Needle roller bearings










 



1) MANUFACTURING RANGE

  dimension series d Fw Cage
single row -
standard
NA / RNA 48, NA / RNA 49, NA 69..(d<30 mm)/NA 69, NA/ RNA40, NA 40..V 20..260 mm   V
single row -
specials
NA, RNA.. 29..150
mm
10..150
mm
TN, V
double row -
standard
NA 69..(d>32mm)/RNA 69 35..80 mm    
Drawn- cup needle roller bearings RHNA, RHNA..V,RBNA, RTNA,RFNA, Ca, 942, 943   6..50 mm TN, V
Needle roller and cage assemblies K   8..105 mm  
Needle roller and cage assemblies double row KK   35..95 mm  
lower pressure cylinder bearings for spinning machines UWL28, UWL28A, UWL32, UWL36, UWL45, RUWL24   14.2..25
mm
 
cardan drives bearings 490, 491, 492, 704, 804   8.9..82.7
mm
 
needle roller and cage assemblies for connecting rod
applications
KZK, KBK   12..18 mm
 



2) DESIGN TYPES

Single row with and without inner ring
Double row with and without inner ring


3) TECHNICAL EXECUTION CONDITIONS

a) DIMENSIONS The boundary dimensions according to ISO15

b) TOLERANCE CLASSES P0 and P6 according to ISO 199

4) CAGE TYPES

Pressed steel cage



5) APPLICATIONS

a) ENGINEERING MACHINE INDUSTRY

b) METAL- WORKING INDUSTRY

c) CHEMICAL INDUSTRY

d) MINING INDUSTRY

6) SUGGESTIONS

a) MISALIGNMENT

b) MINIMUM AXIAL LOAD

c) RUNNING TEMPERATURES