conveyor parts: Conveyor Roller

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2016年1月31日星期日

What is the required dimension for conveyor roller selection

1. We can provide standard roller suitable for belt widths of between 400mm and 2400mm.

1) Belt width: 400mm, 500mm, 650mm, 800mm, 1000mm, 1200mm, 1400mm, 1600mm, 1800mm, 2000mm, 2200mm, 2400mm

2) Roller diameter: 63.5mm, 76mm, 89mm, 108mm, 133mm, 159mm, 194mm, 219mm

3) Roller length: 200mm – 2500mm

2. Could you provide the following specification for conveyor roller selection?

1) Shaft Length A __________mm

2) Gauge Length B __________mm

3) Face Length C __________mm

4) Roller Diameter D __________mm

5) Across Flats E __________mm

6) Wall Thickness F __________mm

7) Shaft Diameter G __________mm

2015年12月23日星期三

What Factors Lead to Inflexible Rotation of Conveyor Roller

In our daily use of conveyor roller, inflexible rotation phenomenon may occur during the operation, what factors lead to inflexible rotation of conveyor roller? Let’s see the following two parts:

The manufacturing quality of belt conveyor idlers

The manufacturing problems of belt conveyor mainly are bearing lacks of rigidity, difficult to ensure the roller assembly accuracy , which restricts the operation flexibility.

Sealing, lubrication and maintenance

Because of belt conveyor working environment is relatively poor, generally, operation site is full of dust, and the bearing sealing form has big influence on roller operation flexibility. If sealing poor, dirt can easily enter into the bearing inner which causes inflexible rotation; in addition, if bearing grease adopts common calcium base grease ,it is easy to change color and become dry, can't reach a very good lubrication effect.

2015年12月22日星期二

How to solve inflexible rotation problem of conveyor roller

To ensure accuracy during conveyor roller manufacturing process

Such as the inner hole precision of punch bearing housing should reach grade 3, dimensional tolerance,coaxial degree and ovality of the pipe body two ends must conform to the national standard,can not exceed the tolerance.

Sealing and lubrication

in addition to ensure the quality of manufacture, also require better lubrication materials, such as lithium base grease which can improve the bearing lubrication performance, this is very necessary to prolong the service life of roller.

Bearing seat adopts labyrinth seal structure of centripetal ball bearing supporting and plastic sealing ring, which can guarantee reasonable bearing stress of roller during operation,but also ensure good dust prevention effect, small resistance, and convenient installation and easy maintenance, it can effectively reduce the conveyor operation cost at the same time.

2015年9月7日星期一

8 Factors will Affects the Quality of Conveyor Roller

Actually, conveyor roller has a great significance for belt conveyor. It is important for customers to choose suitable conveyor rollers. Here, PK Machinery will analysis 8 factors that can affect the quality of conveyor rollers.

Conveyor roller is widely used in various types of industries, however, most customers lack of the knowledge for choosing the suitable conveyor roller. Let’s show you what are the factors that affecting the quality of roller.

1. Roller radial runout (the index directly affects the stability of the conveying materials)

2. Flexibility (the index affects the life-span of the roller and belt, as well as the driving power of the machine)

3. Dust resistance performance(the index affects the life-span of roller)

4. Shock resistance performance (the index affects the life-span of roller)

5. Rotational resistance (the index affects the life-span of tape)

6. Axial carrying capacity (the index affects the life-span of roller)

7. Water resistance performance(the index affects the life-span of roller)

8. Axial string momentum (the index affects the life-span of roller directly)

2015年8月29日星期六

Do You Know What are the Main Technical Requirements of Conveyor Roller

How much do you know what are the main technical requirements of conveyor roller? Today, PK Machinery will introduce you this kind of knowledge from 5 aspects.

1.Conveyor roller cylindrical radial circular runout

In order to guarantee the belt conveyor run smoothly, it is necessary to make strict specifications on roller radial circular runout, otherwise it will cause conveyor belt vibration, increase conveyor belt running resistance and consume more power due to its higher value. Therefore, this is an important technology index for roller.

2.Rotational resistance after installation of conveyor roller

Excessive roller rotational resistance will cause conveyor roller damage in advance and conveyor belt wears rapidly, it will also cause the increasing of the driving power, so this is another important technical index for roller.

3.Waterproof, dustproof, sealing performance of conveyor roller

The service life of roller depends on its sealing performance to a great extent, good seal performance can prevent dirt and moisture entering into roller bearing roller way effectively. In order to improve its service life, we must develop better way of waterproof, dustproof, sealing performance.

4.Roller axial carrying capacity

Generally, roller bears the roll force for only one direction, therefore, we must ensure normal operation under axial load of roller.

5. Service life of conveyor roller

This is a comprehensive index which involving the scientific rationality of structure design, the manufacturing quality of roller, bearing selection, the choice of grease and grease filling and sealing effect etc.