● System Active
BELTCALC BELT DRIVE SELECTION CALCULATOR
◯
V-Belt
⎯
Flat Belt
⚙
Timing Belt
★ Recommended Belt V-Belt — Section B
Top Width
17
mm
Rated Power
—
kW/belt
Min Pulley
125
mm dia
No. of Belts
—
required
Design Power
—
kW
Speed Ratio
—
VR = D₂/D₁
Belt Speed
—
m/s
Belt Length
—
mm
Actual Centre Dist.
—
mm
Computing...
Wrap Angle
—
° (min 120°)
Power/Belt
—
kW
Kθ Factor
—
wrap corr.
Slip Loss
—
%
Belt Drive Layout
Open Drive
Cross Drive
Belt Section
Belt Section (V-Belt ANSI/IS)
Belt Section Section B — 17 mm
Power & Speed Inputs
Input Power (P) 5.0 kW
0.1150300
Driver Speed (N₁) 1450 RPM
10018503600
Driven Speed (N₂) 500 RPM
5015253000
Pulley Specification
Driver Pulley Dia (D₁) 150 mm
50425800
Desired Centre Distance (C) 500 mm
10015503000
Slip (%) 2%
0%2.5%5%
Service Conditions
Drive Type / Application Medium Shock
Operating Hours/Day 10–16 hrs
Service Factor (Ks) 1.3
Application8–10 h/day10–16 h/day16–24 h/day
Light (fans, centrifugal pumps)1.01.11.2
Medium (compressors, conveyors)1.21.31.4
Heavy (crushers, mills)1.41.51.8
Belt Profiles Comparison
SectionWidthDepthMin PDPower Range
Formula Reference
VR VR = N₁/N₂ = D₂/D₁  ·  D₂ = D₁ × N₁/N₂ (1−s)
DESIGN P Pd = P × Ks  ·  Ks = service factor
SPEED v = π D₁ N₁ / 60000  (m/s)  ·  vmax = 25 m/s
LENGTH L = 2C + π(D₂+D₁)/2 + (D₂−D₁)²/4C
WRAP θ θ = 180° − 60°(D₂−D₁)/C  ·  Kθ = 1−0.5123e−θ/3.14
N BELTS N = Pd / (Prated × Kθ × KL)