ROLLCO’S STANDARDTOLERANCER
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Standard tolerances Rollco; applies to items machined in lathe, milling- or cutting machine |
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Area |
What |
Rollco standard in the case of absence of information |
Links |
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Tolerance setting |
Dimension, shape and location |
ISO 2768-1 m, ISO 2768-2 K |
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Radius |
R=0,4 |
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Chamfers |
1*45 |
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Depth of drilled hole to be threaded |
Length of drilled hole=length of thread+5mm |
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Depth of thread |
2*thread diameters |
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Hardness HRC |
Hardness |
According to supplier specification |
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Surface finish |
Surface roughness/machined surface |
Ra 1,2 |
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Cutted surface |
Ra 6,3 |
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Keyway std. |
Dimension of keyhole: width, deep tolerance |
SMS 2305 / DIN6885 |
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Thread release |
Dimension |
Length=1,5*lead, Dia.=thread OD-(1,5*lead) |
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Thread |
Dimension tolerances |
6g outer, 6H inner (ISO 965-2) |
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Bearing seating |
Axial fixed bearing |
j6 (ISO 286-2) |
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Support bearing |
j6 (ISO 286-2) |
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Drive shaft |
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h7 |
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Circlip |
Dimension |
Din 471 |
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Shaft center hole |
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If necessary, center holes are used in the shaft ends |
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Cutting and assembly |
Other products; Aluminium Profiles, Telescopic Rails, Linear unit RHL & QME, Ballscrew Clearance |
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