Detroit S60 bearing 8929710 91.5mm OE quality
This products is used for Detroit S60 engine models and its diameter is 139 mm. Its OE number is 8929710 8929711. This bearing is one of our best sales for the year.
The bearings are all for OE quality and have quality test.
We can provide piston, piston ring set, liner if you need. We can provide with Wellfar package and neutral package. If you can reach MOQ, our factory can provide oem odm service and go on producing plan.
Product details：
OEM Number: | 8929710 8929711 |
Place Of Origin | Guangdong,China(Mainland) |
Engine Model: | Detroit S60 |
Size | STD/Oversize |
DIAMETER | 91.5 mm |
Est. Time(days)： | 15-90days |
Customization: | logo(Min.Order:1000 Pieces) |
packaging(Min. Order: 1000 Pieces) | |
Shipping: | Express / Sea freight / Land freight / Air freight |
BRAND | WELLFAR |
PACKING | WELLFAR/NEUTRAL/CUSTOMIZED |
Certification | ISO9001 2018 |
Payment Terms | TT / Western Union / Cash |
Trade Terms | FOB/EXW |
Sample Order | small quantity is available if in stock |
When the engine is horizontally arranged, the gyroscopic effect of crankshaft rotation will prevent the motorcycle from turning sideways. The heavier the crankshaft, the greater the resistance. Due to the short crankshaft of the single cylinder engine, the gyroscopic effect is relatively much lower, so the left and right roll is light. The driver will feel that the steering handle is very light.
Because the single cylinder engine has the above characteristics, most of the off-road motorcycles above 250CC use single cylinder engines. In addition, most of the super sports motorcycles also use single cylinder engines. Among ordinary motorcycles, most small motorcycles below 125CC use single cylinder engines.
Single cylinder engine has simple structure, low maintenance cost, light weight, less fuel consumption and smaller volume than multi cylinder engine, so it is often seen on some off-road vehicles below 250cc. It feels light to ride. However, the single cylinder engine is unstable and its speed fluctuates greatly. In order to reduce costs, some manufacturers often install single cylinder high-speed engines on motorcycles, which also damages the life of motorcycles.
2. Improper material coordination of piston ring, piston and cylinder liner
There are many units producing auto parts in our country, the quality of parts is unstable, the expansion coefficients of pistons of various manufacturers are different, and the surface hardness of cylinder liners and piston rings is also different. All these may cause cylinder scuffing, such as when replacing piston rings. , to leave enough end clearance according to the standard; chrome-plated cylinder liners should not be equipped with chrome-plated piston rings, so as not to cause hard pulling of the cylinder.
3. Assembly and process issues
1) The assembly of the piston pin is too tight, and it is easy to cause cylinder scuffing at both ends of the axial direction;
2) The piston pin retaining ring comes out, which can cause extremely serious cylinder scuffing;
3) Improper handling of the piston ring cutout, the ring cutout opening is too large, and the edges and corners are prominent when filing;
4) The end face clearance of the piston ring is large;
5) The speed rises too fast when the engine is cold started, or the load is added too fast.
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