Zhejiang Boxing Industry and Trade Co.,Ltd

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Company name:Zhejiang Boxing Industry and Trade Co.,Ltd
Address:No. 1188, Meihe Rd, Jinhua City, Zhejiang Province, 321017, China
Contact:Eric Ge
Website: www.bo-xingcamshaft.com

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A Common Fault Of The Camshaft

Common failure of the camshaft include abnormal fracture, wear, sound and sound before and fracture occurs often appear the symptom of abnormal wear. The camshaft

(1) the camshaft almost, at the end of the engine lubrication system, so the lubrication condition is not optimistic. If the oil pump, oil pressure appear because time is too long wait for a reason, or oil duct blockage caused by lubricant cannot reach the camshaft, or bearing cap fastening bolt tightening torque is too large to lubricating oil into the camshaft clearance, will cause abnormal wear of camshaft.

(2) the camshaft of abnormal wear can cause between the CAM shaft and bearing clearance increases, the camshaft happens when axial displacement, so as to produce the sound. Abnormal wear and tear can also lead to drive between the CAM and the hydraulic tappet clearance increases, CAM combined with hydraulic tappet collision happens, to produce sound.

(3) the camshaft sometimes appear the serious problems such as fracture, common cause with hydraulic tappet rupture or serious wear and poor lubrication, poor quality of the camshaft and camshaft timing gear fracture.

(4) in some cases, the failure of the camshaft is human causes, especially when repairing the engine camshaft for disassembling without properly. Strength such as removing the camshaft bearing cover with a hammer percussion or with a screwdriver to pry pressure, or install the bearing cap to the wrong location cause bearing cover and bearing seat do not match, or bearing cap fastening bolt tightening torque is too big, etc. When install the bearing cover, should pay attention to the direction of the arrow on the surface of the bearing cover and position number tags, and in strict accordance with the provisions of the bolt torque using a torque wrench to tighten the bearing cover.

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Address:No,1188 , Meihe Rd, Jinhua City, Zhejiang Province , 321017,China





Company Info

ZHEJIANG BO XING INDUSTRY AND TRADE CO., LTD, proformly called “ZHEJIANG SIXING MACHINING CO., LTD”was founded in 1995, is located in Jinhua city, Zhejiang Province.,There are 400 kilometers from Shanghai port , and about 250 kilometers from Ningbo port in distance.
. Our company covers an area about 35000 square meters with total assets about RMB 150 million Yuan, the building area is about 27000 square meters. There are 550 employees, including more than 60 people who are senior and middle level professional persons.
The Company specialized in producing camshafts and balance shafts of car engines, motorcycle engines, general-use gasoline engines, diesel engine. the annual productivity is about 4.5 million pieces. it has a regular organization, which consists of nine functional departments,, a foundry, three machine plants in the company .
Our company has 450 sets of various types of production equipment, such as CNC cam grinding machines,, CNC lathes, CNC hobbing machines, CNC gear shaving machines, CNC cylindrical grinders, CNC milling machines,, automatic washing machine, etc. The equipment number centralized ratio is over 75%, in 2012s, we company purchese one set of auto cam grinder from Toyoda of Japan whose number is GC20M-63 .
It has enough capability for self-supporting the blank of camshafts and cast pieces. The company's foundry is equipped with a vertical-type non-pressure molding line box shot (ZZ416A) and has an annual output

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