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Boston Gear® QC721-25-B5-G | Eastern Industrial Automation
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Boston Gear® QC721-25-B5-G

Boston Gear® QC721-25-B5-G QC700 Single Reduction Right Angle Helical Worm Gear Drive, Coupled Short Flange Input, Solid Shaft Output, 1.16 hp Input/0.97 hp Output/1 hp Motor Horsepower, 25:1 Ratio Gear, 70 rpm Speed, 875 in-lb Torque


  • Brand: Boston Gear®
  • MPN: QC721-25-B5-G
  • Part No: QC721-25-B5-G
  • UPC: 781711555408
    • Min. Order Qty: 1
    • Quantity Interval: 1

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The QC 700 series is the answer to your problem of a quicker reducer to motor assembly time. The new quick connect, self aligning coupling makes installation a breeze. This unique design solves problems for OEMs and maintenance engineers alike.

Boston Gear® Right Angle Helical Worm Gear Drive, Single Reduction, Series: QC700, 25:1 Gear Ratio, 1.16 hp Input/0.97 hp Output/1 hp Motor, Coupled Short Flange Input, Solid Shaft Output, 5/8 in Input, 1 in Output, 70 rpm Maximum, 875 in-lb, 2.06 in Centre Distance, 3/16 x 3/32 in Keyway, 0.84 Efficiency, Klubersynth UH1 6-460 Lubrication, No Base Mount, Cast Iron, Standard Gray Paint, 6 in L x 7.28 in W x 6.38 in H

Maximum Speed      :      70 rpm
Lubrication Type      :      Klubersynth UH1 6-460
Centre Distance      :      2.06 in
Output Size      :      1 in
Input Size      :      5/8 in
Keyway Size      :      3/16 x 3/32 in
Efficiency      :      0.84 %
Dimensions      :      6 in L x 7.28 in W x 6.38 in H
Type      :      Single Reduction
Horsepower      :      1.16 hp Input/0.97 hp Output/1 hp Motor
Series      :      QC700
Mounting Type      :      No Base
Finish      :      Standard Gray Paint
Material      :      Cast Iron
Gear Ratio      :      25:1
Output Type      :      Solid Shaft
Input Type      :      Coupled Short Flange
Torque Rating      :      875 in-lb
  • Precision ground worm threads maximize gearbox efficiency
  • At low ratio efficiencies of 90 to 95% are common
  • The 700 series large oil reservoir provides efficient heat dissipation and lubrication for longer operating life
  • Its multi position mounting flexibility allows for installation in virtually any position
  • Housings are straddle milled, top and bottom for precise alignment of horizontal and vertical bases
  • Internal baffles assure positive and leak free venting
  • The 700 series rugged housing, fabricated of fine grained, gear quality cast iron, provides maximum strength for maximum durability, as well as greater precision during worm and gear alignment
  • Boston Gear®'s 700 series high strength bronze worm gear is straddle mounted between heavy duty tapered roller bearings to increase thrust and overhung load capacities
  • Our 700 series high strength steel output shaft assures capacity for high torque and overhung loads
  • Pipe plugs allow easy fill, level and drain in any mounting position
  • The 700 series super finished oil seal diameters on both input and output shafts extend seal life
  • Standard oil sea
  • pdf Data/Spec Sheet-1 https://www.easternia.com//ASSETS/DOCUMENTS/ITEMS/EN/Boston_Gear_71010G_Specification_Sheet_1.pdf
  • pdf Data/Spec Sheet-2 https://www.easternia.com//ASSETS/DOCUMENTS/ITEMS/EN/Boston_Gear_71010H_Specification_Sheet_2.pdf
  • pdf Catalog-2 https://www.easternia.com//ASSETS/DOCUMENTS/ITEMS/EN/Boston_Gear_71015G_Catalog_2.pdf
  • pdf Instruction/Installation Sheet https://www.easternia.com//ASSETS/DOCUMENTS/ITEMS/EN/Boston_Gear_71020J_Installation_Sheet.pdf
  • pdf Brochure https://www.easternia.com//ASSETS/DOCUMENTS/ITEMS/EN/Boston_Gear_71040H_Brochure.pdf
  • pdf Brochure-1 https://www.easternia.com//ASSETS/DOCUMENTS/ITEMS/EN/Boston_Gear_71050G_Brochure_1.pdf
  • pdf Catalog-1 https://www.easternia.com//ASSETS/DOCUMENTS/ITEMS/EN/Boston_Gear_71050H_Catalog_1.pdf