Deep groove ball bearing is one of the most common types of rolling bearings. The basic type of deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls and a set of cage. Deep groove ball bearing type has single row and double row two, single row deep groove ball bearing type code for 6, double row deep groove ball bearing code for 4. Its structure is simple, easy to use, is the most common production, the most widely used type of bearings. Deep groove ball bearings mainly bear radial load, can also bear radial load and axial load at the same time. When it only bear radial load, the contact angle is zero. When the deep groove ball bearing has a large radial clearance, with angular contact bearing performance, can withstand a large axial load , deep groove ball bearing friction coefficient is very small, the limit speed is also very high. Deep groove ball bearing structure is simple, compared with other types of easy to achieve high manufacturing accuracy, so it is easy to series mass production, manufacturing costs are also low, the use of extremely common. Deep groove ball bearings in addition to the basic type, there are various variants of structure, such as: deep groove ball bearings with dust cover, deep groove ball bearings with rubber seals, deep groove ball bearings with stop groove, deep groove ball bearings with ball loading gap of large load capacity, double row deep groove ball bearings deep groove ball bearings can be used in gearboxes, instruments, motors, household appliances, internal combustion engines, traffic vehicles, agricultural machinery, construction machinery, engineering machinery The deep groove ball bearings are mainly used in machinery to support and reduce friction, so the precision and noise of deep groove ball bearings are directly related to the use and life of machinery.
Installation method
Deep groove ball bearing installation method one: press into the fit: bearing inner ring and shaft make tight fit, outer ring and bearing seat hole is more loose fit, available press will
Bearing
First press fit the bearing on the shaft, then install the shaft together with the bearing into the bearing housing hole, press fit in the
Bearing
The outer ring of the bearing is tightly matched with the housing hole, and the inner ring is loosely matched with the shaft, the bearing can be pressed into the housing hole first. If the bearing collar and shaft and seat hole are tight fit, installation of the inner and outer ring to be pressed into the shaft and seat hole at the same time, the structure of the assembly sleeve should be able to tighten the bearing inner ring and outer ring end face.
Deep groove ball bearing installation method two: heating with: by heating the bearing or Bearing seat
By heating the bearing or housing, the use of thermal expansion will be a tight fit into a loose fit installation method. Is a common and labor-saving installation method. This method is suitable for the installation of bearings with a large interference amount. Before hot fitting, put the
bearing or separable bearing collar into the oil tank and heat it evenly at 80-100℃, then take it out of the oil and install it on the shaft as soon as possible. When the outer ring of the bearing is tightly fitted with the light metal bearing seat, use the heating method.
Bearing seat of the hot installation method, can avoid the mating surface by abrasion. When using the oil tank to heat the bearing, there should be a net fence at a certain distance from the bottom of the box, or use a hook to hang the bearing, the bearing cannot be put on the bottom of the box to prevent sinking impurities into the bearing or uneven heating, the oil tank must have a thermometer, strict control of the oil temperature shall not exceed 100 ℃, in order to prevent the occurrence of tempering effect, so that the hardness of the collar is reduced. Tolerance
Standard deep groove ball bearing has common grade, all with GB307.1. Clearance
Standard deep groove ball bearing has C2, standard (CN), C3, C4 and C5 level internal clearance, all with GB4604.
Post time: Jan-11-2022