NA4909UU bearing is Precision Machined Needle Roller Bearing with Inner Ring in complete Set, bearing has rubber seals on each side of the bearing and lubrication groove with hole.
Sizes: ID 45mm x OD 68mm x L 22mm
Match#: NA4909-2RSR, NA4909-2RS, NA4909LL, NA4909-UU, NA4909TT, NA4909RS
Boundary Dimensions in mm | Basic Dynamic Load | Basic Static Load |
Speed Limit RPM |
||||
C | C0 | ||||||
d | D | C | B | Fw | N | N | |
45 | 68 | 22 | 23 | 52 | 38,900 | 63,400 | 3500 |
NA4909UU Needle roller bearings with machined rings made of bearing steel have a low sectional height and a high load carrying capacity. The NA4909UU bearings can be used with or without an inner ring. Needle roller bearings NA4909LL without an inner ring will require the shaft to be hardened, ground and polished.
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