Rotary Encoder Accessories E69 Accessories Couplings Coupling Materials and Characteristics Comparison of Specifications for 6-mm Shafts OMRON provides two types of couplings for different Material Resin Metal application conditions: Resin and metal. Select the best type Machine specification (standard type) (aluminum, helical) for the application. Eccentricity (mm) 0.5 0.15 As a general rule, use metal couplings for high resolution and Eccentricity (degrees) 63 resin couplings for low resolution. (As a rough guide, a high Deviation in shaft 0.4 0.15 resolution is one that exceeds 3,600 ppr.) direction (mm) Even for applications requiring relatively low resolution, a metal Allowable torque (Nm) 0.8 1.6 coupling will provide more reliability in applications involving Torsion rigidity (Nm/rad) 728 rapid acceleration/deceleration or for Encoders with high 2 7 7 starting torque. Moment of inertia (kgm ) 1.2 10 6 10 Weight (g) 412 Characteristics Material Advantages Disadvantages Low torsion rigidity and thus not suitable for high Low cost. resolution. Resin Easy shaft alignment when mounting. Mounting is possible even if the shafts are greatly (standard type) Lightweight and low moment of inertia, placing a smaller misaligned, which can cause damage from fatigue over load on the drive system. long periods of application. High cost. Metal High torsion rigidity and thus suitable for high resolution. Heavy and thus place a large load on the drive system. (aluminum, helical) Transmitted allowable torque is large. The allowable shaft misalignment is small, so accurate positioning is required when mounting. Coupling Suitability Table : Suitable and provided with product, : Suitable and sold separately, ---: Not suitable. Couplings Specification Resin, Resin, standard type Metal different end diameter Shaft interior 2 dia. 4 dia. 6 dia. 8 dia. 10 dia. 6 dia., 8 dia., 6 dia., 10 dia., 6 dia. 10 dia. (tolerance *) (Height: 8), (Height: 8), (Height: 8), (Height: 8), (Height: 8), (Height: 8), (Height: 8), (Height: 8), (Height: 8), exterior dia. 9 dia. 13 dia. 15 dia. 19 dia. 22 dia. 19 dia. 22 dia. 19.1 dia. 25.4 dia. Rotary Encoder Model/shaft 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. E6C2-C --- --- --- --- --- 6 dia. E6C3-C --- --- --- --- --- --- --- 8 dia. E6D-C --- --- --- --- --- 6 dia. E6F-C --- --- --- --- --- --- 10 dia. E6H-C Hollow-shaft Model Coupling not required. Hollow shaft interior dia.: 8 mm E6J-C --- --- --- --- --- --- --- --- 2 dia. Sold separately E6CP-A --- --- only for --- --- --- 6 dia. E6CP- AG5C-C. E6C3-A --- --- --- --- --- --- --- 8 dia. Only E6F-A --- --- --- --- Pre-wired --- --- 10 dia. Models E6J-A --- --- --- --- --- --- --- --- 4 dia. *Tolerance conforms to JIS standard: JIS B 0401. Refer to page 2. 1Rotary Encoders (Unit: mm) Coupling Dimensions Tolerance class IT16 applies to dimensions in this datasheet unless otherwise specified. E69-C02B E69-C04B 0.4 13.2 21 (6.8) 5.2 (10.6) 5.2 3.2 3.2 1.6 1.6 2.7 2.7 (15.6) 90.2 dia. Four, M2 4 dia., 13 dia. Height: 8 Four, M3 hexagonal Material: Glass-reinforced PBT set screws Material: Glass-reinforced PBT Applicable model: E6J-C Applicable model: E6A2-C, E6J-A E69-C06B E69-C06M 22 Four, M3 5.5 5.5 Four, M3 19.1 hexagonal (11) hexagonal 2.8 set screws 2.4 2.8 (16.4) 2.4 set screws 6 dia., 15 dia. Height: 8 6 dia., 19.1 dia. Height: 8 Material: Extra-super duralumin Material: Glass-reinforced PBT Applicable model: E6B2-C, E6C2-C, E6D-C, E6CP-A E69-C10B E69-C10M 26.2 Four, M4 Four, M5 7.1 (12) 7.1 hexagonal 25.4 hexagonal 3.6 set screws set screws 3.6 3.8 3.8 (19) 10 dia., 22 dia. Height: 8 10 dia, 25.4 dia. Height: 8 Material: Extra-super duralumin Material: Glass-reinforced PBT Applicable model:E6F-C, E6F-A E69-C08B E69-C68B Model with Different End Diameter 23.6 24.8 6.8 6.8 Four, M4 6.8 6.8 hexagonal 3.5 3.5 set screws 3.5 3.5 Brass bushing 8 dia., 8 dia., Height: 8 19 dia. 6 dia., Height: 8 8 dia., 19 dia. Height: 8 Height: 8 Material: Glass-reinforced PBT Four, M4 hexagonal set screws Material: Glass-reinforced PBT Applicable model: E6B2-C, E6C2-C, E6C3-C, E6D-C, Applicable model: E6C3-A, E6C3-C E6CP-A, E6C3-A E69-C610B Model with Different End Diameter Standard hole dimensions (mm) Tolerance (m) 25.6 Four, M4 7.1 7.1 Min. Max. Height: 8 hexagonal 3.6 3.6 set screws +14 --- 3 Brass bushing 0 +18 10 dia., 36 6 dia., 22 dia. Height: 8 0 Height: 8 +22 610 0 Material: Glass-reinforced PBT Applicable model: E6B2-C, E6C2-C, E6D-C, E6F-C, E6CP-A, E6F-A 2