Detailed description of the heating device method for rolling bearings

Source: China Bearing Network Time: 2018-03-01

/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';

The heating method can be used to make the bearing hole swell; this device saves labor and time; it also prevents damage caused by excessive force.
At this time, the demand is to control the heating temperature; usually the bearing is heated to 80 Â° C; up to 100 Â° C. It is enough. Exceeding 120 Â°C will lead to the appearance of bearing tempering; resulting in a decrease in the hardness and accuracy of the ferrule. Commonly used heating methods are:
1 bulb heating method uses 50W bulb to heat the bearing; it can ensure the heating temperature is about 100 Â°C; the smaller bearing can be placed directly on the bulb; the larger bearing can be placed in the cone of the bulb; the cone can prevent the bulb heat Loss; and make the heating even. The cone cover can be adjusted up and down; in a certain scale, it can be used to heat the bearings of different sizes. If you choose a far-infrared bulb; pay attention to the direction of the bulb should be downward; avoid infrared rays is not good for human eyes This type of bulb can save energy. The bulb heating method is suitable for occasions where the number is small and not often needed to heat the bearing; the ordinary bulb can also be used for lighting; in addition, no other equipment is required.
2 induction heating method using induction heater can quickly, firmly and cleanly heat the bearing to the required temperature; this is uniquely suitable for the inner ring tight cooperation; because only the inner ring is heated; and the outer ring is rarely heated This can be easily mounted on the shaft; it is also easy to fit into the seat hole.
3 oil tank heating method This is a widely used traditional heating method; the oil tank is provided with a metal mesh at 50~70mm from the bottom; the bearing is placed on the net; the large bearing should be hung with a hook. The bearing should not be placed directly at the bottom of the groove; The bottom part of the bearing part is heated too high; or the dirt deposited at the bottom of the tank enters the bearing. The key points of the oil tank heating method are as follows; mineral oil with no corrosive thermal stability should be used; the best is transformer oil; oil and container are Should be kept clean. The capacity of the oil tank should be determined by the size of the heated bearing and the amount of oil; if it is too containerized, the è¯¹ é‡ é‡ ç° ç° ç° æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢ æ¹ƒèƒ«å²¢
4 electric furnace heating method to place the bearing in the closed active temperature control electric furnace heating; uniform heating; precise temperature control; fast heating; suitable for a batch of heating many bearings.
5 electric heating plate heating method to place the bearing on a hot plate with a temperature of 100 Â° C for a few minutes; this method is the most concise; such as flipping a few times to make the bearing evenly heated; and the power is also high; large-size bearings can use this method.
The key to the heating device method (1) The bearing is also shortened in the width direction when cooling; therefore, the device must apply a certain pressure to press the inner ring to the shoulder; and after cooling, test with a very thin feeler gauge; Whether there is a gap between the end face of the inner ring and the shoulder. Totally; the demand is skilled, agile and accurate.
(2) The heating temperature should be properly controlled; if the temperature is too high, the bearing will be damaged; if the temperature is too low, the ferrule will be inflated in a large amount; the effect is not obvious. The inner diameter of the inner ring obtained by the heating temperature of 80~100 Â°C is large; This is about bearings with normal interference; it is already enough.
(3) As soon as the required heating temperature is reached; it is necessary to carry out the device as soon as possible; avoiding the cooling and the device is difficult.

Recommend to friends comments close window

Bearing related knowledge

Features of oil-free bearing (JDB) for bearing ring raceway grinding. Introduction of ultrasonic cleaning machine in bearing occupation. Rolling bearing according to the number of rows of rolling elements. Bearing terms in English and Chinese-3

This article links to http://
Please indicate the bearing network http://

Previous: SKF bearing oscillating type and general type of features analysis of the following: locomotive rolling bearing problems and diagnosis

Power Tool Combo Kits

Newstar Hardware Co., Ltd is committed to different kinds of tools kit, Hand Tool kit, power Tool Kit , garden tool kit, for various using condition in life. Power tool combo kits is one of our hot selling items. Power tools combine with Hand Tools, power tools combine with Garden Tools, or other kinds of tools per your needs. Power tools quality good, battery quality ensure. Choose high quality power tools bundles, choose us.

Power Tool Combo Kits,Power Tool Combo Sets,Power Tool Bundles,Power Tool Combo

SUZHOU NEWSTAR HARDWARE CO.,LTD. , https://www.newstarhardware.com