窄V带长度系数kL
基准长度
Ld /mm
SPZ
SPA
SPB
SPC
630
0.82
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710
0.84
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800
0.86
0.81
---
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900
0.88
0.83
---
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1000
0.90
0.85
---
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1120
0.93
0.87
---
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1250
0.94
0.89
0.82
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1400
0.96
0.91
0.84
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1600
1.00
0.93
0.86
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1800
1.01
0.95
0.88
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2000
1.02
0.96
0.90
0.81
2240
1.05
0.98
0.92
0.83
2500
1.07
1.00
0.94
0.86
2800
1.09
1.02
0.96
0.88
3150
1.11
1.04
0.98
0.90
3550
1.13
1.06
1.00
0.92
4000
1.08
1.02
0.94
4500
1.09
1.04
0.96
5000
---
1.06
0.98