NSK bearing code

1, internal structure

CA -- solid retainer with brass

CD --  retainer with the punch

 

SKF High load self-aligning roller bearing

E -- high load cylindrical roller bearing

H -- high load self-aligning roller thrust bearing

 

2, material

G -- the ferrule, the rolling body is carburizing steel

H -- the ferrule, the rolling body is stainless steel

3, retainer

M -- copper alloy solid cage

T -- synthetic resin retainer

W -- the punch retainer

V -- without cage

4, NTN bearing sealing ring, dustproof cover

Z, ZS -- one side with steel plate dustproof cover

ZZ, ZZS -- two sides with steel plate dustproof cover

D, DU -- one side with contact-type rubber sealing ring

DD, DDU -- two sides with contact-type rubber sealing ring

V -- one side with non contact-type rubber sealing ring

VV -- two sides with non contact-type rubber sealing ring

 

5, NACHI bearing ferrule shape

K -- tapered bore, taper 1 : 12

K30 -- tapered bore, taper 1 : 30

E --  with cuts or oil hole on the ferrule

E4 -- with oil groove, oil hole on the outer ring

N -- Outer diameter with stopping groove

NR -- outer diameter with stopping groove, the snap ring

 

6, FAG bearing fit and liner

DB -- back-to-back mounting in pair

DF -- face to face mounting in pair

DT -- tandem mounting

+ K -- out ring with liner

+ L -- inner ring gasket

+ KL--  inner ring, out ring with liner

H -- adapter sleeve structure code

AH -- removing sleeve structure code

HJ -- L type gear rim structure code

 

7, TIMKEN bearing special specifications

X26 -- using temperature limited under 150 DEG C.

X28 -- using temperature limited under 200 DEG C.

X29 -- using temperature limited under 250 DEG C.

S11 -- Self-aligning roller bearing, the using temperature limited under 200 DEG C.