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|product Introduction |
Rope wheels and pulleys are typical application examples for NNF series double row full complement cylindrical roller bearings. Due to the narrower outer ring, additional sleeves or distance pieces are not required. Two snap ring grooves on the outer ring simplify the bearing arrangement design for sheaves. For better corrosion protection, the bearings are also available with a unique, Black oxide coating can also be realized to optimize the tribological characteristics of the bearings. Furthermore, the bearings can be manufactured in application-specific clearance and tolerance classes.
product Parameter (specification)
Product feature and application
rope wheels, gearbox, paper manufacturing machinery, printing machinery, steel mill.
This series of bearings features a compact design and maximum load carrying capacity. The bearings are sealed on both sides and suitable for extreme operating conditions. Typical applications for NNF- bearings are rope wheels and pulleys. They are ideal for low to medium speeds and can take up axial forces and tilting moments in both directions. To prevent dust and splash water from entering the bearings, the NNF series is equipped with contacting seals on both sides. A special grease allows the bearings to operate under extreme conditions. Lubrication holes in the outer and inner ring enable easy re-lubrication through shaft and housing.
Do bearings provide a sufficient pressure seal?
Designers of vacuum applications often ask us this, and the answer is most definitely NO. A separate sealing device will have to be used to maintain any pressure differences.
KEGAN bearing tolerance range?
CLN/normal = ABEC1 P6 = ABEC3 P5 = ABEC5
How can I keep contamination out in a high-speed application?
By use of a labyrinth seal. The labyrinth seal is a non-contact seal with the particular internal construction which centrifuges dirt back out to where it came. AHR can supply data on these specialist seals if you require them.
Can I flush out a bearings lubricant and use another?
Not unless you use a prescribed flushing agent in an accurately environmentally controlled area and the bearing is thoroughly dried post flush and lubricated with the correct amount and type of grease.
I have my bearings, what tools do I use to fit them?
Depending on bearing type, the appropriate tools are usually pretty dull affairs. Whether you are driving, induction fitting, hydraulically fitting or swaging a bearing into place, the tools required are readily available from either the bearing manufacturers or third party agents. If you need appropriate tools, AHR can supply them.
KEGAN bearing group corporation initially founded in 2010 and can produce 12,000 specifications and ten types ranging from ID 5mm to OD 6000mm bearings which we have the auto-intellective property for special bearings and standard bearings. KEGAN bearings have reached class P4 with some can reach P2. Full variety, good quality, and famous trademark are our management strategy. We should improve our ability to predict product R&D with consummate techniques、selfcontained testing measures to supply the customers advanced products in good reliability. Finally, achieve mutual development and win-win objective.Full Complement Cylindrical Roller Bearing in stock