Vertical Rotary Shuttle Hook System

Vertical Rotary Shuttle Hook System

Industrial sewing machines and home models middle and high-end classes have the rotary vertical hook system or horizontal hook system. This type of shuttle hook has better performance in comparison with oscillating hook. This type of shuttle runs at high speeds and provides a reliable stitch formation. However, the sewing machines having such type a hook device are usually more expensive than sewing machines having oscillating hook.
A rotary hook sewing machine is a machine in which the hook rotates in a full circle around. In order to form one stitch, it must make two full circles around.

Vertical Rotary Shuttle Hook System

In this post you will learn how works vertical rotary hook and will find some tips for repair it.

Vertical Rotary Shuttle Hook System

This shuttle hook has bobbin case similar to the sewing machines with oscillating shuttle hook. But this bobbin case does not have a "finger" on the top.

Vertical Rotary Shuttle Hook System

Let's remove the needle plate and take a look inside this device.

Vertical Rotary Shuttle Hook System

I recommend periodically remove the needle plate and to clean the shuttle mechanism with brush.
See: How to clean and oil a sewing machine.

Vertical Rotary Shuttle Hook System

Now let's see the work of the vertical rotary shuttle. We will to lower the needle down stepwise.

Vertical Rotary Shuttle Hook System

First, the hook tip must go into the needle loop.
The hook point should pass very close (0.15mm) to the needle. At the same time the hook point should pass above the top of needle eye about on 1.5 - 2.5 mm.

Vertical Rotary Shuttle Hook System

The hook begins to turn to the left and to pull the thread down.

Vertical Rotary Shuttle Hook System

The hook begins turn around to the left and to pull top thread down.
During turning around the hook begins more and more pull top thread down.

Vertical Rotary Shuttle Hook System

At this point, the thread slips off the surface of the shuttle hook and the sewing machine starts very sharply lift top thread up.

Vertical Rotary Shuttle Hook System

In this position top needle thread start pull the lower thread to form the stitch.

Vertical Rotary Shuttle Hook System

But to form a stitch completely the vertical rotary hook must do a new full circle but now without pulling top thread.

English isn't my first language, so please excuse any mistakes and help correct them.
E-mail for sending is on the contact page.

Related Tutorials and Tips:

How to Choice Your First Sewing Machine
How to Choose Your First Sewing Machine

Buying a sewing machine for beginner is an important event. Here are some helpful tips how to choose your first sewing machine.

How to use the coverstitch machine
How to use the coverstitch machine

The coverstitch machine is most used for sewing the clothing made of knit jersey fabrics. Here you find a tutorial how to use the coverstitch machine.

Tips for Sewing with Leather
Tips for Sewing with Leather

If you are working with leather and faux leather here you find a few helpful tips for sewing with leather.

Steps to Shirring with Elastic Thread
Steps to Shirring with Elastic Thread

Shirring technique is often used for decoration of dress's or skirt's waistline. In this tutorial you learn how to sew with elastic thread.

How to Install the Invisible Zipper
How to Install the Invisible Zipper

Knowing how to sew an invisible zipper is an important skill every sewer should master. Here are steps of installing a zipper with 30 photos and tailor's comments.

How to Thread a Sewing Machine
How to Thread a Sewing Machine

This is the universal tutorial for threading any sewing machines and winding a bobbin. More than 30 photos with pro comments help you learn how thread your sewing machine.

Tips for Using your Sewing Machine
Tips for Using your Sewing Machine

If you need to learn tips from tailor read this post. Here you find top tips and tricks how to use your sewing machine.

My sewing patterns pdf
Patterns and Tutorials PDF

Top