Motor Shaft Parts, Turning and Milling Composite Parts Supplier

Today’s processing is turning milling composite processing parts, it is a very key shaft parts in the motor, it acts as a link between the motor and equipment motor energy conversion, supporting the rotation of parts, transfer torque and determine the relative position of rotating parts to the stator. Therefore, the processing requirement of the accuracy of the shaft parts is extremely high.

Description

Types Of Shafts And Its Applicability

1. According To Whether There Are Steps On The Shafts

The motor shaft can be divided into optical shafts and a stepped shaft two kinds. Optical shafts are made of cold-draw steel, which can reduce the man-hour machining of outer circle shafts and can be applied in miniature motors. Stepped shafts can be easily and reliably installed with many different parts. Therefore, most motors use this kind of shaft.

Stepped shafts, according to their different directions, can be divided into unidirectional stepped shafts( the step diameter decreases step by step from one end of the shaft to the other)and bidirectional stepped shafts(the step diameter decreases step by step from the middle of the shaft to both ends).

2. Classification According To The Manufacturing Process Of The Shaft Blank

The motor shaft can be divided into round steel shafts (made of hot rolled round steel carts), forged shafts (made of forgings) and welding shafts (welded with radial bars).

The turning shaft parts of the hot rolled round steel are the most common shaft parts in the medium and small motor. The shaft parts materials are commonly used 45 high-quality carbon structural steel.

For small power motors, some use Q235 common carbon steel. The blank diameter should be selected according to the maximum diameter of the shaft plus the machining allowance.

Therefore, the amount of cutting is relatively large. When the motor shaft diameter is more than 100mm, the forged shaft should be used. The forging steel has higher mechanical strength, and if forged in the general shape of the stepped shaft, the raw materials and cutting time can be saved.

For large-size motor shafts with high mechanical strength requirements, such as the shafts of turbo-generators, alloy steel forging is often used. The welding shaft uses radial bars instead of the rotor bracket, which can increase the ventilation area of the rotor inner cavity.

However, when welding the rid wire, it is easy to cause the deformation of the shaft and must be annealed after welding. Discontinuous cutting in machine tools is detrimental to the tool. Due to the existence of the weld seam, the fatigue strength of the shaft is significantly reduced, so it is not suitable for high-speed motors.

3. Classification According To The Combination Of Shaft And Iron Core

The shaft type can be divided into the middle knurling shaft, hot sleeve shaft, and middle keyway shaft. The knurling shaft is used for the miniature motor which powers below 10 kw, which can save the working time of machining keyway.

However, when the shaft is pressed into the iron core, it is easy to cause the deformation of the shaft. In the motor operating, some knurling rotors caused the iron core to move axially.

This motor shaft deformation is caused by the tight connection of the shaft and iron core, and the shaft transformation is caused by insufficient interference between them.

The middle of the hot sleeve shaft is neither knurling nor keyway. There is a certain amount of interference between the shaft and the inner hole of the iron core, and the rotating shaft parts are set when the iron core is in a hot state.

As long as the interference is selected appropriately, the combination of the rotor core and the shaft is very reliable. The shaft with a keyway in the middle can be divided into one segment keyway and two-segment keyways. The shaft with one segment keyway is used for small motors. The shaft with two two-segment keyways is applied to the medium and large motor.

The rotor core (or bracket) and the shaft are connected by the keyway. The iron core is fixed in the shaft direction, one end is added with a convex shoulder, and the other end is stuck in the annular keyway on the shaft with an arc key.

The shaft combined with the iron core can transmit larger torque, which is often used in the motor with large power and the motor with frequent positive and negative rotations or the rotor core is not suitable for a hot sleeve.

4. Classification According To Shaft Tensile Shape

This classification method divides the shafts into Cylindrical tensile shafts, Conical tensile shafts, and tensile shafts with half coupling. The tensile processing of cylindrical shafts is simple, and most applied in the motor. Round dimension shaft auxiliary tensile shaft includes the fastening bolt, so the processing is large.

However, the equipped transmission wheel of the Conical tensile shaft is convenient for loading and unloading and is mostly used for special motors. Shafts with semi-couplings are mainly used in hydro-generators and large DC devices.

5. Classification According To The Shape Of The Shaft Core

This classification method divides the shafts into a solid shape, one end with a deep hole shaft, and a shaft with a central through hole. Solid shafts are most commonly used as motor shaft parts.

Shafts with deep holes at one end are mainly used in wound asynchronous motors to connect the lead wire on the rotor with the collector ring outside the end cover through the hole.

Shafts with central through-holes are used mainly for large motors: in twin-water internal cooling turbogenerators, the central through-holes are also used as part of the cooling waterway.

6. Classification According To Shaft’s Permeability

This classification method divides the shafts into magnetic shafts and non-magnetic shafts. Magnetic shafts are mainly used in turbogenerators. Some other motor shafts usually do not require magnetic conductivity.

7. Other Classification Methods

According to the number of shaft tensiles, it can be divided into single-shaft tensile shaft and double-shaft tensile shaft; according to the different number of bearings, it can be divided into single-bearing shaft, double-bearing shaft and multi-bearing shaft.

YIJIN Hardware is an excellent turning and milling composite parts supplier. We are committed to providing customers with the most perfect CNC machining products and excellent CNC manufacturing services.

If you are interested in our products, you are welcome to send your requirements with your drawings to us via email. We are very glad to give you the most sincere service and the most favorable quotation.

CLICK TO GET A QUOTE

Custom CNC Machining Parts and CNC Milling Machine Parts

About us

Q: Who are you?

A: Yijin Hardware Co., Ltd. is a reliable stainless steel precision milling machine parts manufacturer.

Yijin Hardware Co., Ltd. specializes in precision CNC machining and provides OEM ODM services, including CNC machining/milling/turning parts, casting parts, and metal stamping parts, for various industries such as aviation, electronics, furniture, health care, automobile, communication, automotive, racing cars, and new energy as well as infrastructure enterprises (such as high-speed trains and bridges).

Material: aluminum, stainless steel, brass, copper, carbon steel, titanium alloy, iron, carbon fiber, plastic, ceramic, bamboo, wood, acrylic, etc.

Processing: CNC lathe, CNC milling and turning, grinding, bending, stamping, casting, etc.

Accuracy: The accuracy requirement is ±0.002 mm, and the finishing requirement is Ra1.0 μm.

Surface treatment: oxidation, hard anodizing, zinc-plating, nickel-plating, chrome-plating, silver-plating, gold-plating, etc.

Transport Package: carton, plastic bag, blister box, wooden case, etc.

Payment terms: L/C, T/T, Paypal, Western Union

Express: DHL/UPS

Quality Inspection

High-quality control: 100% QC full inspection before shipment

(Scratch-proof) packing and shipping

An inspection report can be provided as an attachment.

Contact: Email: info@yijinsolution.com Tel: 0755-23502273 Mobile: +86 18926595104

Address: No. 105, Building #11, Houdequn Logistics Park, Shajing Street, Baoan District, Shenzhen, China

Website: https://yijinsolution.com/

Company Profile: Yijin Hardware Co., Ltd. specializes in precision machining and provides OEM ODM services for various industries including aviation, electronics, furniture, health care, automotive, communication, racing cars, new energy, and infrastructure construction (such as high-speed trains and bridges).

Located in Shenzhen, a young city in China, Yijin Hardware combines quality workmanship and superior knowledge with reasonable prices to guarantee on-budget products and on-time delivery.

Based on its exceptional standards, Yijin Hardware has a lot of experience in providing cost-effective professional services for both private companies and governmental agencies for 20 years, with a real focus on customer satisfaction.

We ensure a job is done on time and on budget with proven results, meeting our exceptional standards for cost control.

We provide professional services for both private and governmental customers, with 20 years of experience and a real focus on customer satisfaction.

We combine quality workmanship and superior knowledge with reasonable prices.

Please enable JavaScript in your browser to complete this form.
Click or drag files to this area to upload. You can upload up to 15 files.

Please attach your 2D CAD drawings and 3D CAD models in any format including STEP, IGES, DWG, PDF, STL, etc. If you have multiple files, compress them into a ZIP or RAR. Alternatively, send your RFQ by email to info@yijinsolution.com.

3D Drawing Formats: .step/.stp, .dwg, .m3d, .x_t, .sldprt, .stl, .CATPart, .CATProduct, .iges/.igs
2D Drawing Formats: .dwg, .cdw, .SLDDRW, .scr

Compressed Formats: .zip, .rar, .7z

Image Formats: .pdf, .jpg/.jpeg, .gif, .png, .webp, .tif/.tiff

Video Format: .mp4

Office Formats: .txt, .docx, .xlsx, .ppt, .ods