
API 7K Roller Kelly Bushing Used for 171/2" - 49 1/2" Rotary Table
DALON self-lubricating sintered bronze bushing are manufactured of pressed copper and tin powders by sintered technology and impregnated with lubricating oil and high porosity (20-25% in volume). The oil contained in the porosity provides a constant lubrication between bearing and shaft, the system does not need any additional external lubricant, allows this type of sintered bronze bushing to work under hydrodynamic conditions. which resulting in a very low friction coefficient and maintenance-free for general engineering applications.
Product Introduction
We are committed to continue to deepen in the areas of talent training, R&D innovation, and manufacturing to ensure that we provide our customers with more quality and precise filter air stainless steel, laundry microplastics filter, Plastic High Flow Air Muffler and services. Relying on the principle of honesty, after years of continuous development, our company now has first-class processing equipment and a complete after-sales service team. All products are sold all over the world and are well received by customers at home and abroad. We apply new technologies, new techniques and new materials, and implement clean production, economical production and green production. Through open communication and the exchange of information regardless of rank or organizational structure, we engage employees in a timely manner in our work and decision-making processes.


DALON BUSHING INTRODUCTION:
DALON Roller Bushing consist of a sintered bronze body. The main feature of Roller Bushing is their porous design, which contains oil lubricant, which should be the viscosity decrease due to increasing operating temperatures due to friction, the oil leaks out. At higher speed, a lubrication wedge develops, which lowers the bushing's friction.
The powdered metallurgy process is a mass production process that can reduce costs to a level that can be startlingly low when compared to CNC machining. An added benefit of the sintered Roller Bushing are the unique pores that are formed in the structure of the metal. These pores can serve as a reservoir for lubricant, providing a passage to the bearing surface. This unique feature adds the benefit of self-lubrication to many powdered metal bearings.
- High load oil-embedded Sleeve Bearings: This kind of Roller Bushing increased iron content which makes these bearings stronger and more resistant to shock loads than standard oil-embedded bearings. Also they running at lower speeds
- High load Ultra low Friction oil embedded sleeve bearings: This kind of bearings used for frequent starts and stops in high load applications.
- Food Industry oil embedded sleeve bearings: These bearings used oil is suitable for incidental contact with food.
- Multipurpose sleeve bearings: These bronze bearings with lead are strong, wear resistant and excellent at handling shock loads.
- Oil filled SAE841 Bronze bearings: Sintered bronze powder SAE841 without lead impregnated with SAE 30 oil to make this material self—lubricating.
- SAE 660 Bronze bearings: These bearings offering excellent antifriction qualities, SAE660 bronze also offer goods strength and wear resistance. It’s often used for bearings, bushings, and thrust washers.
- High temperature Graphite filled 841 bronze Bushing: These bushing have an excellent alternative to oil filled bushing, graphite filled bronze provides dry lubrication in temperature as high as 370℃
|
System of Measurement |
Inch / Metric |
|
Bearing Type |
Plain |
|
Plain Bearing Type |
Sleeve / Flange / Spherical * with Ring |
|
For Load Direction |
Radial |
|
Material |
SAE841 Bronze(CuSn9010) / SAE660 /A50-B50 |
|
Tolerance Standard |
F7 r7 Js13 |
|
Lubrication Method |
Embedded Lubricated |
|
For Shaft Type |
Round |
|
Shaft Mount Type |
Slip Fit |







roller bushing
At present, our company has a research and development team with excellent technology, high innovation efficiency and rich experience. Once our API 7K Roller Kelly Bushing Used for 171/2" - 49 1/2" Rotary Table are put into the market, they are widely recognized by customers at home and abroad. We ensure excellence in production management and lean production methods. Our company can provide customers with satisfactory quality products and services from beginning to end, so as to be in an invincible position in the fierce competition.
Hot Tags: roller bushing, China, manufacturers, suppliers, factory, wholesale, custom, Bronze Sleeve Bearings, Porous Plastic Filter Plate, Sintered Silencer, bronze air filter, linear bush bearing, brass pneumatic silencer
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