Spur gears steel, milled - Nozag AG
Spur gears steel, milled - Nozag AG
Spur gears steel, milled - Nozag AG
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22.<br />
For the mounting of chain drives<br />
186<br />
Guidelines<br />
Permissible rpm’s «n» and speed «v» for different lubrication<br />
types with z1 =19<br />
Chain pitch Inch – – 3 ⁄8 1 ⁄2 5 ⁄8 3 ⁄4 1 11 ⁄ 4 11 ⁄ 2 13 ⁄ 4 2 21 mm 6.0 8.0 9.525 12.7 15.875 19.05 25.4 31.75 38.1 44.45 50.8<br />
⁄ 2<br />
63.5<br />
3<br />
76.2<br />
Manual Lubrication n U/min<br />
tr/min 525 345 260 170 120 90 55 40 30 25 20 15 10<br />
v m/s 1.0 0.9 0.8 0.7 0.6 0.54 0.45 0.40 0.35 0.34 0.31 0.28 0.25<br />
Drip lubrication n U/min<br />
tr/min 2700 2000 1700 970 630 440 240 165 115 85 65 42 30<br />
v m/s 5.1 5.1 5.1 3.9 3.2 2.65 1.90 1.65 1.40 1.20 1.05 0.85 0.72<br />
Dip feed lubrication n U/min<br />
tr/min 5200 4000 3250 2060 1470 1090 700 500 370 300 235 170 125<br />
v m/s 10 10 9.8 8.3 7.4 6.6 5.6 5.0 4.5 4.3 3.8 3.4 3.0<br />
Further specifications, see page 176<br />
Lubricant<br />
A Mineral oil without HP-additions should be used as a lubricant according<br />
to the table below.<br />
Room temperature °C SAE No.<br />
- 5 bis + 25 30<br />
25 bis 45 40<br />
45 bis 60 50<br />
The lubricant can only fulfil its requirements if it gets between pin and bush<br />
in the chain links. The oil should enter between outside and inside link plates.<br />
The lubrication of the chain with grease is without effect because it can not<br />
enter into the links.<br />
Mounting the chain wheels<br />
The chain wheels have to be in alignment with the<br />
plane of the chain. This can be checked with a straight<br />
edge following the adjoining sketch. The two shafts<br />
have to be parallel to each other; this means the inclination<br />
and twist should be kept to a minimum.<br />
Further machining of standard chain<br />
wheels and plates<br />
Spirit<br />
As long as an exact eccentricity is needed in the<br />
bores, the chain wheels or plates should be centred over the toothing.<br />
If larger quantities are to be processed, then a centring ring with several pins<br />
on the pitch circle diameter is to be used. The pin size corresponds (small<br />
deviation allowed) to the roller diameter of the chain.<br />
For smaller quantities, pins can be placed in the toothing, see sketch below.<br />
Chuck jaws<br />
© by <strong>Nozag</strong> Switzerland - 2009<br />
Loose pins<br />
Ruler<br />
centring ring<br />
Spirit
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