NA69 series Needle Roller Bearings
NA69 series: Double Row Machined-Ring Needle Roller Bearing, heavy-duty needle roller bearings.
Main dimensions according to DIN 617. Needle roller bearings of the series NA69 are wider and heavier than needle roller bearings of the series NA49 and can thus support considerably higher radial loads. Needle roller bearings with an inner ring are used for applications where the shaft cannot be hardened and ground. The permissible axial displacement of the shaft relative to the housing is limited for bearings with an inner ring. If the permissible axial displacement provided by a standard inner ring is insufficient, it is possible to use an extended inner ring.
SERIES: NA6901, NA6901 2RS, NA6912, NA6912 2RS, NA69/22, NA69/22 2RS, NA69/32, NA69/32 2RS
Applications and industry: AGRICULTURE, AUTOMOTIVE, CEMENT INDUSTRY, CRUSHER INDUSTRY, HEAVY MACHINERY EQUIPMENTS, HOME APPLIANCES, MINING SECTOR, METAL INDUSTRY, FLUID MACHINERY, TEXTILE INDUSTRY
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 bearing for use under various conditions such as heavy loads and high-speed or low-speed rotations. In addition, 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.
Main dimensions according to DIN 617. Needle roller bearings of the series NA69 are wider and heavier than needle roller bearings of the series NA49 and can thus support considerably higher radial loads. Needle roller bearings with an inner ring are used for applications where the shaft cannot be hardened and ground. The permissible axial displacement of the shaft relative to the housing is limited for bearings with an inner ring. If the permissible axial displacement provided by a standard inner ring is insufficient, it is possible to use an extended inner ring.
SERIES: NA6901, NA6901 2RS, NA6912, NA6912 2RS, NA69/22, NA69/22 2RS, NA69/32, NA69/32 2RS
Applications and industry: AGRICULTURE, AUTOMOTIVE, CEMENT INDUSTRY, CRUSHER INDUSTRY, HEAVY MACHINERY EQUIPMENTS, HOME APPLIANCES, MINING SECTOR, METAL INDUSTRY, FLUID MACHINERY, TEXTILE INDUSTRY
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 bearing for use under various conditions such as heavy loads and high-speed or low-speed rotations. In addition, 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.
| Part Number | Dimension(mm) | |||
| d | F | D | B | |
| NA6901 | 12 | 16 | 24 | 22 |
| NA6902 | 15 | 20 | 28 | 23 |
| NA6903 | 17 | 22 | 30 | 23 |
| NA6904 | 20 | 25 | 37 | 30 |
| NA69/22 | 22 | 28 | 39 | 30 |
| NA6905 | 25 | 30 | 42 | 30 |
| NA69/28 | 28 | 32 | 45 | 30 |
| NA6906 | 30 | 35 | 47 | 30 |
| NA69/32 | 32 | 40 | 52 | 36 |
| NA6907 | 35 | 42 | 55 | 36 |
| NA6908 | 40 | 48 | 62 | 40 |
| NA6909 | 45 | 52 | 68 | 40 |
| NA6910 | 50 | 58 | 72 | 40 |
| NA6911 | 55 | 63 | 80 | 45 |
| NA6912 | 60 | 68 | 85 | 45 |
| NA6913 | 65 | 72 | 90 | 45 |
| NA6914 | 70 | 80 | 100 | 54 |
| NA6915 | 75 | 85 | 105 | 54 |
| NA6916 | 80 | 90 | 110 | 54 |
| NA6917 | 85 | 100 | 120 | 63 |
| NA6918 | 90 | 105 | 125 | 63 |
| NA6919 | 95 | 110 | 130 | 63 |