wholesale deep groove ball bearing 6204C4 for Tracker Roller from bearing distributor in china

Integrity promise Connaught, intentions to do everything.

Export manufacturer

Passed Certifications - ISO9001:2015

TN Product tested by National Coal Science Institute and Provincial Quality Inspection Center

A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races.

The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much lower coefficient of friction than if two flat surfaces were sliding against each other.

Ball bearings tend to have lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.

We are a manufacture specialized in producing conveyor roller bearing. bearings also have a clearance value. This provides the bearing room for expansion between the bearing races and will add a small amount of play between the two rings. large clearance C3/C4 usually used in mining machine.

Application

Mining machine, conveyor machine,  Engineering Machinery,  Agricultural Machinery, Construction Machinery, textile, chemical, auto motor, Transportation Vehicles, General industrial Equipment, etc.

Catalog of Deep groove ball bearing

Professional brings quality, detail creates success

XKTE bearing's most fundamental difference is:

The other manufacturers make products considering the price cheap, but we make products considering the service life. Each of the idler roller bearings we produce is fully implemented in the national standard. XKTE bearings exist for their quality and brand. You can deny our price, but you can never find out our products' defects in quality. XKTE conveying machinery bearing, a big brand, is worthy of your trust.

First, the identification of the bearing

Formal manufacturers use laser engraving. The stamps are deep, have significant dents with hand touch, good-looking, with no breakpoints, and are never disappeared. This obviously improves the bearing grade. 

The use of bearing retainer

Bearing retainer selection is very important. Because once too much dust stuck into the bearing, the retainer will be first worn. If the bearing retainer is broken, the bearing will be directly broken. Imported bearings use big rivets to thicken retainers. XKTE bearing is completely in accordance with the process of imported production, so each piece of ours is made to a high quality, and guaranteed to operate for thirty thousand hours.

Selection of nylon retainer

Nylon retainer bearing is often used in the mine. Nylon retainer has better anti-stuck performance and wider range of temperature than iron retainer. In the underground its anti-static performance is also better. To get safety certificate for coal mining products must use nylon retainer KA bearing. The selection of nylon retainer is crucial to KA idler roller bearing, while the material of nylon retainer must be pure and has enough toughness and strength, because the retainer will get very soft if it is made of bad material or mixed material, thus to make no anti-stuck performance within the bearing.

The ring is the main part and the important part of the idler roller bearing. Best idler roller bearing has deep groove ball, and large clearance. But deep groove doesn't mean to dig the channel with a simple way of enlarge the steel ball. The thickness of the bearing is certain, so to get the ball big and the groove deep will shorten service life. Our XKTE bearing uses way of thickening ring to get the standard of deep groove and large clearance, improves the anti-stuck performance, and effectively increases the service life. 

Bearing material and hardness

Good idler roller bearing must be made of bearing steel, named "High Carbon Chromium Bearing Steel (Fully quenched class) GCr15". At present the standard hardness of idler roller bearing is 60-65 degree, while hardness of ring is 61-62 degree, andball is 64-65 degree.

The simple way to identify idler roller bearing is to see if its hardness is over 60 degree, because only bearing steel can get over this degree.

Grease selection of roller bearing

Many customers ignore this most critical point. The thirty-thousands-hours operation is a very long term. This has to be guaranteed by enough quality and quantity grease. And this should also be taken into account of working in different seasons.

Special note: please choose special high temperature grease if working environment is over 120 °C for long time or low temperature grease if it below -20 °C.

Reference:

The importance of seal for the conveyor bearing

It can be classified as self-sealed and external sealed two types. For self-sealed of the conveyor bearing, that is to say, the conveyor bearing is produced with sealed feature itself, such as the conveyor bearing with dust cap or seal ring. This way of seal occupies little space with convenient instalation and removement, and the cost is lower.

For the external seal way, that is to say, set sealed unit with some certain features onto the conveyor bearing. We must consider the following factors when choosing the sealed unit:

1. The types of lubrication grease of the conveyor bearing;

2. The working environment of the conveyor bearing, and the space it occupies;

3. The supporting structure and tolerance of the conveyor bearing;

4. The circle speed of the sealed surface;

5. Working temprature of the conveyor bearing;

6. Cost of manufacturing.

To sum up, in order to achieve better effects of sealing, we often use varieties of seals methods in the engineering design according to the working condition and seal level of the conveyor bearing.

Other Products

Package:

1. Industrial packaging : Single box + outer carton + pallets 

2. Neutral Packing:

Tube package + outer carton + pallets 
Tube package + middle box + outer carton + pallets 

3. As buyer's request

Payment methods:

1) TT, 30% deposit , 70% before shippment.

2) L/C at sight. (high bank charge, not suggest , but acceptable )

3) 100% Western Union in advance. (specially for air shipment or small amount)

Started 2006, We are a manufacture of industrial Bearing in Liaocheng Shandong, concentrates on manufacturing industrial bearing, mainly used in conveying equipment, machinery, textile, chemical, auto motor and so on. Especially bearing for conveyor, which make us become one of well-known enterprise in China. We have 26 production lines, mainly produce deep groove ball bearing, spherical roller bearing, TN Nylon cage bearing and sealed bearing.

All of Our products are made of Chrome Steel GCr15, with grinding groove and superfinishing technology. Supply ability is about 20000 Pieces / per Day. We have our own brand XKTE, and we can also provide OEM service.

FAQ:

I couldn't find a design to fit my application in your catalog. Can you help me design a bearing?

Yes, technical expertise is available to assist you with engineering design for custom products. Available options include, but are not limited to, custom rings, retainers, balls, shields, lubricants, and packaging. We look forward to working with you to satisfy your rotary motion requirements.

What causes bearing noise?

Bearing noise is a function of both the bearing and the way it is used. Some external factors that affect bearing noise include lubricant type, excessive bearing load, and improper installation. Once the abnormal noise occurred, you can contact our engineers, we will help you find the reasons and provide the appropriate solutions.

What is the difference between using a shield or a seal as a ball bearing closure?

Shields or seals are often installed to retain lubricant and to prevent contamination from entering the bearing. While a shield contacts the outer ring and does not come in contact with the inner ring, the seal generally comes in contact with both the inner and outer rings. Torque or drag is lower with a shield than with a seal. Alternately, the seal provides a higher degree of protection from contamination. Shields and seals are available in a variety of materials and configurations.

XKTE developed a serious of sealing methods for different applications. Please contact a XKTE engineer for technical assistance with any special requirements.

Why choose us ?

1. professional commitment to conveying machinery bearing, leading enterprise of conveyor

machinery bearing in China.

2. With background of about 10 years
3. Strict Inspection ,and the best quality price with reasonable price bearings provided .
4. OEM service provided.
5. Delivery products from our factory warehouse , short delivery time.

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