
Parker Hannifin Corporation
Automation Actuator Division
Wadsworth, Ohio
6
Automation
PM-ER01/USA ER Series Rodless Actuator
Maintenance Instructions and Parts List
Drive Ratio Availability
Step Motors and DC Brush Motors
Drive Ratio
Size 1:1 1:1.5 1.5:1 2:1
ERS/D32 2 2 — —
ERS/D50 2 & 3 — 2 & 3 2
ERS/D80 3 & 4 — 3 & 4 3
Model Code
Frame Size
2NEMA 23 (ER32, ER50)
3NEMA 34 (ER50, ER80)
4NEMA 42 (ER80)
9Special
Profile Size
32 32 mm
50 50 mm
80 80 mm
Series/Motor Type
ERS Stepper
ERB Servo
ERD DC Brush
Drive Type Available Sizes
A04 Acme Screw, 0.250 in lead ER32, 80
A05 Acme Screw, 0.200 in lead ER50
A08 Acme Screw, 0.125 in lead ER32
B01 Ball Screw, 1.000 in lead ER50, 80
B02 Ball Screw, 0.500 in lead ER50, 80
B04 Ball Screw, 0.250 in lead ER80
B05 Ball Screw, 0.200 in lead ER50
B08 Ball Screw, 0.125 in lead ER32
BLT Belt Drive All
ERS 50 – B05 R A 21 –
Motor Mounting Style – Screw Drive
LInline Motor Mounting
MParallel with Timing Belt, Motor Position 2
NParallel with Timing Belt, Motor Position 3
QParallel with Timing Belt, Motor Position 4
RReverse Parallel with Timing Belt, Motor Position 1
SReverse Parallel with Timing Belt, Motor Position 2
TReverse Parallel with Timing Belt, Motor Position 3
VReverse Parallel with Timing Belt, Motor Position 4
Motor Mounting Style – Belt Drive
RDirect Drive, Drive Right
LDirect Drive, Drive Left
M* Parallel with Timing Belt, Over Right
NParallel with Timing Belt, Under Right
S* Parallel with Timing Belt, Over Left
TParallel with Timing Belt, Under Left
VReverse Parallel with Timing Belt, Over Right
WReverse Parallel with Timing Belt, Under Right
YReverse Parallel with Timing Belt, Over Left
ZReverse Parallel with Timing Belt, Under Left
JReverse Parallel with Timing Belt, Rear Right
KReverse Parallel with Timing Belt, Rear Left
Drive Ratio
(See Tables Below for Availability)
A1:1 (Inline or Parallel)
B1.5:1 (Parallel)
D2:1 (Parallel)
Z1:1.5 (Parallel, ER32 only)
Option
0No Motor, Flange and Coupler/Pulley Only
1Std. Motor, Cable Grommet w/o Damper
2Std. Motor, Conduit Connector w/o Damper
3Std. Motor, Brad Harrison Connector, w/o Damper
4* Std. Motor, Cable Grommet w/ Damper
5* Std. Motor, Conduit Connector w/ Damper
6* Std. Motor, Brad Harrison Connector w/ Damper
9Used w/Frame Size 9, Special Motor to be Mounted
XUsed with Frame Sizes 2, 3, 4, Other Parker Motor
Step Motor and DC Brush Motor
* Not available with motor
codes 2n for ERB32 and
motor codes 6n and Jn
forERB50
* Step motors only.