Task
Junction
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CHAIN
CALC
CHAIN DRIVE SELECTION CALCULATOR
SI · METRIC
IMP · USC
🔗 Recommended Chain
ANSI 50
Pitch
15.875
mm
Rated Power
—
kW
Max Speed
—
RPM
Break Load
—
kN
Design Power
—
kW
Trans. Ratio
—
i = n₁/n₂
Chain Velocity
—
m/s
Chain Length
—
pitches
Actual Centre Dist.
—
mm
Computing...
Safety Factor
—
n (min 7)
Wrap Angle
—
° (min 120°)
Sprocket Teeth
—
z₁ / z₂
Chain Drive Layout
Chain Standard (ANSI / ISO)
Chain Pitch
ANSI 50 — 15.875 mm
Power & Speed Inputs
Input Power (P)
5.0 kW
0.1
100
200
Driver Speed (n₁)
1450 RPM
50
1525
3000
Driven Speed (n₂)
480 RPM
50
1025
2000
Sprocket Specification
Driver Sprocket Teeth (z₁)
19
17
31
45
Desired Centre Distance
400 mm
100
1050
2000
Service Conditions
Load Type
Moderate Shock
Operating Hours/Day
10–16 hrs
Lubrication Type
Drip / Oil Bath
Service Factor (K
s
)
1.40
Load Type
8–10 h/day
10–16 h/day
16–24 h/day
Smooth
1.0
1.25
1.50
Mod. Shock
1.25
1.40
1.75
Heavy Shock
1.50
1.75
2.00
Formula Reference
RATIO
i = n₁/n₂ = z₂/z₁ · z₂ = z₁ × i
DESIGN P
P
d
= P × K
s
× K
lube
· K
s
= service factor
VEL
v = z₁ × n₁ × p / 60000 (m/s)
LENGTH
L = 2C/p + (z₁+z₂)/2 + (z₂−z₁)² × p / (4π²C) (pitches)
SAFETY
n = F
break
/ F
working
· F
w
= P
d
×1000/v (min n=7)
📚 Recommended Resource
📖
Amazon
R.S. Khurmi — Theory of Machines & Machine Design
The most trusted mechanical engineering reference book for Indian students & professionals. Covers gears, springs, shafts, belts, chains and more — everything this calculator is based on.
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