R Series Helical Gear Box for Plastic Extruder with Motor


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R Series Helical Gear Box for Plastic Extruder with Motor

The R Series Helical Gear Box for Plastic Extruder with Motor is a high-quality gearbox designed specifically for plastic extruder applications. It is widely used in various industries such as motor, machinery, marine, agricultural machinery, and more.

Product Description:

– Application: Motor, Machinery, Marine, Agricultural Machinery
– Hardness: Hardened Tooth Surface
– Installation: Vertical Type
– Layout: Coaxial
– Gear Shape: Helical
– Step: Single-Step

Product Features:

– High modular design.
– Integrated casting housing, compact dimension, high loading support, stable transmitting, and low noise level.
– Perfect oil leakage prevention with good sealing properties, suitable for a wide range of industries.
– Special design for pug mill applications.
– High efficiency and power-saving.
– Cost-effective and requires low maintenance.

Main Applications:

– Chemical agitator
– Hoist and transport
– Steel and metallurgy
– Electric power
– Coal mining
– Cement and construction
– Paper and light industry

Product Parameters:

– 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, SKF, FAG, INA, NSK.
– Brand of oil seal: NAK — Taiwan or other brands requested


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

Q: How long is your delivery time?
A: Generally, it is 5-10 days if the goods are in stock, or 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 a trial order for quality testing.

Q: How to choose a gearbox that meets your requirement?
A: You can refer to our catalog to choose the gearbox or we can help you choose when you provide the technical information of the required output torque, output speed, and motor parameters, 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 information, etc.
b) Housing color.
c) Purchase quantity.
d) Other special requirements.

Other Products from EVER-POWER GROUP:

– Plastic Spur Gear
– Plastic Helical Gear
– Plastic Worm Gear
– Plastic Bevel Gear
– Plastic Pinion Gear
– Plastic Nylon Gear
– Plastic Transmission Gear
– Plastic Sprocket Gear
– Plastic Wheel Gear
– Plastic Injection Gear
– Plastic Ring Gear
– Plastic Rack Gear

We offer high-quality products, favorable prices, and considerate service. We welcome customers to come to us for customized products based on drawings or samples.


Q: Are your plastic gears durable?
A: Yes, our plastic gears are made from high-quality materials to ensure durability and long-lasting performance.

Q: Can I use your plastic gears in a high-temperature environment?
A: Our plastic gears have excellent heat resistance and can withstand high temperatures.