n6 tolerance (shaft) — limit deviations

Upper and lower limit deviations of shaft tolerance class n6 (shafts use lower-case letters), in µm (0.001 mm). Add them to the nominal size to get the permitted size range. Example: a Ø25 n6 shaft must be between 25.015 and 25.028 mm.

▤n6 limit deviations (µm)

Nominal size (mm)UpperLowerToleranceCalc
up to 3+10+46→
over 3 to 6+16+88→
over 6 to 10+19+109→
over 10 to 14+23+1211→
over 14 to 18+23+1211→
over 18 to 24+28+1513→
over 24 to 30+28+1513→
over 30 to 40+33+1716→
over 40 to 50+33+1716→
over 50 to 65+39+2019→
over 65 to 80+39+2019→
over 80 to 100+45+2322→
over 100 to 120+45+2322→
over 120 to 140+52+2725→
over 140 to 160+52+2725→
over 160 to 180+52+2725→
over 180 to 200+60+3129→
over 200 to 225+60+3129→
over 225 to 250+60+3129→
over 250 to 280+66+3432→
over 280 to 315+66+3432→
over 315 to 355+73+3736→
over 355 to 400+73+3736→
over 400 to 450+80+4040→
over 450 to 500+80+4040→

⊂⊃Common fits that use this class

Partners of n6 in the preferred fits of JIS B 0401 (1998), the Japanese counterpart of ISO 286. Click one to open it in the calculator.

📚Sources

We compared the technical documents below and use values that agree in at least two of them.

  1. MISUMI jp.misumi-ec.com
  2. NBK (Nabeya Bi-tech) fujiikougyou.sakura.ne.jpfujiikougyou.sakura.ne.jpfujiikougyou.sakura.ne.jp
  3. Mitsubishi Materials mitsubishicarbide.netmitsubishicarbide.net
  4. OSG osg.co.jp
  5. NSK nsk.com
  6. Miki Pulley mikipulley.co.jpmikipulley.co.jp
  7. Tsubakimoto Chain tt-net.tsubakimoto.co.jp
  8. KHK (Kohara Gear) khkgears.co.jpkhkgears.co.jp

Other shaft tolerance classes

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