Rotary Encoders
1
Accessories
Couplings
Coupling Materials and Characteristics
OMRON provides two types of couplings for different
application conditions: Resin and metal. Select the best type
for the application.
Comparison of Specifications for 6-mm Shafts
Characteristics
Coupling Suitability Table
❍ : Suitable and provided with product, Δ: Suitable and sold separately, ---: Not suitable.
*Tolerance conforms to JIS standard: JIS B 0401. ➜Refer to page 2.
As a general rule, use metal couplings for high resolution and
resin couplings for low resolution. (As a rough guide, a high
resolution is one that exceeds 3,600 ppr.)
Even for applications requiring relatively low resolution, a metal
coupling will provide more reliability in applications involving
rapid acceleration/deceleration or for Encoders with high
starting torque.
Material
Machine specification
Resin
(standard type)
Metal
(aluminum, helical)
Eccentricity (mm) 0.5 0.15
Eccentricity (degrees) 63
Deviation in shaft
direction (mm) ±0.4 ±0.15
Allowable torque (N·m) 0.8 1.6
Torsion rigidity (Nm/rad) 728
Moment of inertia (kg·m2)1.2 × 10−76 × 10−7
Weight (g) 412
Material Advantages Disadvantages
Resin
(standard type)
• Low cost.
• Easy shaft alignment when mounting.
• Lightweight and low moment of inertia, placing a smaller
load on the drive system.
• Low torsion rigidity and thus not suitable for high
resolution.
• Mounting is possible even if the shafts are greatly
misaligned, which can cause damage from fatigue over
long periods of application.
Metal
(aluminum, helical)
• High torsion rigidity and thus suitable for high resolution.
• Transmitted allowable torque is large.
•High cost.
• Heavy and thus place a large load on the drive system.
• The allowable shaft misalignment is small, so accurate
positioning is required when mounting.
Couplings Specification Resin, standard type Resin,
different end diameter Metal
Rotary Encoder
Model/shaft dia.
Shaft interior
(tolerance *)
exterior dia.
2 dia.
(Height: 8),
9 dia.
4 dia.
(Height: 8),
13 dia.
6 dia.
(Height: 8),
15 dia.
8 dia.
(Height: 8),
19 dia.
10 dia.
(Height: 8),
22 dia.
6 dia., 8 dia.,
(Height: 8),
19 dia.
6 dia., 10 dia.,
(Height: 8),
22 dia.
6 dia.
(Height: 8),
19.1 dia.
10 dia.
(Height: 8),
25.4 dia.
Model E69-C02B E69-C04B E69-C06B E69-C08B E69-C10B E69-C68B E69-C610B E69-C06M E69-C10M
E6A2-C
4 dia. --- ❍--- --- --- --- --- --- ---
E6B2-C
6 dia. --- --- ❍--- --- ΔΔΔ---
E6C2-C
6 dia. --- --- Δ--- --- ΔΔΔ---
E6C3-C
8 dia. --- --- --- Δ--- Δ--- --- ---
E6D-C
6 dia. --- --- ❍--- --- ΔΔΔ---
E6F-C
10 dia. --- --- --- --- Δ--- Δ--- Δ
E6H-C
Hollow shaft interior dia.: 8 mm Hollow-shaft Model; Coupling not required.
E6J-C
2 dia. ❍--- --- --- --- --- --- --- ---
E6C-N
6 dia. --- --- Δ--- --- ΔΔΔ---
E6CP-A
6 dia. --- ---
❍ Sold
separately
only for
E6CP-
AG5C-C.
--- --- ΔΔΔ---
E6C3-A
8 dia. --- --- --- Δ--- Δ--- --- ---
E6F-A
10 dia. --- --- --- ---
❍ Only
Pre-wired
Models
--- Δ--- Δ
E6J-A
4 dia. --- ❍--- --- --- --- --- --- ---
CSM_RotaryEncoder_OP_E_6_1
Rotary Encoders
2
(Unit: mm)
Coupling Dimensions Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.
Applicable model: E6B2-C, E6C2-C, E6D-C, E6C-N, E6CP-A
Applicable model:E6F-C, E6F-A
Four, M2
1.6
3.2
(6.8)
13.2±0.4
3.2
9±0.2 dia.
1.6
Material: Glass-reinforced PBT
E69-C02B
Applicable model: E6J-C
21
Four, M3
hexagonal
set screws
4 dia.,
Height: 813 dia.
(10.6)
(15.6) 2.72.7
5.2 5.2
Material: Glass-reinforced PBT
E69-C04B
Applicable model: E6A2-C, E6J-A
22
Four, M3
hexagonal
set screws
6 dia.,
Height: 815 dia.
(11)
(16.4) 2.8
2.8
5.5 5.5
Material: Glass-reinforced PBT
E69-C06B
2.4 2.4
19.1
19.1 dia.
6 dia.,
Height: 8
Four, M3
hexagonal
set screws
Material: Extra-super duralumin
E69-C06M
26.2 Four, M4
hexagonal
set screws
10 dia.,
Height: 822 dia.
(12)
(19)
3.6 3.6
7.1
7.1
Material: Glass-reinforced PBT
E69-C10B
25.4
3.83.8
Four, M5
hexagonal
set screws
10 dia,
Height: 8
25.4 dia.
Material: Extra-super duralumin
E69-C10M
8 dia., Height: 88 dia.,
Height: 819 dia.
Four, M4 hexagonal set screws
3.5 3.5
6.86.8
23.6
Material: Glass-reinforced PBT
E69-C08B
Applicable model: E6C3-A, E6C3-C
Four, M4
hexagonal
set screws
24.8
6.86.8
3.53.5
Brass bushing
6 dia.,
Height: 8
8 dia.,
Height: 819 dia.
Material: Glass-reinforced PBT
E69-C68B
Model with Different End Diameter
Applicable model: E6B2-C, E6C2-C, E6C3-C, E6D-C, E6C-N,
E6CP-A, E6C3-A
25.6
7.1 7.1
3.6 3.6
Brass bushing
6 dia.,
Height: 8
10 dia.,
Height: 822 dia.
Four, M4
hexagonal
set screws
Material: Glass-reinforced PBT
E69-C610B
Model with Different End Diameter
Applicable model: E6B2-C, E6C2-C, E6D-C, E6F-C, E6C-N,
E6CP-A, E6F-A
Standard hole dimensions (mm) Tolerance (μm)
Min. Max. Height: 8
--- 3 +14
0
36
+18
0
610
+22
0
Rotary Encoders
3
Flanges and Servo Mounting Brackets
Flange and Servo Mounting Bracket Suitability Table
❍: Suitable and provided with product, Δ: Suitable and sold separately, ---: Not suitable.
Flange Dimensions (Unit: mm)
Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.
Rotary
Encoder
Model
Type Flange Servo Mounting Bracket
Model
Remarks E69-FBA E69-FCA E69-FCA03 E69-FBA02 E69-FCA02 E69-FCA04 E69-1 E69-2
E69-2 Servo Mounting Bracket provided.
E6A2-C --- --- --- --- --- ---
❍ Provided
with the
E6A2-CWZ.
---
E6B2-C Δ--- --- Δ--- --- --- Δ
E6C2-C --- Δ--- --- Δ--- --- Δ
E6C3-C --- --- Δ--- --- Δ--- Δ
E6D-C --- --- --- --- --- --- --- ❍
E6F-C --- --- --- --- --- --- --- Δ
E6H-C Hollow-shaft Model; Flange not required.
E6C-N --- Δ--- --- Δ--- --- Δ
E6CP-A --- --- --- --- --- --- --- ❍
E6C3-A --- --- Δ--- --- Δ--- Δ
E6F-A --- --- --- --- --- --- --- ❍
E69-FBA E69-FCA E69-FCA03
Applicable model: E6B2-C
Note: Three phillips screws M3 ✕ 10 provided, E69-2 Servo Mounting Bracket provided
42 × 42
33
±0.2
33
±0.15
Four,
R3
Four, 3.3-dia. holes
Three, 3.5-dia. holes,
6.5 countersinking
30±0.1 dia.
20.2-dia. Hole
Material: SPCC
Thickness: 3.2
Applicable model: E6B2-C
Note: Three phillips screws M3 ✕ 6 provided
Four,
R3
43±0.15 38±0.1 dia.
52
×
52
25.2
+0.05
dia. hole
0
43±0.15
Four, 4.5-dia. holes
Three,
4.5-dia. holes,
8.5 countersinking
Material: SPCC
Thickness: 3.2
Applicable model: E6C2-C, E6C-N
Note: Three phillips screws M4 ✕ 8 provided
43±0.15
52
5243±0.15
45°
120°±1°
40±0.1 dia.
120°±1°
30.2±0.1 dia.Four,R3
Four,
4.5 dia.
Three, 4.5-dia.
holes, M4
countersinking
Material: SPCC
Thickness: 3.2
Applicable model: E6C3-A, E6C3-C
Note: Three phillips screws M4 ✕ 8 provided
20 dia.
Three, M5
20.2
±0.1
dia.
46 dia.
30 dia. 120°
58±0.2 dia.
120°
120°
Panel
Three, 3.5-dia.
holes, 6.5
countersinking
Material: SPCC
Thickness: 3.2
Mounting Diagram
For the E6B2-C
E69-FBA02
Rotary Encoders
4
Servo Mounting Bracket Dimensions (Unit: mm)
Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified.
38 dia.
56 dia.
25.2±0.1 dia.
120°
120°
120°
120°
25 dia.
68±0.2 dia.
120°
25 dia.
Three, M5
Three, M5
68±0.2 dia.
Panel
Three, 5.5-dia.
holes, 8.5
countersinking
Panel
Material: SPCC
Thickness: 3.2
Mounting Diagram
For the E6C2-C
Mounting Diagram
For the E6C-N
E69-FCA02
Applicable model: E6C2-C, E6C-N
Note: Three phillips screws M4 ✕ 10 provided, E69-2 Servo Mounting Bracket provided
120°
±1°
120°
±1°
56 dia.
120°
68
±0.2
dia.
120°
40
±0.1
dia.
30.2
±0.1
dia.
Three, M4 holes,
4.5 countersinking
Panel
Three, M5 screws
30 +0
−0.021 dia.
Mounting Diagram
For the E6C3-A
E69-FCA04
Applicable model: E6C3-C, E6C3-A
Note: Three phillips screws M4 ✕ 8 provided, E69-2 Servo Mounting Bracket provided
Material: SPCC
Thickness: 3.2
1.6+0.1
0
(2.8)
5
8.5
(9.7)
8
4
Two,
0.5 corners
3.5-dia. hole
Material: SPCC
Applicable model: E6A2-C
E69-1 (Three brackets in a set.)
(5.1)
3.1+0.1
0
2
9
16
(18)
16
8
5.5-dia. hole
Two,
1 corners
Applicable model:
E6B2-C, E6C2-C,
E6C3-CWZ@H, E6D-C,
E6F-C, E6C-N, E6CP-A,
E6C3-A, E6F-A
Material: SPCC
E69-2 (Three brackets in a set.)
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
•
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
•
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
•
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2010.8
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2010 All Right Reserved.
