Yfb drawn cup needle roller clutches can provide the following series: hf, hfl, rc, rcb
Outer ring for drawn cup needle roller bearings.
(dc type) is made of cold rolled steel strip accurately formed.Strycture of dc needle roller
Bearing features space saving and higher capacity. They are suitable for applications with limited space and housing not hard enough to act as raceway.
Roll packing or single box packing as required
If produce the following combined radial/thrust bearings include: Nokia, NKIB, NX, NKX, NKXR, RAX700, RAXF700, RAX400, RAX500, RAXPZ400, RAXZ500
Needle and retainer assembly, needle bearing and drawn cup needle roller bearings are all moving tip bearings. They can be used as positioning bearing with combined with stop thrust rings or under small load at low speed and being fully lubricated. Other positioning bearing always have the problem of much space occupied.
Combined if needle bearings are single directional positioning bearings or the positioning bearings with minimum radically sectional height. If the centripetal needle bearings are used with thrust ball bearings or cylindrical roller bearings in combination, the applicable range will be greatly expanded. The combined needle bearings are mainly used in transmission engineering and tooling machines such as the bearing in the main shaft of a drill press, drill sleeve , positioning central shaft, worm, spanner teeth head and so on and so forth.
Single box
If drawn cup needle bearings would provide the following series: HK, BK, F, FY, FH, MF, MFH, MFY, SCE, BCE, SCH, BCH, SN, B, BH, M, MH, etc.
If drawn cup needle bearings is formed with thin steel plate through precision punching with very sectional height and big load capacity. This kind of bearings are especially applicable to the big quantity production with economic demands.
Stable combination is used between the needle bearings and the bearing cage. No axle fixture is required. Even under high speed and heavy load condition, the bearing functions can be fully maintained. Furthermore, no lubricating for a long time is possible due to its high storage volume of grease
If thrust needle bearings are composed of a set of tray ring gaskets combined with retainer with roll bearings ( needles). The stand leads and holds many rolling elements, thicker ring gaskets of ls, gs, ws, zs series
YFB connecting rod supporting needle and cage assembly can provide the following
Series: K, KK, KZK
YTB connecting rod supporting needle & cage assembly is applicable to the medium and small size diesels. The needle bearings , due to its special operational conditions , must bear the shock force from the explosion in the cylinder, the inertia forces of the piston, the connecting rod and the crank shaft. Therefore , needles and the retainer must sustain the great centrifugal forces and acceleration forces. Besides, it is responsible for the heat dissipation. So, the flow of lubricant oils must be taken into account during the entity designing of the bearing so that enough cooling area is increased , or coating copper, silver on the surface to prevent the abnormal abrasion during the starting period. To conclude, the connecting rod supporting needle retainer assembly has the following merits: light weight, lower inertial force, the use of highly anti-fatigue, highly rigid and highly abrasion-resistant materials, low abrasion force in low speed operation and high cooling capability.
Roll packing or single box
