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Model No.: 1402 ball screw
Brand: ALM
Status: New
Warranty Period: 1.5 Years
Applicable Industry: Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food &Amp; Beverage Factory, Farms, Home Use, Food Shop, Printing Shops, Construction Works, Energy &Amp; Mining, Food &Amp; Beverage Shops
Out-of-warranty Service: Video Technical Support, Online Support, Spare Parts, Field Maintenance And Repair Service
Where To Provide Local Services (in Which Countries Are There Overseas Service Outlets): Canada, Turkey, United Kingdom, United States, Italy, France, Germany, Indonesia, India, Mexico, Australia
Showroom Location (in Which Countries Are There Sample Rooms Overseas): Turkey, United Kingdom, United States, Indonesia, India, South Korea
Video Factory Inspection: Provided
Mechanical Test Report: Provided
Marketing Type: Hot Product 2019
Core Component Warranty Period: 2 Years
Core Components: Bearing, Gearbox, Motor, Gear, Pump
Processing Technology: Milled Thread
Place Of Origin: China
Accuracy Grade: C1 C3 C5 high precision
Axial Play: zero axial play
Preload: P1 P2 P3
Packaging: In wooden cases or cartons
Productivity: 10000 sets per month
Transportation: Ocean,Land,Air,Express
Place of Origin: China
Supply Ability: 10000 sets/month
Certificate: ISO9001:2015 JISB1192
Port: Shanghai
Payment Type: T/T,D/P,Paypal,Western Union,Money Gram,alibaba
Incoterm: FOB,DDU,CFR,CIF,EXW,FCA,CPT,DDP
The History of the Ball Screw
According to a literature in the 19th century, there was an attempt to replace sliding friction with rolling friction by means of balls inserted between a male screw and a nut, namely this is a concept of the ball screw, in order to rotate a screw of driving mechanism more lightly (illustrated below).Because of technological level of those days, however, they could not practically apply the idea.
The Saginaw Division of General Motors in the United States used Ball Screws practically for the first time in automobile steering gears in the 1940’s. Since then design and production technology for ball screws have made great advancement.
In Japan, as mechanical industries advanced, the call for ball screws grew louder. Responding to these voices, NSK took the initiative to develop ball screws using its expertise in ball-bearing design and manufacturing, and the company eventually succeeded in launching the first ball screw type automobile steering gears in Japan in 1958.
Although the main application target for the precision ball screws was NC machine tools, the first job for which it was used was to convert acme thread Lead Screws of the X, Y and Z axes of a milling machine called K5, manufactured by Makino Milling Machine Co. Ltd., into ball screws.
This K5 model was the best-selling brand in the industry back then, and over fifty machines were produced monthly. The NSK precision ball screws were used for the first time in them.
Thereafter, due to ever-progressing improvement in design techniques and manufacturing technologies, as well as needs for streamlining production in general, the high performance characteristics of ball screws soon made them one of the vital elements of NC machines,laborsaving machinery, and so on.
Why do the ball screws require ball recirculation parts?
In case of a ball bearing, its steel balls roll only in a circular groove, thus there is no way for steel balls to go out of it. However, since the groove in the ball screw is helical, its steel balls roll along the helical groove, and, then, they may go out of the ball nut unless they are arrested at a certain spot.
By providing steel balls in between the screw shaft and the nut (grooves), and the balls roll on the grooves (i.e.,Change to rolling contact from sliding contact to reduce friction. Refer to the illustration below.).
Product Categories : Ball Screws > Bi-directional Ball Screw
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