500 Class DFC FBL Metal Main Shaft Bearing Block Sale! from 1562 /per Qty. Add to Cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. These metal main shaft blocks are a great replacement for the 500 class helicopter Qty available:3 SKU:GT500-F015