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This section provides an overview for guide bushings as well as their applications and principles. Also, please take a look at the list of 5 guide bushing manufacturers and their company rankings. Here are the top-ranked guide bushing companies as of December, 2024: 1.Berkness Company, 2.Schlenker Spannwerkzeuge GmbH & Co. KG, 3.Hardinge Inc..
Table of Contents
A guide bushing is a fixture used in automatic lathes with spindle movement for precision component machining. Its purpose is to precisely hold the workpiece during processing.
Automatic lathes are machines that rotate the spindle gripping the material with a chuck while performing cutting operations with blades. There are two types of automatic lathes: those with a spindle that moves in the Z-direction while bringing the workpiece into contact with the blade for cutting (spindle-moving type) and those with a fixed spindle while moving the blade for cutting (spindle-fixed type).
In both types of automatic lathes, when the distance from the chuck, holding the material, to the blade becomes long, deflection and vibration increase, making precise machining difficult. Therefore, in spindle-moving automatic lathes, the guide bushing is used near the cutting point to hold the material, enabling higher precision machining. This fixture is referred to as the guide bushing.
The guide bushing is used in spindle-moving automatic lathes to accurately hold the material, enhancing the precision of cutting operations. However, while it is an essential fixture for spindle-moving automatic lathes, there are cases where it is not used.
Spindle-moving automatic lathes are suitable for machining thin and long precision parts. Originating in Switzerland and known as Swiss-type automatic lathes, these machines were developed for machining precision parts for watches. Guide bushings prove useful when dealing with product shapes that result in long distances between the chuck and the part where the blade makes contact, or when the material itself is thin and prone to deflection. The application of guide bushings extends beyond watch components to various industries, including medical devices, aerospace parts, and automotive components.
The guide bushing is fundamentally cylindrical and is attached just before machining in a Swiss-type automatic lathe. In addition to cylindrical guide bushings, there are square and hexagonal variations. The mainstream materials are steel with attached carbide, although some feature ceramics or cermet.
Attachment methods include a taper at the end of the guide bushing for press-fitting or a threaded part for screwing. Some guide bushings have a flange with screw holes, allowing them to be securely attached to the main body using screws.
Guide bushings play a role in supporting materials in extremely narrow gaps during installation, allowing the material to rotate while minimizing deflection and vibration. In addition, they are designed to enable the material to move in and out in the Z-axis direction along with the spindle's Z-axis movement. Consequently, machines that synchronize the rotation of the guide bushing with the spindle's rotation have become prevalent.
Some automatic lathes allow machining without using guide bushings, providing guide bushing detachable models. While guide bushing mechanisms inevitably result in the waste of material at the end of the spindle collet chuck to the guide bushing, guide bushing-less mechanisms allow more economical utilization of the material until the end.
The shape, size, and attachment method of usable guide bushings vary by automatic lathe manufacturer. When selecting guide bushings, the first step is to choose from products compatible with the automatic lathe used in-house.
Choosing a guide bushing with a smaller difference between the material's outer diameter and the guide bushing's inner diameter makes it easier to prevent deflection and vibration, enhancing performance.
Moreover, considering the surface condition of the material, it is crucial to select the material and surface treatment of the guide bushing appropriately. For instance, when machining hard materials like stainless steel or titanium alloys, opting for a high-wear-resistant guide bushing, such as one with attached carbide, is advisable.
*Including some distributors, etc.
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iSwiss Corporation is a manufacturer of tool and work-holding products, established in 2016 and situated in Manchester, Connecticut. Its primary range of products comprises collets, guide bushings, bar feed collets, insert systems, along with tool protection covers, coolant delivery systems, and various other offerings. Custom-sized collets can also be accommodated by the company, while its available collet types for in-house grinding encompass TF20, TF25, TF37, as well as TF48, and TF48NFT.
APSX LLC, established in 2006 and headquartered in Blue Ash, Ohio, is a manufacturer of advanced production solutions. The company mainly specializes in producing plastic injection machines, CNC machines, molds, machine parts, and motor control accessories, in which their products are employed in the low-volume production of plastic and metal parts as well as in prototype and testing processes. APSX's offerings enable efficient manufacturing processes, quality end products, and improved automation capabilities.
Hardinge, Inc., established in 1890 and headquartered in Elmira, NY, USA, is a supplier of computer-controlled machine tool solutions. The company offers rotary solutions, honing equipment, and repair parts. Its diverse offerings include Swiss work holding, FlexC quick change work holding, and sure-grip expanding systems. It provides tooling system holders, collets, and accessories in tool holding. Its rotary solutions encompass trunnions, dual-axis indexers, and various rotary tables such as 5C² and 16C² Indexers. The company's products cater to the machining needs of the aerospace, automotive, and medical industries.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Berkness Company |
25.0%
|
| 2 | Schlenker Spannwerkzeuge GmbH & Co. KG |
25.0%
|
| 3 | Hardinge Inc. |
25.0%
|
| 4 | iSwiss Corporation |
12.5%
|
| 5 | APSX LLC. |
12.5%
|
Derivation Method
The ranking is calculated based on the click share within the guide bushing page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
3 | 100.0% |
KM Precision Co., Ltd.
140+ people viewing
■Features ・The GK type is a fixed bush exclusively used as a guide for insert bushes (CK/DK/EK/FK types). ・The outer diameter (D) of the GK type ...
Sanwa Creation Co., Ltd.
130+ people viewing
Last viewed: 1 day ago
It is used as a guide pin for welding. Long life use has been realized for carbide.
CJV International Co., Ltd.
90+ people viewing
Last viewed: 14 hours ago
■About this product ・Bush body diameter 23 Co., Ltd. Guide bush with carbide on the inner diameter for use with CNC automatic lathes such as Tsuga...
10 models listed
CJV International Co., Ltd.
240+ people viewing
Last viewed: 8 hours ago
■About this product ・Bush body diameter 11 Co., Ltd. Guide bush with carbide on the inner diameter for use with CNC automatic lathes such as Tsuga...
10 models listed
CJV International Co., Ltd.
250+ people viewing
Last viewed: 11 hours ago
■About this product ・Bush body diameter 16 Guide bush with carbide on the inner diameter for use with Nomura P10 type, etc. ・Body diameter 16mm ...
10 models listed
CJV International Co., Ltd.
260+ people viewing
Last viewed: 1 hour ago
■About this product ・Bush body diameter 21 Star Precision Co., Ltd. Guide bush with carbide on the inner diameter for use with CNC automatic lathe...
10 models listed
CJV International Co., Ltd.
200+ people viewing
Last viewed: 1 hour ago
■About this product ・Bush body diameter 18 Citizen Machinery Co., Ltd. Guide bush with carbide on the inner diameter for use with CNC automatic la...
10 models listed
CJV International Co., Ltd.
210+ people viewing
Last viewed: 10 hours ago
■About this product ・Bush body diameter 30 Co., Ltd. Guide bush with carbide on the inner diameter for use with CNC automatic lathes such as Tsuga...
10 models listed
CJV International Co., Ltd.
100+ people viewing
Last viewed: 14 hours ago
■About this product ・Bush body diameter 15 Citizen Machinery Co., Ltd. Guide bush with carbide on the inner diameter for use with CNC automatic la...
10 models listed
CJV International Co., Ltd.
190+ people viewing
Last viewed: 7 hours ago
■About this product ・Bush body diameter 42 Guide bush with carbide on the inner diameter for use with CNC automatic lathes such as Citizen Machine...
10 models listed
CJV International Co., Ltd.
170+ people viewing
Last viewed: 10 hours ago
■About this product ・Bush body diameter 18 Citizen Machinery Co., Ltd. Guide bush with carbide on the inner diameter for use with CNC automatic la...
10 models listed
CJV International Co., Ltd.
210+ people viewing
Last viewed: 8 hours ago
■About this product ・Bush body diameter 22 Guide bush with carbide on the inner diameter for use with Nomura P16 type, etc. ・Body diameter 22mm ...
10 models listed
CJV International Co., Ltd.
100+ people viewing
Last viewed: 13 minutes ago
■About this product ・Bush body diameter 42 Star Precision Co., Ltd. Guide bush with carbide on the inner diameter for use with CNC automatic lathe...
10 models listed
CJV International Co., Ltd.
210+ people viewing
Last viewed: 7 hours ago
■About this product ・Bush body diameter 30 Citizen Machinery Co., Ltd. L16/20, A20, F16/20, B20, M20 Star Precision Co., Ltd. Carbide is used in t...
10 models listed
CJV International Co., Ltd.
140+ people viewing
Last viewed: 9 hours ago
■About this product ・Bush body diameter 34 Citizen Machinery Co., Ltd. Guide bush with carbide on the inner diameter for use with CNC automatic la...
10 models listed
CJV International Co., Ltd.
130+ people viewing
Last viewed: 9 hours ago
■About this product ・Bush body diameter 22 Citizen Machinery Co., Ltd. C16, K16, A16, B16, M16 Star Precision Co., Ltd. Guide bush with carbide on...
10 models listed
