Seepex BN 5-12 Series, Operation & Maintenance Manual

Page: 96 / 309

R-001-04
Page 1 of 4
Date: 7-2003
R-001-03
Technical Note
R-Series Gear Reducer
Features
The SEW-Eurodrive R-Series gear reducer contains a
solid shaft and 1, 2 or 3 helical gear stages.
Additional features are shown below.
1.
SAE Class 30 or equivalent (GG20) gray
cast iron housing and flanges (except
R07/17/27). No bolt-on bearing covers.
2.
Finish ground or shaved steel gears
heat-treated and hardened to 58-62
Rockwell C
3.
ABEC-1 bearing tolerances
4.
SAE 1045 steel shafts; optional SAE 304
stainless steel shafts for food
processing applications
5.
Input and output shafts available in
either inch or metric sizes and contain a
center tapped hole to ease mounting
components onto the shaft
6.
Exclusive interlocking 2-piece seal
design consisting of a patented bi-helix
Viton

inner seal and a double-lip Nitrile
(Buna N) outer seal – provides three
sealing surfaces against contaminants
7.
Removable inspection cover
8.
Oil level and breather plugs strategically
placed according to the customer’s
mounting position
9.
Captured keys on input and output
shafts
10.
Corrugated surface improves heat
dissipation and reduces vibration
R-Series
5
1
9
4
6
3
8
7
8
2
10