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Xi'an Weikeduo Electrical & Mechanical Equipment Co., Ltd.

Speed Increasing Gear Box manufacturer / supplier in China, offering Speed Increasing Gear Box of 135m Finishing Mill, High Speed Wire Rod Rolling Mill Machinery, Hot Rolling Mill From Chinese Manufacturer and so on.

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Supplier Homepage Product Metal Casting Speed Increasing Gear Box of 135m Finishing Mill

Speed Increasing Gear Box of 135m Finishing Mill

FOB Price: US $10,000 / Piece
Min. Order: 100 Pieces
Min. Order FOB Price
100 Pieces US $10,000/ Piece
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Payment Terms: L/C, T/T

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Basic Info
  • Casting Method: Sand Casting
  • Casting Metal: Cast Steel
  • Surface Treatment: Polishing
  • Coating: Water
  • Standard: AISI
  • Highest Speed Output Ratio: 0.251497
  • Motor Power: 4800kg
  • High-Speed Output Shaft Speed: 4004r/Min
  • Motor Working Speed: 1007r/Min
  • Casting Form Material: Metal
  • Casting Form Usage Count: Semi-permanent
  • Surface Roughness: Ra0.8
  • Machining Tolerance: +/-0.10mm
  • Certification: ISO 9001:2000
  • Lowest Speed Output Ratio: 0.311377
  • Motor Speed: 750/1100r/Min
  • Low-Speed Output Ratio: 3234r/Min
  • The Backlash Is Less Than: 0.36mm
Product Description
Composition of speed increasing gearbox

Spare parts of speed increasing gearbox case(lower case, middle case and cover), support base, big gear, transmission axis, bevel wheel and lubrication system.


2,Technical characteristics

Box is melt with thick steel with great quality to reach the intensity that the case required. Case should take stress aging treatment before the produce to reach the stability that required. High precision lathe machining is used for the assembly of cases to insure the locating accuracy of each bearing holes and related joint surface. 

Big gears and gear shaft used carbon alloy steel forging blank, after roughing, workpiece need to take ultrasonic flaw detection process to quench. In order to ensure the tooth surface with high hardnesstooth surface need to take carburizing and quenching treatment after semi-finishing .Fine grind of tooth surface to insure the high accuracy, after finishing the production of gear, the balance test is needed, the trail speed is 1500r/min and the balance precision grade is G2.5. the trail speed of bevel wheel is 3500r/min, the balance precision grade is G1, in so to ensure the rotary precision of the gears.
Transmission shaft use the alloy steel forging blank, transmission shaft takes quenched to make sure the intensity and durableness. After the semi- finishing, transmission need to grind to guarantee the accuracy of every workpiece.
When the assemble finished, the no-loading test should be keep 2-4hours, the speed is 1100r/min, the temperature of shaft should not exceed 40ºC,the work of gear should be smooth, no hitting noise and concussion, every joint surface should not have oil spill phenomenon. 

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Mr. Kevin Qian
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