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Boston Gear738-20F-J

738-20F-J

700 Series Standard Reducer
Item #101872215
  • 3 3/4" Center Distance
  • 20:1 Ratio
  • w/Fan
  • Shaft Input
  • Right Output
  • Universal Worm Position
  • No Lubricant
  • Cast Iron
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Boston Gear738-20F-J
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    Shipment Options
  • 3 3/4" Center Distance
  • 20:1 Ratio
  • w/Fan
  • Shaft Input
  • Right Output

features

  • Large oil reservoir provides efficient heat dissipation and lubrication for longer life
  • Housing is straddle milled top and bottom for precise alignment
  • Internal baffles ensure positive, leak-free venting
  • Rugged housing fabricated of fine-grained cast iron for maximum strength and greater precision during worm and gear alignment
  • Bronze worm gear is straddle mounted between heavy-duty tapered roller bearings to increase thrust and load capacities on size 713 to 760
  • High strength steel output shaft ensures capacity for high torque
  • Pipe plugs allow easy fill, level and drain in any mounting position
  • Super finished oil seal diameters on both input and output shafts extend seal life

caution

  • Must be filled to the proper level with the recommended lubricant for your application before operation
Bolt Centers w/ Vertical Base Kits (in) 13.94 x 8.00
Max. Overhung Load @ 1750 rpm 2000 lb/in
Output RPM @ Input RPM 88 rpm @ 1750 rpm
Base to Shaft Center Height w/High Vert. Base Kit 7 in
Box Height 10 7/16 in
Output Torque @ RPM 3707 in lb @ 1750 rpm, 4325 in lb @ 1150 rpm
Bolt Center Length x Bolt Center Width 8 1/2 in x 4 3/4 in
Worm Position Universal
Base to Centerline of Output Shaft 3 7/8 in
Input Configuration Shaft Input
Input HP @ RPM 4.55 hp @ 1150 rpm, 5.95 hp @ 1750 rpm
Bolt Centers w/ Std. Base Kit (in) 10 3/8 x 7
Thermal Input Horsepower @ 1750 RPM N/A
Housing Material Cast Iron
Base to Shaft Center Height w/Std. Base Kit 7 1/2 in
Ratio 20:1
Lubrication None
HP @ RPM 5 hp @ 1800 rpm
Frame Size Shaft Input, Not a C-Face
Family Name Std Unit
Input (Shaft or Bore) Size 1 in
Reduction Type Single Reduction
Torque Out @ 1750 rpm 3707 in lb
Box Length 10 in
Output (Shaft or Bore) Size 1 5/8 in
Frame N/A
Base to Centerline of Input Shaft 7 5/8 in
Fan Cooled Yes
Torque Out @ 1150 rpm 4325 in lb
Max. Thrust Load @ RPM 1300 lb/in @ 1150 rpm, 1300 lb/in @ 1750 rpm
Shaft Assembly Code J
Max. Thrust Load @ 1150 rpm 1300 lb/in
Base No
Max. Overhung Load @ RPM 2000 lb/in @ 1150 rpm, 2000 lb/in @ 1750 rpm
Output RPM @ 1750 rpm Input 87.5 rpm
Center Distance 3 3/4 in
Motor Application General Purpose
Max. Input HP @ 100 rpm 0.61 hp
Base to Shaft Center Height w/Low Vert. Base Kit 5 1/4 in
Washdown Duty No
Output Configuration Right Output
Box Width 8 3/8 in
Weight 86.1 LB
EAN or UPC 781711534731
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