I can't imagine an R22 has enough power to do a level 60 degree turn (2G) at constant speed
However it is not the G at the rotor head that is important, it is the stress felt at the end of the long lever which is the tail boom that is critical - the rotor head drags the fuselage behind it which drags the tail boom and the TRGB and TR. Your rotor system may be capable if producing high loadings with little damage to the rotor but it is the rest of the aircraft you have to worry about.
All the engineering penalties for display manoeuvres on the Lynx took life off the TR and its components - not the MRH.