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Products Description
Basic parameters: 6306ZZ
Type: deep groove ball bearing
Model: 6306ZZ
Inner diameter: 30mm
Outer diameter: 72mm
Thickness: 19mm
Bearings rz and zz cannot be used in common. Bearing rz has an iron dust cover on one side and bearing zz has iron dust covers on both sides.
They are all tilting pad support bearings, usually composed of 3 to 5 or more arc-shaped pads that can tilt freely on the fulcrum, so they are also called live multi-pad support bearings, and also called swinging pad bearings. Because its pads can swing freely with the speed, load and bearing temperature, multiple oil wedges are formed around the journal. And each oil film pressure always points to the center, which has high stability.
Can bearings rz and zz be used in common?
Fully usable. We use it all the time. (2Z in the current model has replaced the original zz label, which means that both sides have dust cover) RZ refers to the sealed bearing, the internal environment of the motor is relatively good, and the dustproof has basically met the requirements. There is no need to increase the sealing.
R: Indicates the mute level
ZZ: Indicates that both sides of the bearing are equipped with iron dust cover
CM: Indicates the radial internal clearance of the motor
NS7: Indicates the mark of grease inside the bearing
S: Indicates the filling amount of grease inside the bearing
5: Indicates that the packaging of the bearing is commercial packaging
Z: Steel plate dust cover on one side of the bearing
ZZ: Steel plate dust cover on both sides of the bearing
V: Rubber non-contact dust cover on one side of the bearing
VV: Rubber non-contact dust caps on both sides of the bearing
DU: Contact dust cover made of rubber on one side of the bearing
DDU: rubber contact dust cover on both sides of the bearing
NR: Bearing outer ring with radial positioning groove and positioning ring
M: Copper alloy car cage
EM: Roller-guided copper alloy machined cage
EW: Roller guided rigid cage
W: Ferrule-guided steel cage
ET: resin cage
TYN: resin cage
EA: Steel S-shaped stamping cage for spherical roller bearings
CD: steel alloy cage
CA: shape of copper alloy cage
AW: 30 degree angular contact bearing/steel cage
BW: 40 degree angular contact bearing/steel cage
C0 standard clearance code (omitted in general bearing models)
C1: Clearance slightly smaller than C2 clearance
C2: Clearance smaller than standard clearance
C3: Clearance slightly larger than the standard clearance
C4: slightly larger clearance than C3
C5: slightly larger clearance than C4 clearance
CM: Conforms to the internal clearance of the motor
CC0: Non-interchangeable standard clearance
CC1: Smaller non-interchangeable clearance than CC2
CC2: Clearance smaller than non-interchangeable standard clearance
CC3: Clearance slightly larger than the non-interchangeable standard clearance
CC4: slightly larger clearance than CC3
CC5: slightly larger clearance than CC4
MC3: Miniature bearing standard clearance
MC1: Less than MC2 clearance
MC2: Smaller than MC3 clearance
MC4: Greater than MC3 clearance
MC5: Greater than MC4 clearance
MC6: Greater than MC5 clearance
P0: normal precision
P6: better than normal precision
P5: better than P6 accuracy
P4: better than P5 accuracy
P3: better than P4 accuracy
P2: better than P3 accuracy
PN7B: screw bearing / equal to P4 accuracy
DB: back-to-back combinations
DF: face-to-face combination
DT: series combination
SU: Any combination of single
DU: Any combination of two bearings
Triple combination: DFD, DTD
Quadruple combination: DFF, DFT
A angle: 30 degree contact angle
B angle: 40 degree contact angle
C angle: 15 degree contact angle
A5 angle: 25 degree contact angle
QJ: Four point angular contact bearing with 35 degree contact angle
TAC: Ball screw bearing 60 degree contact angle
Our company specializes in the production and processing of China (Open, Z, ZZ, RS, 2RS, RZ, 2RZ) Auto High-Precision Deep Groove Ball Bearing and other products with a complete and scientific quality management system. We are dedicated to providing you with the best products and the most thoughtful service with professional management concepts, high quality products, and the business philosophy of excellence. In the new historical period, we will, as always, adhere to the fundamental tenet of keeping promise and serving customers.