Fhsm-702 Zigzag Buttonhole Multi-Function Computerized Domestic Sewing Machine

About Product
Features

• High/low speed selector
• Featuring 30 built-in basic stitch patterns
• LED electronic display
• Forward and reverse sewing
• Automatic thread rewind
• Sews sleeves
• Adjustable stitch length
• Drawer included
• Including all-purpose presser foot replacement holder
• Use hand switch or foot pedal to start
• One-step button sewing
• Four-step button hole sewing
• Built-in sewing light
• Includes thread cutter

About us
 Founded in 1991, Guangzhou Huafeng Mechanical & Electrical Co., Ltd. is one of the most professional manufacturers for Household Sewing Machines based in China. We are a high-tech enterprise that supplying customers with R&D, production, sales and after-sale service. With 15 assembly lines, large scale of workshops at the factory, HUAFENG has strong capability in bulk production(Output:About 450,000 Sets of Household Sewing Machines Monthly) for our customers worldwide.. 

Strict Quality Control System

Huafeng has a complete series of quality control system. The factory has got the following certificates:

1) ISO9001: 2008 Quality Control Certificate;

2) CE certificate and ROHS certificate by European Union;

 

Professional Sales &Service team

HUAFENG has its own professional sales team, providing professional Sales & After-sales service to each customer in time, keeping good communication with customers and solving the technical problems that may occur. With its high quality products and good service, HUAFENG has gained nice reputation among the customers of sewing machines around the world. We welcome OEM/ ODM production cooperation with all esteemed customers worldwide.



 

Packing and Shipping
Working Flow

Contact us 
Isabelle Chan
TEL: +86 13828401371
MOB: +86-20-6186 3083
 
Guangzhou Huafeng Mechanica & Electrical Co., Ltd.

The Tapered Roller Bearing belongs to the separation type bearing, and the inner and outer rings of the bearing have a conical raceway. This type of bearing is divided into single, double and four row tapered Roller Bearing according to the number of the roller. The single row Tapered Roller bearing can bear the radial load and the single direction axial load. When a bearing is subjected to a radial load, an axial force will be produced, so another bearing that can withstand the axial force of the opposite direction is needed to balance it.

There is a single row tapered roller bearing outer ring, the inner ring and a conical roller by maintaining a basket frame into the inner module. The outer ring can be separated from the inner ring assembly. According to the standard of the ISO tapered roller bearing dimension, any standard type tapered roller bearing outer ring or inner ring assembly should be able to achieve international interchangeability with the same type of outer ring or inner ring assembly. For example, the outer ring of the same type should conform to the ISO492 (GB307) rule besides the external dimension and tolerance. The conical angle of the inner ring assembly and the diameter of the component cone must also comply with the relevant provisions of the interchangeability.
Usually, the conical angle of the outer raceway of the single row tapered roller bearing is between 10 degrees ~19 degrees, and it can simultaneously bear the joint action of axial load and radial load. The larger the cone angle, the greater the ability to bear the axial load. The bearing of the big cone angle, the postposition code plus the B, the cone angle between 25 degrees ~29 degrees, can bear a large axial load. In addition, the single row tapered roller bearing can adjust the size of the clearance during the installation process.
The outer ring (or inner ring) of a double row tapered roller bearing is a whole. The two inner ring (or outer ring) has similar small end faces, and the middle has a spacer. The clearance is adjusted by the thickness of the spacer, and the pre interference of double row tapered roller bearings can also be adjusted by the thickness of the spacer.
The performance of the four row tapered roller bearing is basically the same as that of the double row tapered roller bearing, but the radial load of the double row tapered roller bearing is greater than that of the double row tapered roller bearing, and the limit speed is slightly lower, which is mainly used for heavy machinery.
Multi seal double, four row tapered roller bearings, ZWZ provides long life, multi seal double, four row tapered roller bearings. The new design of the bearing is personalized and the traditional design method of the fully sealed bearing is changed. A new seal structure combined with seal and dust-proof is adopted to improve the sealing effect and improve the sealing performance. Compared with open structure bearings, the life of multi seal double and four row tapered roller bearings increased by 20% to 40%, and the consumption of lubricants was reduced by 80%.

Tapered roller bearings are widely used in automobile, rolling mill, mine, metallurgy, plastic machinery and other industries.

Taper Bearing

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LUOYANG AUTO BEARING CO.,LTD , https://www.ballbearing.nl