Accessories
Mating Connectors
Synchro-Clamps
Synchro clamps are used
with servo-style bearing
housings ("E" style hous-
ings on the encoder
model number designa-
tion) to hold the face of
the encoder against a
mounting plate. Clamps are
placed at a radius slightly larger
than the encoder mounting flange,
(see illustration below) and allow for rotational alignment
of the encoder during installation for machine set-up.
CLAMP MATERIAL:
316 STAINLESS STEEL
L
MS3106 MATING CONNECTORS
(Used on Incremental Encoders)
These have sealed conductors and are screw-on, military-style
connectors with solder cups on the back of the pins (can accept
up to 16 gage wire) and a built-in clamping strain relief. The
environmentally sealed backshell is waterproof.
Shell Size Used with
MS14
MS16
MS18
MS20
EM14 or SM14
EM16 or SM16
EM18 or SM18
EM20 or SM20
L Max #of Pins BEI Part No.
2.125"
2.187"
2.656"
2.656"
6
7
10
17
MS3106F14S-6S
MS3106F16S-1S
MS3106F18-1S
MS3106F20-29S
4-40 UNC CRES
SCREW, PHILLIPS
PANHEAD
3/8"
GRIP "C"
BOLT CIRCLE DIA =
ENCODER FLANGE DIA + .270"
(i.e. H25E = 2.770 DIA B.C.)
Grip “C”
.093
.125
Encoder Type
H25E or H20E
H25G
BEI Part No. (3-Piece Kit)
924-31165-001
924-31165-002
MS3116 MATING CONNECTOR
(Used on 12-Bit Absolute Encoders)
These have sealed conductors and use a bayonet (push and turn)
shell. Pins have solder cups on the back for 20 gage wire and a
built-in clamping strain relief. The environmentally sealed back-
shell is waterproof.
Shell Size Used with
MS14
L Max #of Pins BEI Part No.
19
MS3116F14-19S
SM14/19 or EM14/19 1.800
42
Cable Assemblies for Incremental Encoders
Cable assemblies for incremental encoders are built using high quality custom BEI
Standard Cable (P/N 37048-003) consisting of four, low capacitance shielded
twisted pairs with an overall shield, extra large conductors for power and
signal ground all within an abrasion-resistant PVC jacket. Size 16 and
18 cable assemblies utilize a waterproof and UV resistant over-molded
backshell.
L
Mating Connector Type: MS3106F14S-6S
Cable Length
10 feet
20 feet
30 feet
BEI Part No.
31186-1410
31186-1420
31186-1430
Mating Connector Type: MS3106F16S-1S
Cable Length
10 feet
20 feet
30 feet
BEI Part No.
31186-1610
31186-1620
31186-1630
Mating Connector Type: MS3106F18-1S
Cable Length
10 feet
20 feet
30 feet
BEI Part No.
31186-1810
31186-1820
31186-1830
Cable for Incremental Encoders
Both 100’ and 500’ reels of encoder cable are
available for your own custom wiring requirements.
This high quality custom BEI Standard Cable con-
sisting of four, low capacitance shielded twisted
pairs with an overall shield, extra large conductors
for power and signal ground all within an abrasion-
resistant PVC jacket
Cable Length
100 feet
500 feet
BEI Part No.
37048-003-100
37048-003-500
Cable Assemblies for
8-Bit Absolute Encoders
Cable assemblies for 8-Bit absolute encoders are built
using the high quality custom BEI Standard Cable (P/N
37059) consisting of 12, 22 gage conductors, an overall
shield and an abrasion-resistant PVC jacket.
Mating connector type: MS3106F20-29S
Cable Length
10 feet
20 feet
30 feet
BEI Part No.
31204-2010
31204-2020
31204-2030
Cable Assemblies for
12-Bit Absolute Encoders
Cable assemblies for absolute encoders are built using the high
quality custom BEI Standard Cable (P/N 37063) consisting of 18,
26 gage conductors and uses larger, 22 gage conductors for
power and ground. This cable has an overall shield and uses an
abrasion-resistant PVC jacket.
Mating connector type: MS3116F14-19S
Cable Length
10 feet
20 feet
30 feet
BEI Part No.
31219-1410
31219-1420
31219-1430
43
Accessories
Couplings
Couplings are high performance, helical-cut beam style providing the best combina-
tion of torsional rigidity and compensation for shaft misalignment. They are made
of aluminum and are iridite coated to resist chemical attack.
BEI Part No.
39074-8-8
39074-12-8
39074-12-12
Bore Dia +.002/-.000
A1Dia
A2 Dia
.250
.375
.375
.250
.250
.375
Torsional
Flexibility
.165 min/in-oz
.315 min/in-oz
.315 min/in-oz
Non-Reversing
19
15
15
Torques (Lbs-inch)
Shock or Reversing
9.3
7.5
7.5
1.00
Momentary
37
30
30
1. Bore is relieved to allow shafts to nearly butt
2. Setscrews: Cup point, hex socket, #6-32. Two at each end, 90º apart.
3. Permitted axial motion from free length: ±.020
4. Permissible shaft alignment: Angular up to 5º; Parallel up to .010"
Installation note:
To avoid coupling failure, be sure the shafts fit freely in the coupling bores and that the
coupling is not compressed or subjected to greater deflections than specified above.
A1
A2
1.00 Ø
Measuring Wheel
This measuring wheel uses an 80 durometer urethane rolling surface vulcanized to an
aluminum hub and then machined to a circumference of 12 inches. It is designed to be used
with shafts of a nominal 3/8" diameter and should be installed with the hub side facing
away from the encoder housing. Maximum recommended load in service is 15 pounds to
avoid overloading the encoder bearings.
Order BEI P/N 31196-001
Protective Housing for Hollow-Shaft Encoders
This cage is designed to protect hollow-shaft style encoders from mechanical damage
during handling and installation. It is used with either the HS25 or the HS35 encoder and
has a side cutout to allow for tether arm placement. This cover has been designed to
accept a NEMA56 standard motor face mount and can be used with either through-shaft or
blind shaft styles of encoders. Protective cover kits come with installation hardware.
Order BEI P/N 26068-001
44
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