# Shaft with one keyway

## Values for calculation

## Calculation

### Coefficient $ C_1 $

### Coefficient $ C_2 $

### Coefficient $ C_3 $

### Coefficient $ C_4 $

### Coefficient $ C $

### Coefficient $ B_1 $

### Coefficient $ B_2 $

### Coefficient $ B_3 $

### Coefficient $ B_4 $

### Coefficient $ B $

### Polar moment of inertia

### Angle of twist

### Torsion stress at $ M $

## Requirements

$$ 0.2 \le\cfrac{b}{r} \le 0.5 $$**On this page**