Next, Tianjin Xinzehui Mechanical Equipment Co., LTD will take you to have a detailed understanding:
F -- Deep groove ball bearings with flange outer ring (suitable for inside diameter & LT;10mm), example: F605
HR -- Tapered roller bearing with high load, example: HR30207J
MF -- deep grooved ball bearings of specified size with flange outer ring (for inside diameter & LT;10mm), example MF52
MR -- deep groove ball bearings of specific size (for bore & LT;10mm), example MR31
.NSK bearing rear code 1, internal structure
CA -- Solid cage with brass
CD - High load self-aligning roller bearings with ram retainer.
E -- High load cylindrical roller bearing
H -- Self-aligning roller bearing with high load thrust
2, the material
G -- Ring, the rolling body is carburized carbon steel
H -- Ring with stainless steel rolling body
3. Cage
M -- Copper alloy solid retainer
T -- Synthetic resin retainer
W -- Press cage
V -- No retainer
4. Sealing ring and dust cover
Z, ZS -- one side with steel plate dust cover
ZZ, ZZS -- dust cover with steel plate on both sides
D, DU -- one side with contact rubber sealing ring
DD, DDU - both sides with contact rubber sealing ring
V -- Non-contact rubber sealing ring on one side
VV -- one side with non-contact rubber sealing ring
5. Ring shape
K -- Taper hole, taper 1:12
K30 -- Taper hole, taper 1:30
E -- Cut or oil hole in the ring
E4 -- Oil groove and oil hole on the outer ring
N -- Outside diameter of outer ring with stop groove
NR -- outside diameter of outer ring with stop groove and stop ring
6. Matching and gasket
DB -- installed back to back in pairs
DF - mounted face to face in pairs
DT -- Series installation in pairs
+K -- outer ring with padding
+L -- padded inner ring
+KL -- inner ring and outer ring with gasket
H -- Structural designation of the tight sleeve
AH -- structural code for disassembly sleeve
HJ -- Code name of L - type side ring
Supplement: The following letters indicate the bearing clearance
C1-- Radial clearance of centripetal bearing is smaller than C2 clearance.
C2-- Radial clearance of centripetal bearing, smaller than standard clearance.
CN (omitted) -- radial standard clearance of centripetal bearing.
C3-- Radial clearance of radial bearing, larger than the standard clearance.
C4-- Radial clearance of centripetal bearing is larger than C3 clearance.
C5-- radial clearance of centripetal bearing, larger than C4 clearance.
CC1-- Radial clearance of cylindrical roller bearings (not interchangeable) is smaller than that of CC2.
CC2-- Radial clearance of cylindrical roller bearings (not interchangeable), smaller than standard clearance.
CC-- radial standard clearance for cylindrical roller bearings (not interchangeable).
CC3-- Radial clearance of cylindrical roller bearings (not interchangeable), larger than the standard clearance.
CC4-- Radial clearance of cylindrical roller bearings (not interchangeable) is larger than that of CC3.
CC5-- Radial clearance of cylindrical roller bearings (not interchangeable) is larger than that of CC4.
MC1-- radial clearance of small, micro ball bearing is smaller than that of MC2.
MC2-- radial clearance of small and micro ball bearings is smaller than that of MC3.
MC3-- Radial clearance standard clearance for small and micro ball bearings.
MC4-- Radial clearance of small and micro ball bearings is larger than that of MC3.
MC5-- radial clearance of small and micro ball bearings is larger than that of MC4.
MC6-- radial clearance of small and micro ball bearings is larger than that of MC5.
CM-- radial clearance of deep groove ball bearings for motors and cylindrical roller bearings.
CT-- Radial clearance of cylindrical roller bearings for motors.