Camshaft Bush For HOWO, HOWO-T7H, HOWO-A7, SINOTRUK WD615 Series Part No.: VG2600010990/VG1560010029
Basic information
JCHHR supply full range SINOTRUK, HOWO, HOWO PART, HOWO SPARE PARTS，STEYR, WEICHAI，WABCO, WABCO VALVES, WABCO BRAKE PART， SHACMAN, SHACMAN F2000 PARTS, SHACMAN F3000 PARTS, SINOTRUCK, SITRAK spare parts，professional service and good price
HOWO spare parts，HOWO dump truck parts，Original HOWO parts，HOWO truck parts，HOWO A7 truck spare parts，Genuine HOWO truck parts，Original HOWO spare parts，HOWO 371 truck spare parts,
HOWO part, HOWO tipper truck, HOWO 336, HOWO 371, HOWO concrete mixer, HOWO 70T，HOWO 70T mining truck parts, HOVA, HOVA 60, HOVA mining truck, HOVA parts, HOVA 60T, STEYR WD615，Original STEYR spare parts, STEYR 91 series, STEYR dump truck, STEYR WD618, WEICHAI，Original WEICHAI parts, Genuine WEICHAI part, WEICHAI spare parts, WEICHAI WD615, WEICHAI WP10, WEICHAI WP12, WD615，WD615 engine parts, WD615.47, WD615.69, WD615 336hp, WD615 371hp, WD618 diesel engine parts, WD618 420hp, D10 engine parts, D12 engine parts.
Specifications
|
PRODUCT NAME |
Camshaft Bush |
OE NO. |
VG2600010990/VG1560010029 |
BRAND NAME |
SINOTRUK Howo |
|
MODEL NUMBER |
VG2600010990/VG1560010029 |
TRUCK MODEL |
WP10, WP12, WP6, WP7, WP5, WP4, WP3, WD615, WD618 |
PLACE OF ORIGIN |
Shandong, China |
|
SIZE |
Standard Size |
CERICATION |
CCC |
APPLICABLE |
Howo |
|
FACTORY |
CNHTC SINOTRUK |
TYPE |
BELT |
MOQ |
1pc |
|
APPLICATION |
ENGINE SYSTEM |
QUALITY |
High-Performance |
MATERUAK |
Rubber |
|
PACKING |
Standard Package |
SHIPPING |
By sea, By air |
PAYMENT |
T/T |
Relevant Knowledge
Characteristics of camshaft vehicles and how to maintain them
The cam bearing is a component in a piston engine. Its function is to control the opening and closing actions of the valve. Although the rotational speed of the camshaft in a four-stroke engine is half that of the crankshaft (in a two-stroke engine, the rotational speed of the camshaft is the same as that of the crankshaft), usually its rotational speed is still very high, and it needs to withstand a large amount of torque. Therefore, in design, the requirements for the strength and support of the camshaft are very high. Its material is generally special cast iron, and occasionally forgings are used. Because the law of valve motion is related to the power and operating characteristics of an engine, camshaft design plays a very important role in the design process of the engine.
1、 Structure of cam bearings
1. Combined structure of thick outer ring needle roller bearing and bolt
2. Sizes available in metric and English series
3. The bolt of the bearing is provided with a lubricating oil passage
4. To facilitate installation, the large end of the bearing is designed with "slotted" and "hexagon hole" wrench assembly methods
5. The outer surface of the outer ring has cylindrical and spherical shapes, which can be selected according to practical applications
6. The full roller type is suitable for applications with high loads and low rotational speeds
7. The eccentric type can easily and accurately adjust the axis position of the bolt when installing the bearing
2、 How to maintain cam bearings
(1) Check the curvature of the camshaft. With the journal at both ends as the fulcrum, the radial runout should not be greater than 0.03 mm, and if it exceeds 0.10 mm, it can be corrected using the cold pressure correction method.
(2) When the lift of the cam is not less than 5% of the specified value, it is allowed not to grind the cam, but the cam base circle and the radial circular runout tolerance of the cam base circle to the camshaft axis should be checked; The overhaul standard is
0.03mm, overhaul is allowed to be no greater than O.05mm.
(3) The cam surface should be polished if it is rough, damaged, or pitted. When the wear of the cam tip exceeds 1.00 mm, the cam tip should be repaired after surfacing welding to restore its original size and shape,
or replace it.
(4) If the gear surface of the oil pump drive gear on the camshaft is rough or worn by more than 0.50 mm, it should be repaired. Individual teeth of the gear are damaged, and it is allowe
Continue to use after grinding off sharp corners. The surface roughness of the eccentric wheel of the driving fuel transfer pump must not exceed O.80 μ m。 When the wear of the eccentric wheel exceeds 2.00 mm, the camshaft should be repaired or replaced by surfacing welding.
(5) Cylindricity tolerance of each camshaft journal: overhaul standard is 5 μ m. Overhaul allowance is not greater than 15 μ m. The usage limit is 25 μ m。
(6) The radial circular run-out tolerance of the shaft journal and the end face circular run-out error of the axial thrust end face of the camshaft timing gear shall not be greater than 35 μ m
