CNC turning technics precision cantilever Shaft Step type with external thread at both ends type for Motor fittings

Company Introduction:
Founded in 2009, JESENTECH is a professional manufacturer of precision non-standard fasteners. It is headquartered in Shenzhen and has a branch office in Hong Kong. Kunshan, Jiangsu Province has established its second largest production base. It is currently China's high-precision, high-quality non- The standard fasteners custom service leader. We have a first-class technical processing team, sophisticated testing equipment, and a comprehensive IATF16949:2016, ISO9001:2015, ISO14001:2015, OHSAS18001 quality management system and intimate after-sales service team. JST is promoted to China and to the world. With a positive attitude and the advantages of the industry, we will continue to strengthen the development of China's fastener industry products, and constantly create and meet customer needs. Strive to become a manufacturing company with high quality, low cost and fast delivery in the precision parts industry.

JESENTECH

is a fastener manufacturer that produces and processes non-standard shaped shafts. The cantilever pins produced by our company are mainly used in industrial automation equipment;The cantilever pins produced by our company are produced according to the drawings or samples according to the needs of customers;
Really realize the material on-demand customization, product shape design is customized according to customer needs, surface treatment is customized according to customer needs;Customers only need to provide professional tolerance design drawings or samples, we can precisely process the products according to all the customer's dimensional tolerances and precision;

Product warranty:
Our factory has advanced processing equipment and stable performance. It is imported CNC CNC, automatic lathe, capable of turning and milling composite molding. The maximum processing outer diameter is 150mm, the minimum processing outer diameter is 0.2mm, the longest processing is 2500mm, and the diameter tolerance can guarantee +/- 0.003mm, length tolerance +/-0.01mm;

The company is equipped with advanced 2.5-meter, measuring instrument, Rockwell hardness tester, projector, height gauge, concentricity tester, salt spray tester and other advanced inspection equipment, in accordance with the perfect IATF16949:2016, ISO9001:2015, ISO14001 :2015, OHSAS18001 quality management system management quality, to ensure that products meet technical requirements.

Application of cantilever Pin in Industrial Automation parts:
In the application of machine tool spindles, the cantilever pin external thread mounting and external thread type, double row precision cylindrical roller bearings are also used, usually in combination with precision angular contact ball bearings or thrust bearings. These bearings can withstand large radial loads and allow for higher rotational speeds. The two rows of rollers in the bearing are arranged in an intersecting manner. The wave frequency is greatly increased compared with the single row bearing, and the amplitude is reduced by 60%-70%. These bearings usually come in two forms: NN30, NN30K two series bearing inner ring with ribs, outer ring can be separated;

NNU49, NNU49K two series bearing outer ring with ribs, inner ring can be separated, of which NN30K and NNU49K series The inner ring is a tapered hole (taper 1:12), which cooperates with the tapered journal of the main shaft. The inner ring is axially moved to make the inner ring expand. The cantilever pin is embedded in the external thread to install the external thread type, so that the bearing clearance can be Reduce or even pre-tighten the bearing (negative clearance state).

Commonly used material:

40Cr is a commonly used material for shaft parts, it is cheap after quenching and tempering (or normalizing), can get better cutting performance, and can get higher strength and toughness and other comprehensive mechanical properties, after quenching surface hardness up to 45 ~ 52HRC.

40Cr and other alloy structural steel is suitable for shaft parts with medium accuracy and high rotating speed. After quenching and tempering, this kind of steel has better comprehensive mechanical properties.

40Cr steel is one of the most widely used steels in the machinery industry.After tempering and tempering treatment, it has good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity.Good steel hardenability, when water quench hardening to Ф 28 ~ 60 mm, when oil quenching hardening to Ф 15 ~ 40 mm.This steel is suitable for cyanidation and high frequency quenching in addition to quenching and tempering.When the hardness is HB174 ~ 229, the relative machinability is 60%.