sprocket & Gear manufactures power transmission and conveying products. The company, founded in 1951 and headquartered in Arlington, TX, provides tools that meet American National Standards Institute (ANSI), National Aerospace Standard (NAS), and Deutsches Institut für Normung (DIN) standards.


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