Drawn cup needle roller bearings are assemblies of two types: open type and closed type. The assemblies include thin-walled drawn outer rings, needle rollers and cage assemblies.
Drawn cup needle roller bearings are precision stamped outer rings made of thin steel plates, which have a small structural space and a large load capacity. Applicable to the installation space is limited and the shell hole is not suitable as a raceway occasions. And pressed into the bearing housing hole without further axial positioning.
HK：Perforated type drawn cup needle roller bearings.
HK… .RS：Perforated type drawn cup needle roller bearing with seal on one side.
HK… .2RS：Perforated type drawn cup needle roller bearings with seals on both sides.
BK：Sealed type drawn cup needle roller bearings.
BK…. .RS：Sealed type Drawn cup needle roller bearings with seals on one side.
F：Perforated type drawn cup full complement needle roller bearing.
FY：Perforated type drawn cup full complement needle roller bearing.
MF：Sealed type drawn cup full complement needle roller bearing.
MFY：Sealed type Drawn cup full complement needle roller bearing.
This type of needle roller bearing generally does not use the inner ring. If you need to use the inner ring, you can choose IR type inner ring.
DF drawn cup needle roller bearings are divided into bearing two ends perforated (HK type) and bearing one end closed type (BK type). Compared with the perforated type of drawn cup needle roller bearings, one end of the closed type of bearings is airtight, which is suitable for shaft ends and can withstand small axial travel force.
Sealed type drawn cup needle roller bearings with sealing ring seal can protect the bearing from debris intrusion and grease leakage under general working conditions. Therefore, they can operate for a long time in the range of -20℃-120℃. If the appropriate grease can be replenished at the right time or in short-term use, it can be used at +130℃.
The seal ring is made of synthetic rubber, with good elasticity and lined with steel plate core, with strong mechanical rigidity, in addition, the seal ring plays an axial guiding role for the cage.