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Happy Machine - Needle Bar Driver Roller Bearings

Happy Embroidery Machine:

 

Happy Needle Bar Driver:


Some Happy Embroidery machines use a Needle Bar Driver and roller bearings instead of a Reciprocator. The needle bar Driver is shown in the diagram below as part number 22. The whole assembly may not be available but you can order the roller bearings and the C-clamps.

If it has been awhile since you have had these changed it may be a good idea to replace them. When the roller bearing wear out they may give the same symptoms as a broken reciprocator.

 

 

 

HCA-08022 small

Happy Needle Bar Driver:

  • Stopper Pin - M0408933
  • E-Clip - MPR00290
  • Slide Block - HCA0081
  • 8mm Roller - M0408942
  • 16mm - HMF08230

 

HCG-08110 small

Happy Needle Bar Driver:

  • Stopper Pin - M0408933
  • E-Clip - MPR00290
  • Slide Block - HCA0081
  • 8mm Roller - M0408942
  • 16mm - HMF08230

M04-08276 small

Happy Needle Bar Driver:

  • E-Clip - MPR00300
  • Slide Block - HCA0081
  • 8mm Roller - M0408942
  • 12mm - M0408972

Upper Face Plate:

One other thing that you may want to have on hand for some models of Happy machines is a Cushion B shown in the diagram as part number 29. Cushion B may be black or white in color.

If you are ordering one of these you may want to get parts 28, 29, 30, and two screws, part 31s.

 

Example:


Upper Face Plate:

HCG-08110 small

  • 27 SGAB2E005 Flat Head Screws(Crossed Recessed Head, M2.5X5) 2 per head
  • 28 M0408423 Holding Plate
  • 29 M0408412 Cushion
  • 30 M0408430 Plate Nut
 

 

Rotary hooks

Rotary hooks rotate twice every time the needle comes down, so if you run your machine at 700 stitches per minute the hook spins at 1400 stitches per minute (SPM). The interior of the Hook has a rail that slides in a raceway and holds the hook together. There are no bearings, so the rail and raceway are metal on metal. This is the only point on the machine that most manufactures recommend you lubricate every four hours of use. ​Rotary hooks may need to be replaced at around 3 to 5 years, depending on use and maintenance of the machine.

Symptoms that could be caused by a worn or damaged Rotary hook are:

  • Birds nesting

  • Broken needles

  • Fraying thread

  • The machine not being able to maintain timing

​Note: These same symptoms may be caused by other issues also.​Note: The Toyotas and some Tajimas will sew with generic Rotary Hooks but may sew better with an Eccentric Hook. The difference is that the timing point lifts to meet the needle so that the needle does not have to penetrate the cloth as far. This makes the machine sew better with caps.Note: Rotary hook prices rages from about $18.00 to over $300.00 a piece. Quality does make a difference.

 

Here are two examples:

  • M Size Brother Rotary Hook for 4 and 6 Head Machines - Product ID: SA1648001 - $298.24
  • L Size Economy Rotary Hook - Product ID: KHS12-RY-DE - $18.50

 

My suggestions for Rotary Hooks from SEWMANYPARTS.com:

Note: Refer your your parts books and manufacturers suggestions for your machine.

  • Eccentric Hooks for Toyota and Tajima = L Size Tajima Eccentric Rotary Hook with Oil Tank - Product ID: 050210140017 - $92.00
  • Regular Hooks = L Size Tajima Rotary Hook with Oil Tank - Product ID: 050210170019 - $87.12

 

 

 

 



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