RRS/RRSC Type – Radially Removable Spacer Coupling

Center “drop out” to provide proper shaft separation
Easy elastomer installation (no disturbing hubs or realignment)
Accommodates American and European industry standard pump/motor shaft separations
Spacer is made of glass reinforced plastic, cast iron, or aluminum

RRS/RRSC Type – Radially Removable Spacer Coupling Additional Resources

A full RRS coupling is comprised of the components:

RRS090-RRS110:

2 Standard RRS Hubs
1 Spacer Assembly
- 2 snap wrap spiders w/o ring
- 2 collars with screws
- 1 spacer

RRS150-RRS225

1 Standard RRS Hub
1 Standard RRSC Hub (drilled for collar)
1 Spacer Assembly
- 2 snap wrap spiders w/o ring
- 2 collars with screws
- 1 spacer

For a broad overview on Lovejoy jaw couplings, please consider reading: Jaw Coupling Overview – Features & Benefits, Design Basics, and Element Options.
While Lovejoy jaw couplings are designed to handle a lot of abuse, the jaw coupling elastomeric spider is a wearing element that will eventually need to be replaced. To review how and why jaw couplings wear out, please read: Coupling Failure Analysis – Jaw Couplings (includes hub & spider photos).
Estimating the life of a jaw coupling is difficult as it is application specific. To dive deeper into this question, check out: Jaw Coupling Question – “How Much Life Can I Expect Out of the Spider”.
Lovejoy L line jaw coupling hubs through size L150 are manufactured out of sintered iron. This is a well proven technology that has been used by Lovejoy for decades and can be re-bored locally similar to other standard coupling hub materials. Should you have any further concerns, please see the following article: Can I Rebore Sintered Iron Coupling Hubs?
And, because it has an interesting back story and is a fairly common question we get asked: What do Lovejoy jaw coupling numerical sizes stand for?

Have a coupling topic that you’d like to see covered on the CouplingAnswers.com blog? Let us know!

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