Cam Follower Needle Roller Bearing
SLZ---cam follower roller bearing is a bearing unit composed of
machined thick-wall outer race, needle roller or cylindrical roller, or
the rolling body guided by retainer or full-component rolling body, inner
or bolt and sealing. Featuring multiple compact structure, high rotating
accuracy, large varieties, broad adaptability and easy installation, it
can bear high radial load and certain shock load and is widely used in
lathe, metallurgical, textile and printing machinery, processing lines and
STO, NA22···2RS series of products can be applied to the
operation with high speed when it is being lubricated with
NATR series of supporting rollers are especially suitable for
heavy and medium speed.
NATV, NUTR, KRV, NUKR series of full-load
rolling body products can bear heavier load with low
Types of Designs:
Supporting structure of needle
rollers or cylindrical rollers is adopted for this kind of bearing. There
are multiple types of sealing for preventing pollutant or water intrusion,
various profile forms such as cylindrical & arc for the outer circle
of outer race, bolt shaft structure which is convenient for direct
installation and suitable to different occasions. Special structure can be
designed as well according to the requirements of
Product Precision Accuracy:
tolerance and geometrical accuracy is based on GB/T6445.
difference of needle roller diameter is 2μm, and the precision grade is G2
Bearing radial running clearance conforms to the value
defined by 0 group of GB/T4604.
Diameter tolerance of outer-race arc is
For fuller information on the special requirements of bearing
running clearance, inscribed circle and accuracy grade, please contact
Material for needle roller is
GCr15 bearing steel, quench-hardening HRC60---65.
Material for inner
and outer races is GCr15 bearing steel or carburizing steel.
for cages is quality low-carbon steel or reinforced
Outer race surface of
supporting roller is arc form so as to avoid rim stress.
plastic cages (suffixed with TN) and sealing-element material, operating
temperature is -300C---+1000C.
Outer race position is adjusted by
eccentric sleeve structure so that it can match the motion rail.
For general-disposition design of bearings, refer to the relevant
recommendation in the applied technology of rolling