C Style Couplings
The C Kind coupling includes two standard hubs, a single cushion set and collar with hardware.
Attributes
Higher torque and bore capacity compared to the L-Line series jaw coupling
Elastomeric cushions are radially removable
Cushions 
readily available in SXB rubber and Hytrel
RRS and RRSC Variety Radially Removable Spacer Couplings
RRS Type couplings selection from sizes RRS090 to RRS225. The RRS Type
coupling includes:
RRS090 – RRS110:
2 Standard RRS Hubs
1 Spacer Assembly consisting of:
2 snap wrap spiders w/o ring
two collars with screws
one spacer
RRS150 – RRS225:
1 Standard RRS Hub
1 Typical RRSC Hub – Drilled for collar
one Spacer Assembly consisting of:
2 snap wrap spiders w/o ring
2 collars with screws
one spacer
Note:
RRS Style Inch Hubs supplied normal with two set screws at 90°.
Attributes
Conventional API based mostly spacers readily available
Radially removable inserts
Typical Lovejoy hub style and design with added set screw at 90°