NORD Drivesystems B1000 - Manual (Page 62)

www.nord.com
INTRODUCTION
A60 G1000 – Subject to Change Without Notice
Reducer
Tolerances
Solid Shaft Diameter Tolerance [in]
> 0.375 ≤ 1.750 +0.0000 / -0.0005
> 1.750 ≤ 7.500 +0.0000 / -0.0010
All Keys and Keyways: Inch - ANSI B17
Solid Shaft Drill & Tap Shaft End - Threaded Holes [in]
> ш 0.375 ≤ ш 0.500 10-24 x 0.43
> ш 0.500 ≤ ш 0.875 1/4-20 x 0.59
> ш 0.875 ≤ ш 0.938 5/16-18 x 0.71
> ш 0.938 ≤ ш 1.100 3/8-16 x 0.87
> ш 1.100 ≤ ш 1.300 1/2-13 x 1.10
> ш 1.300 ≤ ш 1.875 5/8-11 x 1.42
> ш 1.875 ≤ ш 3.500 3/4-10 x 1.73
> ш 3.500 ≤ ш 7.500 1-8 x 2.20
Keyed Hollow Bore Tolerances [in]
> ш 0.4375 ≤ ш 1.6250 +0.0010 / -0.0000
> ш 1.6250 ≤ ш 3.2500 +0.0012 / -0.0000
> ш 3.2500 ≤ ш 7.0000 +0.0014 / -0.0000
Suggested Solid Shaft Tolerances for Keyed Hollow Bore [in]
Uniform Load Shock Load
> ш 0.4375 ≤ ш 0.8750 +0.0000 / -0.0005 +0.0000 / +0.0005
> ш 0.8750 ≤ ш 4.5000 +0.0000 / -0.0010 +0.0000 / +0.0010
> ш 4.5000 ≤ ш 7.0000 +0.0000 / -0.0012 +0.0000 / +0.0015
Customer Shaft Diameter Tolerance w/ Shrink Disk [in]
Shaft Diameter Shaft Tolerance  Bore Tolerance 
≥ ш 0.4375 ≤ ш 0.6875 +0.0000 / -0.0004 +0.0007 / -0.0000
≥ ш 0.7500 ≤ ш 1.1250 +0.0000 / -0.0005 +0.0008 / -0.0000
≥ ш 1.1250 ≤ ш 1.9375 +0.0000 / -0.0006 +0.0009 / -0.0000
≥ ш 2.0000 ≤ ш 3.1250 +0.0000 / -0.0007 +0.0011 / -0.0000
≥ ш 3.1875 ≤ ш 4.6875 +0.0000 / -0.0008 +0.0013 / -0.0000
≥ ш 4.7500 ≤ ш 7.0625 +0.0000 / -0.0009 +0.0015 / -0.0000
≥ ш 7.1250 ≤ ш 7.5000 +0.0000 / -0.0011 +0.0018 / -0.0000
Inch Shaft Tolerances per ISO286-2, Class h6
Inch hollow bore tolerances per ISO286-2, Class H7
• Solid Shaft fi nish to be 125 micro inches (3.2mm) or smoother
Flange Pilot (AK or AK1) Tolerance [in]
Flange Pilot Diameter Pilot Tolerance Fit Class 
> ш 1.969 ≤ ш 3.150 +0.0005 / -0.0003 j6
> ш 3.150 ≤ ш 4.724 +0.0005 / -0.0004 j6
> ш 4.724 ≤ ш 7.087 +0.0006 / -0.0004 j6
> ш 7.087 ≤ ш 9.055 +0.0000 / -0.0005 h6
> ш 9.055 ≤ ш 9.843 +0.0000 / -0.0011 h6
> ш 9.843 ≤ ш 12.402 +0.0000 / -0.0013 h6
> ш 12.402 ≤ ш 15.748 +0.0000 / -0.0014 h6
> ш 15.748 ≤ ш 19.685 +0.0000 / -0.0016 h6
Inch Pilot Tolerances per ISO286-2
Solid Shaft Diameter Tolerance [mm]
> 10 ≤ 18 +0.012 / +0.001
> 18 ≤ 30 +0.015 / +0.002
> 30 ≤ 50 +0.018 / +0.002
> 50 ≤ 80 +0.030 / +0.011
> 80 ≤ 120 +0.035 / +0.013
> 120 ≤ 180 +0.040 / +0.015
> 180 ≤ 190 +0.046 / +0.017
All Keys and Keyways: Metric - DIN 6885, class m6
Solid Shaft Drill & Tap Shaft End - Threaded Holes [mm]
> ш 10 ≤ ш 13 M4 x 10
> ш 13 ≤ ш 16 M5 x 12.5
> ш 16 ≤ ш 21 M6 x 16
> ш 21 ≤ ш 24 M8 x 19
> ш 24 ≤ ш 30 M10 x 22
> ш 30 ≤ ш 38 M12 x 28
> ш 38 ≤ ш 50 M16 x 36
> ш 50 ≤ ш 85 M20 x 42
> ш 85 ≤ ш 130 M24 x 50
> ш 130 ≤ ш 190 M30 x 60
Keyed Hollow Bore Tolerances [mm]
> ш 10 ≤ ш 18 +0.018 / -0.000
> ш 18 ≤ ш 30 +0.021 / -0.000
> ш 30 ≤ ш 50 +0.025 / -0.000
> ш 50 ≤ ш 80 +0.030 / -0.000
> ш 80 ≤ ш 120 +0.035 / -0.000
> ш 120 ≤ ш 180 +0.040 / -0.000
> ш 180 ≤ ш 190 +0.035 / -0.000
Metric hollow bore tolerances per ISO286-2, Class H7
Suggested Solid Shaft Tolerances for Keyed Hollow Bore [mm]
Uniform Load  Shock Load 
> ш 10 ≤ ш 18 +0.000 / -0.011 +0.012 / +0.001
> ш 18 ≤ ш 30 +0.000 / -0.013 +0.015 / +0.002
> ш 30 ≤ ш 50 +0.000 / -0.016 +0.018 / +0.002
> ш 50 ≤ ш 80 +0.000 / -0.019 +0.021 / +0.002
> ш 80 ≤ ш 120 +0.000 / -0.022 +0.025 / +0.003
> ш 120 ≤ ш 180 +0.000 / -0.025 +0.028 / +0.003
> ш 180 ≤ ш 190 +0.000 / -0.029 +0.033 / +0.004
Uniform load: Mating shaft diameter tolerance per ISO286-2, class h6
Shock load: Mating shaft diameter tolerance per ISO286-2, class k6
Customer Shaft Diameter Tolerance w/ Shrink Disk [mm]
Shaft Diameter Shaft Tolerance  Bore Tolerance 
> ш 10 ≤ ш 18 +0.000 / -0.011 +0.018 / -0.000
> ш 18 ≤ ш 30 +0.000 / -0.013 +0.021 / -0.000
> ш 30 ≤ ш 50 +0.000 / -0.016 +0.025 / -0.000
> ш 50 ≤ ш 80 +0.000 / -0.019 +0.030 / -0.000
> ш 80 ≤ ш 120 +0.000 / -0.022 +0.035 / -0.000
> ш 120 ≤ ш 180 +0.000 / -0.025 +0.040 / -0.000
> ш 180 ≤ ш 190 +0.000 / -0.029 +0.046 / -0.000
Metric Shaft Tolerances per ISO286-2, Class h6
Metric hollow bore tolerances per ISO286-2, Class H7
• Solid Shaft fi nish to be 125 micro inches (3.2mm) or smoother
Flange Pilot (AK or AK1) Tolerance [mm]
Flange Pilot Diameter Pilot Tolerance Fit Class 
> ш 50 ≤ ш 80 +0.012 / -0.007 j6
> ш 80 ≤ ш 120 +0.013 / -0.009 j6
> ш 120 ≤ ш 180 +0.014 / -0.011 j6
> ш 180 ≤ ш 230 +0.000 / -0.013 h6
> ш 230 ≤ ш 250 +0.000 / -0.029 h6
> ш 250 ≤ ш 315 +0.000 / -0.032 h6
> ш 315 ≤ ш 400 +0.000 / -0.036 h6
> ш 400 ≤ ш 500 +0.000 / -0.040 h6
Metric Pilot Tolerances per ISO286-2
Casting Surfaces may differ slightly (approximately 0.125 inches or 3.2mm) from the specifi ed nominal dimensions as a result of the manufacturing process