Single plain bearing block - Sheave 25 - Swivel head
Single plain bearing block - Sheave 25 - Fixed eye
Single plain bearing block - Sheave 25 - Fixed eye & becket
Single plain bearing block - Sheave 25 - Cheek block
Single plain bearing block - Sheave 25 - Upright lead block
Single plain bearing block - Sheave 25 - Opposite in line
