HF0306 Drawn cup roller clutches bearings needle

Descriptions of HF0306 Clutches bearings needle

Needle bearings use a roller style rolling element to reduce friction of rotating surface and are more compact as the clearance has been reduced. Typically, the needle bearings consist of inner race, needle shaft, which orients the needle roller and an outer race. Needle bearings are primarily used in engine components, such as rocker arm pivots, pumps, compressors and transmissions.

Needle roller and cage type bearings use a roller style rolling element however, they do not include inside and outside races to maximize allotted space. Needle roller and cage type bearings have a larger surface area that is in contact with the bearing outer surface compared to traditional ball bearings. Typically, the needle roller bearings consist of needle cage, which orients and contains the needle rollers, and the needle rollers themselves. Needle roller and cage type bearings are predominantly used in engine components.

Drawn cup needle roller clutches have a small radial section height and are also commonly known as One Way Bearings or Anti-Reverse Bearings. This design uses the same small radial section as drawn cup needle roller bearings which make better use of available space. The units are compact, lightweight and operate directly on a shaft; they are also suitable for transmitting high torque.

One Way Bearings are designed to transmit torque between the shaft and housing in one direction and allow free motion in the opposite direction. Proper mounting is easily accomplished with a simple press fit in the housing. Clutches and clutch and bearing assemblies are offered both in inch and metric series. One Way Bearings without bearing assemblies are indicated by suffix: HF/FC/RC. One Way Bearings with bearing assemblies are indicated by suffix: HFL/FCB/RCB.

Name	One-way Needle Roller Bearings
Model	HF, HFL, RC, RCB, EWC…
Material	Nylon, Stainless, GCr15(Aisi52100), ST14 or as customers' requirement
Precision	P0, P6, P5, P4
Clearance	C0,C1,C2,C3,C4,C5 etc.
Cage Type	Brass cage,Stainless cage or as customers' requirement
Features	High load-carrying capacity, Suitable for high speeds, Particularly easy to install,
Application	Gear pumps, Sheaves, Automotive transmissions, Two-cycle engines .etc
Package	pallet, wooden case,industrial package or as customers' requirement

	For shaft diameter in mm	Features
HF	6 - 35	with steel springs
HF..-KF	3 - 10	with plastic springs
HF..-KF-R	3 - 8	with plastic springs and knurled outer ring
HF..-R	6 - 8	with steel springs and knurled outer ring
HFL	6 - 35	with plain or rolling bearing arrangement, steel springs
HFL..-KF	3 - 8	with plain or rolling bearing arrangement, plastic springs
HFL..-KF-R	3 - 8	with plain or rolling bearing arrangement, plastic springs, knurled outer ring
HFL..-R	6 - 8	with plain or rolling bearing arrangement, steel springs, knurled outer ring

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Specifications of HF0306 Clutches bearings needle

 

Fw	3 mm
D	6,5 mm
C	6 mm	Tolerance: -0,3
rmin	0,3 mm
m	1 g	Mass
Md zul	0,18 Nm	Permissible torque
nGW	45000 1/min	Limiting speed with rotating shaft (valid for grease and oil lubrication)
nGA	8000 1/min	Limiting speed with rotating outer ring (valid for grease and oil lubrication)
	HK0306-TV	Suitable drawn cup needle roller bearings for radial bearing arrangement