DEMARK (Beijing) Automation Technology Co., Ltd.
service@demark.ltd
Search
Home
About DEMARK
Profile
Equipments
Certificates
Factory View
Product
Linear Motion Bearings
Steel Balls And Needle Roller Pins
Rubber Coated Bearings
Bearing Puller
Tapered Roller Bearing
Spherical Roller Bearings
Needle Roller Bearing
Cylindrical Roller Bearings
Deep Groove Ball Bearings
Angular Contact Ball Bearings
Pillow Block Bearings
Insert Bearings
Rod-End Bearings
Slewing Bearings
Stainless Steel Bearings
Ceramic Bearings
Thrust Bearings
Spherical Plain Bearing
Agricultural Bearings
Solutions
Food Producing Machinery
Transmission Equipments
Textile Machinery
Agricultural Machinery
Video
News
Company Dynamics
Industry News
Contact Us
By Keyword
By Part Number
d:
D:
B:
Home
>
Dmkbearing
>
Needle Roller Bearing
> NA Series
NA Series
Send Inquiry
PDF
Dimension and Parameters
Bearing Designation
Current Code :
NA4909RS
Original Code :
NA4909-2RS
Shaft Diameter（mm） :
45
Weight(Kg) :
290
Boundary Dimensions(mm)
d :
45
Fw :
52
D :
68
C :
22
B :
23
Basic Load Rating(N)
Dynamic :
34800
Static :
56800
Limiting Speed(rpm)
Oil :
3900
