1)LooknutsAre a help in fixing bearing on a shaft or on an adapter sleeve
Also used in assembling and disassembling bearings on tapered shaft necks.
2)Lock washer Are used to protect locknuts.
Other Needle Roller Bearings Series
needle rollers bearing can bear greater radial load and there are ones with inner ring and without inner ring. G2 needle rollers are installed, the tolerance of the average diameter is within 2um. Rigidity holders are adopted to correctly lead the needle rollers to be parallel with the axes.
Main Structure Style
| Bearing No. |
Characteristics of Structure |
| NK NKS RNA49 RNA48 |
Double Edge Match of Outer Ring, Single Line, Without Inner Ring |
| NKI NKIS NA49 NA48 |
Double Edge Match of Outer Ring, Single Line, With Inner Ring |
| RNA69 |
Double Edge Match of Outer Ring, Double Lines, Without Inner Ring |
| NA69 |
Double Edge Match of Outer Ring, Double Lines, With Inner Ring. |
| RNA49..RS RNA49..2RS |
Single or Double Surface Airproofing Double Lines |
| NA69.. RS NA69..2RS |
Single or Double Surface Airproofing Double Lines. |
| RNAO |
Outer Ring without capped edge, single line or double lines, without inner ring |
| NAO |
Outer Ring without capped edge, single line or double lines, with inner ring. |
| RNAV |
Double capped edge of outer ring, single line, without inner ring |
| NAV |
Double capped edge of outer ring, single line, with inner ring |
| |
| Series |
Explanation |
| NK |
Non- inner ring needle bearing, light series |
| NKS |
Non- inner ring needle bearing, heavyseries |
| RNA 49 |
Non- inner ring needle bearing, size series 49 |
| RNA 69 |
Non- inner ring needle bearing, size series 69,Pair Row (Odd Row to RNA 6906) |
| RNA 48 |
Non- inner ring needle bearing, size series 48 |
| NKI |
with Inner ring needle bearing, light series |
| NKIS |
with Inner ring needle bearing, heavy series |
| NA 49 |
inner ring needle bearing, size series 48 |
| NA 69 |
Non- inner ring needle bearing, size series 48,Pair Row (Odd Row to NA 6906) |
| NA 48 |
with Inner ring needle bearing, size series48 |
| RNA 49..RS |
with out Inner ring needle bearing,Directly Seal ,Size series 49 |
| RNA 49..2RS |
with out Inner ring needle bearing,One-sided seal ,Size series 49 |
| NA 49..RS |
with Inner ring needle bearing,Directly Seal ,Size series 49 |
| NA 49..2RS |
with Inner ring needle bearing,Two-sided seal ,Size series 49 |
|
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