Power of attacks by bearer with an additional effect is multiplied by 1.3. No additional effects of attacks by the bearer can occur. Recoil, user stat penalties, increased critical hit ratio, perfect accuracy, and variable-power attacks are primary effects and so moves with these effects are not boosted by Sheer Force. Secondary effects include Shell Bell and Life Orb for the bearer and Red Card and Eject Button for the non-bearer. Color change also does not trigger.
Perhaps this needs some para-phrasing?
From what I know (iirc), Life Orb recoil is only negated if the move that is used is being boosted by Sheer Force. That means that if a Feraligatr with Sheer Force and Life Orb uses a move like Surf, it will receive the Life Orb boost but recoil will still happen as usual. The description saying secondary effects include Life Orb for the bearer is misleading. UNLESS IT WORKS THE OTHER WAY ROUND