FYH bearing suffix code meaning

L3 (triple sealing ring assembly is an oil seal with triple lip glued on the steel plate sealing plate, which can effectively prevent dust and muddy water from entering the bearing, and has a good dustproof function) The accessory code of the dust cover is C D FC and FD, of which C D type is a through type D type and FD type are one end sealed type and CD FCD type with vertical bearing housing The components for high temperature are marked D1K2 D9K2 and D2K2 for low temperature, of which D9K2 is used for high temperature bearings The maximum operating temperature for lubricating with fluorine grease is 250°C. FYh bearings used for high-speed bearings are marked as K3, which can achieve high-speed rotation, low heat generation and low torque. Special bearings for blowers are marked S5 and stainless steel series are marked s6. There are also some subsidiary codes to indicate cooperation:

J: Indicates that the diameter tolerance zone of the spherical bearing seat of the bearing housing is J7

H: Indicates that the diameter tolerance zone of the spherical bearing seat of the bearing housing is H7,

K: Indicates that the diameter tolerance zone of the spherical bearing seat of the bearing housing is K7;

Code of grease:

D1 means SH44M lubrication,

D2 means SH33M lubrication,

D9 means fluorine grease lubrication;

The representation of the stop screw is as follows:

G4: pointed screw,

G6: Top screw with pin,

G7: With anti-loosening nylon screw;



The method and significance of the thread diameter of the grease nipple of the bearing housing:

A1: PT1/8 pipe thread,

A2: PF1/8 pipe thread,

A3: PT1/4 pipe thread,

A4: PF1/4 pipe thread;

Representation method and meaning of the position of the oil filler:

B1: Oil filling hole on the right side,

B2: Left oil filling hole,

B3: 45 degree oil filling hole,

B5: 30 degree oil filling hole,

B7: Oil filling holes on the left and right sides;

Representation method and meaning of bearing housing shape processing:

E1: Steel plate or cast iron cover mounting slot,

E3: Cast iron mounting slot,

E4: No oil supply type bearing box; bearing box material code and meaning

H1: stainless steel casting,

H5: Rolled steel for general structural use,

SC: Carbon steel cast steel.

Representation method of oil seal:

K2: Silicone rubber sealing ring,

K3: Non-contact sealing.

Sealing device logo:

P3 : No oil seal, no oil slinger

P4: no oil seal;