AOBOTE bearing Limited Company is targeting high quality imported bearing,such as Fag Bearing Type,To supply exactly what is customers’ required,AOBOTE also engages in other many famous brand - skf,fag,nsk,timken,ina,ntn and so on,and other
bearing types,for example: Deep Groove Ball Bearing、Taper Roller Bearings、Spherical Roller Bearing、Needle Roller Bearing、Angular Contact Ball Bearing、Cylindrical Roller Bearing、Thrust Roller Bearing,and The other.Today we will talk
about The basic types of basic code said FAG bearing.
Basic types of basic code said FAG bearing, structure and size. Lead before code said bearing parts in the basic code, FAG bearing code by the basic code, codes of front and rear codes. Basic code said bearing basic types, structures and
sizes. Front code said bearing parts in the basic code before. Post code said bearing structure shape, size, sealing, cage, tolerance, clearance, heat treatment, packaging, technical requirements, such as have change, after bearing the
basic code to add complementary code.
1 lead code
Front code R directly on imported bearing basic code before the rest of the front code with basic code separated by dots.
GS - thrust cylindrical roller bearing race. Example: 81112 GS.
K - rolling element and cage assembly. Ex: : thrust cylindrical roller and cage assembly k. 81108.
R - without a separable bearing inner ring or outer ring. Example: RNU207 - not NU207 bearings with inner ring.
WS - thrust cylindrical roller bearing shaft circle. Example: the WS. 81112.
2 post code
Post code on the back of the basic code. When the rear with multiple sets of symbol should be listed in the table according to INA bearing code post code of the arrangement of the order from left to right. Some post code with basic code
is separated by dots.
(1) internal structure
A, B, C, D, E, internal structure change
Case 1: FAG angular contact ball bearing 7205 C, 7205 E, 7205 B, 15 degrees C - contact Angle, E - 25 degrees of contact Angle, contact Angle B - 40 degrees.
Example 2: cylindrical roller, spherical roller and N309E thrust spherical roller bearing, 21309 e, 29412 e - enhanced design, bearing load capacity.
VH - roller self-locking full of roller roller bearing (the last contact roller diameter is different from the standard of the same model bearing). Example: NJ2312VH
(2) the appearance of SKF bearing size and external structure
DA - with double half an inner ring of the separable type double row angular contact ball bearings. Example: 3306 da
DZ - cylindrical roller bearing outside diameter. Example: ST017DZ
K - taper hole TIMKEN bearings, taper 1:12. Example: 2308 k.
K30, cone bearing and taper 1:30. Example: 24040 k30.
2 ls - double inner ring, two sides with double row cylindrical roller NTN bearing dust cover. Example: NNF5026C. 2 ls. V - internal structure change, double inner ring, two sides with dust cover, with double row cylindrical roller
N - on the outer bearing with locking slot. Example: 6207 n.
NR - on the outer ring with locking slot and stop ring bearings. Example: 6207 nr.
N2 - on the outer ring with two locking slot four-point contact ball bearing. Example: QJ315N2.
S - outer ring lubrication oil and three oil hole of the bearing. Example: 23040 was. Bearing outside diameter D is greater than or equal to 320 mm of spherical roller bearings are not marked S.
X-ray appearance size comply with the provisions of the international standard. Example: 32036 x.
Z.. - the technical requirement of special structure. Since Z11 drill down in turn. Example: Z15 - stainless steel bearing (W - N01.3541).
ZZ - roller bearing with two guide the outer ring.
(3) the sealing and dustproof
RSR - bearing with seals. Example: 6207 RSR.
ZR - bearing side with dust cover. Example: 6207 zr.
2 zr - both sides bearing with sealing cover. Example: 62072 zr.
ZRN - bearing side with dust cover, the other side with locking slot on the outer ring. Example: 6207 ZRN.
2 ZRN - both sides bearing with dust cover, with locking slot on the outer ring. Example: 62072 ZRN.
NSK bearing cage (4) and its material
1) solid cage.
A or B in the cage code, after A for cage guided by outer ring, B says cage guided by inner ring.
F - steel solid cage, guide roller.
FA entities - steel cage, outer guide.
FAS entities - steel cage, outer guidance, with lubrication slot.
FB entities - steel cage and inner ring.
FBS entities - steel cage and inner ring, with lubrication slot.
FH entities - steel cage, after carburizing and quenching.