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