Brake Units: General Disc Brake Calculations

General Disc Brake Calculations

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J_m moment of inertia AC-motor
Power	Moment of inertia kgm² for different RPM
kW	3000	1500	1000	750
11	0.055	0.065	0.1	0.25
22	0.13	0.24	0.33	0.73
30	0.19	0.35	0.73	0.9
45	0.31	0.43	1.2	1.7
55	0.6	0.7	1.5	2.4
75	1.2	1.2	2.4	3.2
90	1.4	1.4	2.9	4.0
110	2.2	2.0	3.5	6.0
250	3.7	5.6	9.1	13.0

INPUT VALUES

Friction Coefficient Clamping Force [N] Clamp Radius [m] Brake Time [sec]

Number of Callipers Allowable Overspeed [%] Moment Of Inertia [Kgm²]
From Table A Belt Speed [m/sec]

Motor Speed [revs/sec] Disk Speed [revs/sec] Disk Dia [m] Disk Thickness [m]

Temp Factor
From Graph B Braking Cycles/Hour Ambient Temp [deg] Future []

OUTPUT VALUES

Friction Force

N

Braking Force

N

Torque

N.m

Moment of Inertia for Disc

Kgm²

Mass

Kg
Moment of Inertia Total

Kgm²m

Brake Torque

N.m

Load Torque

N.m

W2

Revs/sec
MR

N.m

Tx

m
Tdisk

deg

Friction Coefficient	Clamping Force [N]	Clamp Radius [m]	Brake Time [sec]

Number of Callipers	Allowable Overspeed [%]	Moment Of Inertia [Kgm²] From Table A	Belt Speed [m/sec]

Motor Speed [revs/sec]	Disk Speed [revs/sec]	Disk Dia [m]	Disk Thickness [m]

Temp Factor From Graph B	Braking Cycles/Hour	Ambient Temp [deg]	Future []

Friction Force	N	Braking Force	N
Torque	N.m	Moment of Inertia for Disc	Kgm²
Mass	Kg	Moment of Inertia Total	Kgm²m
Brake Torque	N.m	Load Torque	N.m
W2	Revs/sec	MR	N.m
Tx	m	Tdisk	deg