Sleeper Dowels
US $0.90
contact for power plants
- Category: Railway Parts & Accessories >>>
- Supplier: Changsha Aobo Carbon Co. Ltd.
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Product Overview
Description
detail information about contact strips :
Technical parameter
Grade | Resistivity uΩ·m | Density g/cm² | Transverse Strength N/mm | Shore hardness |
CY3TA | 38 | 1.7 | 30 | 85 |
CY280 | 38 | 1.6 | 35 | 75 |
MY7A | 10 | 2.4 | 75 | 90 |
MY7A2 | 5 | 2.5 | 85 | 95 |
MY7D | 5 | 2.7 | 90 | 92 |
MY258 | 3 | 2.9 | 90 | 92 |
MY258A2 | <2 | 2.7 | 75 | 85 |
MY258P | <1 | 3.2 | 85 | 80 |
MY259 | 3 | 2.8 | 90 | 90 |
MY131 | 8 | 2.2 | 80 | 105 |
Product Description
2. The high mechanical and electrical characteristics of our impregnated grade P6252 allow mounting withour any protection or end fitting .Also, in many cases, it is possible to aboid maching of bevels at the ends of the shoe.
For shoes made of plain carbon materials, it is better to mount with bronze end-fittings, which will protect the carbon by absorbing impacts and carry part of the current.
A special attention is given to the soldering of the carbon into its sheath, and guarantees a perfect electrical and mechanical link.
In each case, the actual wear of the shoe will depend on material and condition of the third rail (steel, stainless-steel, )and the use, at the same time ,of castiron or steel which will damage the patina and rail.
Detailed Images
FAQ
Technical hitches | Causation | Repair |
Brush spark | 1.Commutator deformed | 1.Loosen the fastening screws to re-adjust |
2. Copper barbed or sharp edges | 2. Re-chamfer | |
3. Brush pressure is too small | 3. Adjust or replace the spring pressure | |
Brush overheating | 1. Brush too much pressure | 1. Adjust or replace the spring pressure |
2. Single Brush pressure imbalance | 2. Replacing different carbon brushes | |
Wear fast | 1. Commutator was dirty | 1. Clean commutator |
2. Copper barbed or sharp edges obvious | 2. Re-chamfer | |
3. Load is too small to form an oxide film | 3. Improve load or minus number of brushes | |
4.Work environment is too dry or too wet | 4.Improve the working environment or replacement brush card |
Packaging
Firstly --- Lined with bubble film
Then --- Outer use five layers of corrugated board
Finally --- Product is heavy or customer demand, will use wooden case
Buying Guides
1. when order brushes product, end users should specify the order drawing number, type and size the required quantity and delivery time requirements
2. Special specifications and structure, please provide drawings or samples
3. Our company has kept the map, when ordering, please indicate the figure number
4. We list the commonly used various sizes and models of carbon brushes , if there are special requirements, please note so that specify them in contract
5. How to select brushes
-according to the motor feature to choose grade of carbon brush
-according to box size of brush holder to confirm size of carbon brush
-according to brush holder structural to know type of carbon brush
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