... 94–5ring rolling 178rocker arm 111, 113, 128 , 129 –30roller bearing 129 –30needle roller bearing 169, 178, 209–10, 212 18, 219rolling 223ring rolling 178rolling contact fatigue failure 212 rolling ... 100quenching 263, 294–5carburizing 180, 183, 186quenching cracks 183reciprocating engine 1–5advantages and disadvantages 5see also diesel engines; four-stroke engines; two-stroke engines recovery ... 59–65reinforcement of piston ring groove 72–6use of silicon to decrease thermal expansion of aluminum 58–9piston curve 65–7piston pin 1, 7, 54, 55piston ring 1, 6, 7, 54, 55, 87–109designing the...