What Are Our Concerns About Bearings（34）

Q1: 6100.6200, such as 6 head bearings, what bearings belong to?  What bearing does 7206 start with 7 words belong to?  

A:6: deep groove ball bearings 7: angular contact ball bearings

in addition 0:1 double row angular contact ball bearing, self-aligning ball bearing 2: spherical roller bearings, thrust spherical roller bearing 3:4: tapered roller bearing double row deep groove ball bearing 5:8: thrust ball bearing thrust cylindrical roller bearings, cylindrical roller bearing double row or column with NN said U: QJ outer spherical ball bearing:  Four point contact ball bearing.  

Q2: Can you briefly introduce deep groove ball bearings?

A:The structure of deep groove ball bearings, like most bearings, is composed of inner ring, outer ring, roller and cage four parts, some deep groove ball bearings also have dust cover or seal design, can not need lubrication.  Deep groove ball bearing is a wide range of bearings in the machinery industry, it can be used in precision instruments, low noise motors, cars, motorcycles and general machinery.  

Deep groove ball bearings are mainly used to bear radial load, but they can also bear a certain amount of axial load.  Compared with other types of bearings of the same size, it has the advantages of small friction coefficient, high limit speed, and can be used for high speed or even extremely high speed operation. Its output accounts for more than 60-70 percent of the total output of bearings. It is a kind of bearing with high output, wide use and low price.  Deep groove ball bearings can be used for gearboxes, instruments and meters, motors, household appliances, internal combustion engines, transportation vehicles, agricultural machinery, construction machinery, construction machinery, etc  

The size range of deep groove ball bearings is: inner diameter size range of 10mm ~ 1320mm outer diameter size range of 30mm ~ 1600mm width size range of 9mm ~ 300 mm  

The models are as follows: 16001 to 16020(ZZ or 2RS) 6000 to 6020(ZZ or 2RS) 6200 to 6220(ZZ or 2RS) 6300 to 6315(ZZ or 2RS)  

Q3: What is the size of 6908 standard bearings?

A:Deep groove ball bearing  

Inside diameter 40  

Diameter of 62  

Thick 12  

Q4: What is the difference between bearing 6204RZ and 6204RS?

A:Bearing 6204RZ: Deep groove ball bearing with skeleton rubber seal ring (non-contact) on one side;  

6204RS: Deep groove ball bearing with sealing ring on one side (contact type);  

That is to say, the two seals are different, and the contact form is different.  

Bearing name: KOYO 6204-RZ  

New model: 6204-RZ  

Old model: 160204K  

Inner diameter D (mm): 20  

Outer diameter D (mm) :47  

Thickness B (mm) :14  

Brand model: 6204RU  

Brand: KOYO  

Category: deep groove ball bearings  

Bearing 6204-RZ purpose:  

Woodworking machinery, machine tool spindle, reducer, large agricultural machinery, mechanical Equipment, household appliances, printing machinery, woodworking machinery, tower crane, industrial supplies.  

Bearing model: 6204-RS bearing  

Inside diameter: 20  

Outer diameter: 47  

Thickness: 14  

Brand: New TORRINGTON FAFNIR  

Old model: 204P  

Series: deep groove ball bearings  

Bearing 6204RS for use  

General motors, instruments and meters, motors, mechanical equipment, home appliances, reducer, water pumps, medical instruments, automobiles, industrial supplies, printing equipment, widely used.  Bearing 6204RZ: Deep groove ball bearing with skeleton rubber seal ring (non-contact) on one side;  

6204RS: Deep groove ball bearing with sealing ring on one side (contact type);  

That is to say, the two seals are different, and the contact form is different.  

Bearing name: KOYO 6204-RZ  

New model: 6204-RZ  

Old model: 160204K  

Inner diameter D (mm): 20  

Outer diameter D (mm) :47  

Thickness B (mm) :14  

Brand model: 6204RU  

Brand: KOYO  

Category: deep groove ball bearings  

Bearing 6204-RZ purpose:  

Woodworking machinery, machine tool spindle, reducer, large agricultural machinery, mechanical Equipment, household appliances, printing machinery, woodworking machinery, tower crane, industrial supplies.  

Bearing model: 6204-RS bearing  

Inside diameter: 20  

Outer diameter: 47  

Thickness: 14  

Brand: New TORRINGTON FAFNIR  

Old model: 204P  

Series: deep groove ball bearings  

Bearing 6204RS for use  

General motors, instruments and meters, motors, mechanical equipment, home appliances, reducer, water pumps, medical instruments, automobiles, industrial supplies, printing equipment, widely used.  Bearing 6204RZ: Deep groove ball bearing with skeleton rubber seal ring (non-contact) on one side;  

6204RS: Deep groove ball bearing with sealing ring on one side (contact type);  

That is to say, the two seals are different, and the contact form is different.  

Bearing name: KOYO 6204-RZ  

New model: 6204-RZ  

Old model: 160204K  

Inner diameter D (mm): 20  

Outer diameter D (mm) :47  

Thickness B (mm) :14  

Brand model: 6204RU  

Brand: KOYO  

Category: deep groove ball bearings  

Bearing 6204-RZ purpose:  

Wood working machinery, machine tool spindle, reducer, large agricultural machinery, mechanical Equipment, household appliances, printing machinery, woodworking machinery, tower crane, industrial supplies.  

Bearing model: 6204-RS bearing  

Inside diameter: 20  

Outer diameter: 47  

Thickness: 14  

Brand: New TORRINGTON FAFNIR  

Old model: 204P  

Series: deep groove ball bearings  

Bearing 6204RS for use  

General motors, instruments and meters, motors, mechanical equipment, home appliances, reducer, water pumps, medical instruments, automobiles, industrial supplies, printing equipment, widely used.  Bearing 6204RZ: Deep groove ball bearing with skeleton rubber seal ring (non-contact) on one side;  

6204RS: Deep groove ball bearing with sealing ring on one side (contact type);  

That is to say, the two seals are different, and the contact form is different.  

Bearing name: KOYO 6204-RZ  

New model: 6204-RZ  

Old model: 160204K  

Inner diameter D (mm): 20  

Outer diameter D (mm) :47  

Thickness B (mm) :14  

Brand model: 6204RU  

Brand: KOYO  

Category: deep groove ball bearings  

Bearing 6204-RZ purpose:  

Woodworking machinery, machine tool spindle, reducer, large agricultural machinery, mechanical Equipment, household appliances, printing machinery, woodworking machinery, tower crane, industrial supplies.  

Bearing model: 6204-RS bearing  

Inside diameter: 20  

Outer diameter: 47  

Thickness: 14  

Old model: 204P  

Series: deep groove ball bearings  

Bearing 6204RS for use  

General motors, instruments and meters, motors, mechanical equipment, home appliances, reducer, water pumps, medical instruments, automobiles, industrial supplies, printing equipment, widely used.  

Q5：What is the difference between bearing 6004 and bearing 6205?

A:They are both deep groove ball bearings, but their differences are very large,  

The 6205 is much larger than the 6004, and has much greater load capacity than the 6004.  

Deep groove ball bearing 6205 inner diameter 25mm outer diameter 52mm thickness 15mm  

Basic rated dynamic load 14.0kN Basic rated static load 7.85kN  

Deep groove ball bearing 6004 inner diameter 20mm outer diameter 42mm thickness 12mm  

Basic rated dynamic load 9.38kN Basic rated static load 5.02kN  

Q6: What is the model of 20*47*14 bearing?

A:Deep groove ball bearing is 6204，angular contact ball bearing is 7204，cylindrical roller bearing is NU204，self-aligning ball bearing is 1204.

Q7: What is the type of bearing with inner diameter 20 and outer diameter 52?

A:6304 deep groove ball bearings, 7304 single row Angular contact ball bearings, 3304 double row Angular contact ball bearings, 1304 self-aligning ball bearings, NU304 and NU2304 single row cylindrical roller bearings, etc. 

Q8：What is the difference between bearing 7310B and 6310?

A:They do not belong to the same type of bearings, 7310B is angular contact ball bearing, B indicates that the contact Angle is 40 degrees, mainly used to bear axial load, 6310 is deep groove ball bearing, no contact Angle, mainly used to bear radial load, these two bearings are used in the motor and pump.