Product Details

Product Description

Name: 7.94B sewing speed: 4000r.p.m diameter: 7.94mm
Packing: plastic box packing
CHINA GC15-1 GC28-1 GC30-1.2.3 GC6-1 For:
BROTHER DB2-B714-3.B753.B736
JUKI DDL-127.227.541.555.5550
MITSUBISHI DB-126-10.130G-10.171
SINGER 281-81.83.366.400W 600W
TOYOTA AD148.156.338 D146.352

characteristic:
1, the hook line tip, pin hole, tangent to the size of the mouth to ensure that the use of rotary spindle.
2, the clearance fit precision of the inner and outer shuttle guide rail groove can be controlled within 0.01mm.
3, after a special heat treatment, rotary Suonai corrosion rust
4, after special heat treatment, the hardness of the rotary spindle can reach 800--900 degree, improve the wear resistance and prolong the service life.

Details of the improvements are as follows:
1, a modified off-line cone, off-line more smoothly.
2, the design of the hybrid slot is more reasonable.
3, the top surface and the guide line tip more smooth, more smoothly over the line.

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