>> P.141
D■Structure and FeaturesIKO Machined Type Needle Roller Bearings are bear-ings with a low sectional height and large load ratings. The outer ring has high rigidity and can easily be used even for light alloy housings. These bearings are available in metric series and inch series, both of which have the caged type and the full complement type. It is therefore possible to select a suitable bear-ing for use under various conditions such as heavy loads and high-speed or low-speed rotations. In addi-tion, there are bearings with and without an inner ring. As the type without inner ring uses a shaft as the raceway surface, a compact design is possible.Structures of Machined Type Needle Roller Bearings RNA49NA49RNA49…UUGTROuter ringCage Needle rollerOuter ringCageInner ring Needle rollerOuter ringNeedle rollerCageSealOuter ringMallet-shaped rollerStop ringD2
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