Ronstan Ball Bearing Utility Blocks - Series 15 - Singel Block, Swivel Hook Head ronstan orbit blocks - series 100 - single universal head O - Ring and mounting

O - Ring and mounting bolts

The patented clamp allows for seamless attachment and detachment

Both inlet and outlet ports can be used for high volume oil flow

two styles available to suit 1" or 7/8" diameter Prop shafts

Includes 2 x Caps

Ronstan Ball Bearing Utility Blocks - Series 15 - Singel Block, Swivel Hook Head ronstan orbit blocks - series 100 - single universal head O - Ring and mountingSmallest and lightest ball bearing block available Precision moulded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include an O ring to separate running line from head lashing or fixing