Drop forged motorcycle rocker arm for CB150
| Product name | Drop forged motorcycle rocker arm for CB150 |
| Company type | manufacturer |
| Certification | TS16949 |
| Process | Drop forged |
| Material | steel |
| MOQ | 1000PCS |
| Lead time | 20-30 working days for mould&sample,and another 25-35 working days for motorcyle rocker arm mass production |
| Working principle | A rocker arm (in the context of an internal combustion engine of automotive, marine, motorcycle and reciprocating aviation types) is an oscillating lever that conveys radial movement from the cam lobe into linear movement at the poppet valve to open it. One end is raised and lowered by a rotating lobe of the camshaft (either directly or via a tappet (lifter) and pushrod) while the other end acts on the valve stem. When the camshaft lobe raises the outside of the arm, the inside presses down on the valve stem, opening the valve. When the outside of the arm is permitted to return due to the camshafts rotation, the inside rises, allowing the valve spring to close the valve. |
Ningbo Zhongan Forging Co.,ltd started in 1998,is a family run business specializing in the manufacturing of motorcyle rocker arms.Zhongan forging prides itself in offering quality,affordable China made products that are built to last. Zhongan Forge's capabilities include moulding,forging,CNC machining,heat treatment, surface treatment,ect
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Our service for forged rocker arm is not just forging the parts you need,we could also supply other services like:Drawing design according to your sample,mould design,machining,heat treatment,surface treatment,package,delivery,ect.
1.Geometry of rocker arm?
Even the design aspects of the rocker arm's geometry has been studied and changed to maximize the cam information exchange to the valve which the rocker arm imposes, as set forth by the Miller US Patent, #4,365,785, issued to James Miller on December 28, 1982, often referred to as the MID-LIFT Patent. Previously, the specific pivot points with rocker arm design was based on older and less efficient theories of over-arcing motion which increased wear on valve tips, valve guides and other valve train components, besides diluting the effective cam lobe information as it was transferred through the rocker arm's motion to the valve. Jim Miller's MID-LIFT Patent set a new standard of rocker arm geometrical precision which defined and duplicated each engine's specific push-rod to valve attack angles, then designing the rocker's pivot points so that an exact perpendicular relationship on both sides of the rocker arm was attained: with the valve and the pushrod, when the valve was at its "mid-lift" point of motion.
2.What are the advantages if we become your supplier?
We are the end manufacture of motorcycle rocker arm,we could offer you high quality parts with competitive price and shortest delivery time.
3.Could Zhongan Forging do machining as well?
Yes,we have our own machining workshop.We could do machining as requested in your drawing.
4.What materials can be done in your factory?
Stainless steel,carbon steel,alloy steel,ect.
5.What is the payment terms of Ningbo Zhongan Forging Co.,ltd?
Our payment terms for rocker arm is:100% tooling cost prepaid with order,30% payment of production paid after sample is approved,balance 70% paid on your receipt of faxed B/L.
Ningbo is the second largest port city in China.So it is very convenient for us to deliver steel forgings to overseas market,no matter it is by sea or by air.
If you have such inquiries for rocker arm at this moments,pls contact us right now.We will send you our competitive prices for reference first.Below is my detailed contacting information: