Quick Details

Place of Origin:

Zhejiang, China

Brand Name:


Model Number:


Rated Power:


Gearing Arrangement:


Output Torque:


Input Speed:


Output Speed:



blue or customized

Toothed Portion Shape:

Double Helical Gear

Manipulate Way:

Semi-Automatic Manipulation




Mineral / Synthetic


homemade bearing


Aluminium alloy

Noise Level:

Less Than 60db



Extra service:


Supply Ability

Supply Ability:
10000 Set/Sets per Month

Packaging & Delivery

Packaging Details
1 set / carton,several cartons / wooden pallet
ningbo/shanghai/international express
Lead Time
within 5-35days

Online Customization

PC series worm reducer gears with Pre-stage helical unit

Product Description


FittingtheprestagehelicalmoduleonthemainreductionunitiseasilydoneasforanymotoroftypeB14. Theprestageunitcannotbeusedbyitself,butonlycoupledwithanotherreductionunit.

Model: PC 071-NMRV 063-40 E F1 AZ B3

PC Helical pre-stage unit
071 Frame size
NMRV Code of worm-gear speed reducer
063 Distance between the centers of worm and worm gear
40 Speed ratio of worm-gear speed reducer
E Double extension worm shaft, no mark means single extension worm shaft
F1 Output flange, no mark means without output flange
AZ AZ means bidirectional output shaft, GZ means unilateral output shaft and no mark means hole output.
B3 Installation position code

Packaging & Shipping

Packaging: 1 set / carton,several cartons / wooden pallet

Our Services

All gearbox supplied by Smart Equipment have been subject to standard process and strict testing to ensure product lifetime.

Quality control:

(1) Quality guarantee: 1 year

(2) Certificate of quality: ISO9001:2000

(3) Every product must be tested before sending

Company Information


1.when ordering, please refer to the details of the products and tell us the exact type your need, like input speed,output torque,configuration,installation,etc.

the installation position of the products youordered should accord with your actual needs, otherwise it will result in oil leakage, which will impact the servinglife of the products. if there is special requirement to the installation position,please stress it and inform us.

2.to attain the excellent state of the variators, the common working speed should be chosen in the middle position,instead, it is not appropriate to choose in the positions of min,or max.speed.

3.if your requirements of worm gearbox or speed variator are different from the standard products as in thecatalogue, like:some portion that should be customized or mounted with special motors,please inform us in advance.


Q: Why choose Sihai Machinery, any advantage?

A:The answer is Yes. Thereare 3advantages.
(1)MUTUAL BENEFIT: Our offer will be reasonable, ourprice will be cheaper inthesame quality.
(2) CUSTOMIZE: We can make the product as yourrequest, Shapeand Quality can meet your request.
(3) MIX ORDER: We accept mix order, different model and small quantity order.

Q:MayIhave your catalogue and price list for trial order in MOQ quantity?
A: All ourproducts were shownon alibaba, please have a detailedlooking and choosethe interestedmodels in our site.

Q:IfIorder big quantity, what’s the good price?
A:Please send the details enquiry to us, such as the Item Number, Quantity for each item, Quality request, PaymentTerms, Transport method etc. We will make the accurate quotation to you assoon as possible.

For more details, pls contact us freely!