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zzzzsleepy8 · March 18th, 2014, 20:32

Actually, I think its the end stages of the spring compression that is causing higher stresses on the bearings. When you first begin to compress the spring, the force is low and gets higher as you compress the spring further. Hence also why I think cheap pistons have metal racks at the end of the piston (before its released to shoot air out of nozzle) instead of having metal on the full rack.

Sure there is an impulse force upon engaging the rack during the initial spring compression, but the gears probably don't spin fast enough to create as large a force compared to the fully compressed spring pushing back against the gears.

March 18th, 2014, 20:32	#54
zzzzsleepy8 Trader rating Join Date: Jan 2014	Actually, I think its the end stages of the spring compression that is causing higher stresses on the bearings. When you first begin to compress the spring, the force is low and gets higher as you compress the spring further. Hence also why I think cheap pistons have metal racks at the end of the piston (before its released to shoot air out of nozzle) instead of having metal on the full rack. Sure there is an impulse force upon engaging the rack during the initial spring compression, but the gears probably don't spin fast enough to create as large a force compared to the fully compressed spring pushing back against the gears. Last edited by zzzzsleepy8; March 18th, 2014 at 20:54..