ZWZ Spherical roller bearing

Wafangdian Bearing Group Co.,Ltd was established in 1938(ZWZ spherical roller bearing has very large market share in the world),its also named Wa zhou in China bearing market,as the birthplace of China's Bearing industry, wafangdian bearing group is the biggest bearing manufacturer in China,ZWZ is its register trademark,which is ranked top 8 of the world bearing industry,as the first bearing brand in China,its key products is Major technical equipment bearing,Rail Bearing,Vehicles bearing,wind power new energy bearing,high precision Machine and high precision ball screw,high precision Large forgings,and now ZWZ have 8 production bases all over the world,23 bearing manufacturer, With state-level enterprise technical centers,National bearing testing centre and the only large national bearing engineering technolgoy research centre in China Bearing Industry.

Spherical roller bearing is the most influential bearing type of ZWZ brand,it can produce inner ring 30-2000mm,outer ring 68-2700mm spherical roller bearing,precision level P0,P6,P5 also available in ZWZ,spherical roller bearing also named self-aligning roller bearings by some countries or area,this type of bearing are widely used in Mining machinery, paper-making machinery,shipbuilding, textile machinery, Mill, power etc., for customer to know more about spherical roller bearing character,XRB introduce some spherical roller bearing cage suffix as follows:

CA     One piece machined brass cage,no middle rib in the inner ring,but two little rib,symmetrical rollers,these design are large and medium dimension spherical roller bearing,its the most used type in spherical roller bearing

 

CAF1 the same design with CA,carbon steel cage

CAF3 the same design with CA,Ductile solid cage

CAC   the same design with CA,Curvature Optimization of the rings

ACA   no middle rib of the inner ring,with two small rib,symmetrical rollers and one piece cage with movable Spacer.

CB    with middle rib and small rib in the inner ring,two pieces cage,symmetrical rollers

C       this design is spherical roller bearing with symmetrical rollers,no rib of the inner rings,pressed steel.

ZWZ spherical roller bearing have cylindrical bore and tapered bore, 240/241/248/249 series spherical roller bearing is tapered bore 1:30,suffix K30, the other spherical roller bearing with tapered bore 1:12,with suffix K.

 

CAB CA type spherical roller bearing,Central perforation of the rollers,with Pillar cage.

CABC CAB type spherical roller bearing,improved roller guided(Roller surface roughness,Raceway surface roughness,Optimization of heat treatment method),this design can Reduce friction.

C3  Radial internal clearance greater than Normal 

C4  Radial internal clearance greater than C3 

C9  Clearance is defferent with standard 

D   split spherical roller bearing

P5  Dimensional and running accuracy to P5 tolerance class 

P6  Dimensional and running accuracy to P6 tolerance class 

HC  rings and element or rings or element are made of carburizing steel

HCR the rings are made of carburizing steel

K   Tapered bore, taper 1:12 

K30 Tapered bore, taper 1:30

L   Light Alloy solid cage

N   Snap ring groove in the outer ring

NR  Snap ring groove in the outer ring, with appropriate snap ring

Q1  Aluminum,Iron,Manganese brass cage

2RS with Steel skeleton NBR sealed bearing,double side

2RS2 Both sides of the steel skeleton Viton seals