• Model NO.：k77
• Type：Gear Reducer
• Delivery Time：3-15 Days
• Certificate：CE
• OEM：OEM Service
• Color：Grey Ral7031,7040, Blue Ral5010
• Transport Package：Wooden Box
• Trademark：DAWANG
• Origin：China
• HS Code：8483409000
• Production Capacity：1300 Unit Per Month

Basic Info.

Model NO. k77 Type Gear Reducer Delivery Time 3-15 Days Certificate CE OEM OEM Service Color Grey Ral7031/7040, Blue Ral5010 Transport Package Wooden Box Trademark DAWANG Origin China HS Code 8483409000 Production Capacity 1300 Unit Per Month

Product Description

Product Features

High modular design, biomimetic surface with owned intellectual property right.
Adopt German worm hob to process the worm wheel.
With the special gear geometry, it gets high torque, efficiency and long life circle.
It can achieve the direct combination for two sets of gearbox.
Mounting mode: foot mounted, flange mounted, torque arm mounted.
Output shaft: solid shaft, hollow shaft.

Technical data:

Housing material	Cast iron/Ductile iron
Housing hardness	HBS190-240
Gear material	20CrMnTi alloy steel
Surface hardness of gears	HRC58°~62 °
Gear core hardness	HRC33~40
Input / Output shaft material	42CrMo alloy steel
Input / Output shaft hardness	HRC25~30
Machining precision of gears	accurate grinding, 6~5 Grade
Lubricating oil	GB L-CKC220-460, Shell Omala220-460
Heat treatment	tempering, cementiting, quenching, etc.
Efficiency	94%~96% (depends on the transmission stage)
Noise (MAX)	60~68dB
Temp. rise (MAX)	40°C
Temp. rise (Oil)(MAX)	50°C
Vibration	≤20µm
Backlash	≤20Arcmin
Brand of bearings	China top brand bearing, HRB/LYC/ZWZ/C&U. Or other brands requested, INA, NSK.
Brand of oil seal	NAK --- Taiwan or other brands requested

Q: Are you trading company or manufacturer?
A: We are factory.
 

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock.
 

Q: Can we buy 1 pc of each item for quality testing?
A: Yes, we are glad to accept trial order for quality testing.

Q:How to choose a gearbox which meets your requirement?
A:You can refer to our catalogue to choose the gearbox or we can help to choose when you provide
     the technical information of required output torque, output speed and motor parameter etc.

Q: What information shall we give before placing a purchase order?
A:a) Type of the gearbox, ratio, input and output type, input flange, mounting position, and motor informationetc.
     b) Housing color.
     c) Purchase quantity.
    d) Other special requirements.