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Flexible Couplings - zero backlash, EK2 series, (Inches). (Part Numbers)

Flexible Couplings - zero backlash, EK2 series, (Inches).

R+W

R+W

Features
Easy to mount
Highly concentric assembly
Vibration damping

Design
Two concentrically machined hubs with curved jaws and clamping screws, with calibrated preloaded insert

Material
Hubs: high strength aluminum
Elastomer: wear resistant thermanally stable TPU, available in 3 hardness levels

Advantage
Smooth running and reliable transmission with absorption of vibration and shock

Size 800 is available on special request.

Part Number

Configured Part Number is shown.


30
60
90
  1. 1
Part Number
EK2/450/A/53.97/53.97
EK2/450/A/53.97/57.15
EK2/450/B/53.97/53.97
EK2/450/B/53.97/57.15
EK2/450/C/53.97/53.97
EK2/450/C/53.97/57.15
Part NumberMinimum order quantityVolume DiscountDays to Ship Allowable Torque Range
(N•m) 		Outer Dia. A
(Ø) 		Overall Length W
(mm) 		Max. Rotational Speed Range
(r/min) 		Allowable Torque
(N•m) 		Max. Rotational Speed
(r/min) 		Allowable Angular Misalignment
(deg) 		Allowable Lateral Misalignment Range
(mm) 		Allowable Lateral Misalignment
(mm) 		Operating Temperature Range
(℃) 		Moment of Inertia
(kg･m2) 		For Shaft Size D1
(inch) 		For Shaft Size D2
(inch) 		Fit Length (mm)
(mm) 		Tightening Torque of the Fastening Screw (in-lbs)
(in-lbs) 		Size Elastomer Insert
1 Piece(s)

21 Days

1000~less than 50001021264001~100001060800010.02~0.20.2-30～1000.00182 1/82 1/8501062450A - Shore 98A
1 Piece(s)

21 Days

1000~less than 50001021264001~100001060800010.02~0.20.2-30～1000.00182 1/82 1/4501062450A - Shore 98A
1 Piece(s)

21 Days

1000~less than 50001021264001~10000135080000.80.02~0.20.18-30～1200.00182 1/82 1/8501062450B - Shore 64D
1 Piece(s)

21 Days

1000~less than 50001021264001~10000135080000.80.02~0.20.18-30～1200.00182 1/82 1/4501062450B - Shore 64D
1 Piece(s)

21 Days

100~less than 5001021264001~1000019080001.20.21~0.400.35-30～1000.00182 1/82 1/8501062450C - Shore 80A
1 Piece(s)

21 Days

100~less than 5001021264001~1000019080001.20.21~0.400.35-30～1000.00182 1/82 1/4501062450C - Shore 80A

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  1. 1

Basic Information

Type Jaw Type Application Servo Motor / Stepping Motor Feature No Backlash
Body Material Aluminum Buffer Part Material Polyurethane Allowable Axial Misalignment (±)(mm) 2

Configure

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6 Part Numbers

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Configure Remaining Specifications
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Specification/Dimensions

  • Allowable Torque Range(N•m)

    • 10.01~20.00
    • 20.01~50.00
    • 50.01~100.00
    • 100~less than 500
    • 500~less than 1000
    • 1000~less than 5000

    Clear

  • Outer Dia. A(Ø)

    • 42
    • 56
    • 67
    • 82
    • 102

    Clear

  • Overall Length W(mm)

    • 66
    • 78
    • 90
    • 114
    • 126

    Clear

  • Max. Rotational Speed Range(r/min)

    • 4001~10000
    • 10001~78000

    Clear

  • Allowable Torque(N•m)

    • 12
    • 34
    • 40
    • 42
    • 85
    • 120
    • 150
    • 170
    • 190
    • 320
    • 400
    • 650
    • 810
    • 1060
    • 1350

    Clear

  • Max. Rotational Speed(r/min)

    • 8000
    • 9000
    • 10000
    • 11000
    • 12500

    Clear

  • Allowable Angular Misalignment(deg)

    • 0.8
    • 1
    • 1.2

    Clear

  • Allowable Lateral Misalignment Range(mm)

    • 0.02~0.2
    • 0.21~0.40

    Clear

  • Allowable Lateral Misalignment(mm)

    • 0.08
    • 0.1
    • 0.12
    • 0.14
    • 0.15
    • 0.18
    • 0.2
    • 0.25
    • 0.3
    • 0.35

    Clear

  • For Shaft Size D2(inch)

    • 1
    • 1 1/2
    • 1 1/4
    • 1 1/8
    • 1/2
    • 1 2/3
    • 1 3/4
    • 1 3/7
    • 1 3/8
    • 1 5/8
    • 1 7/8
    • 2
    • 2 1/4
    • 2 1/8
    • 3/4
    • 3/7
    • 3/8
    • 5/8
    • 7/8

    Clear

  • Fit Length (mm)(mm)

    • 25
    • 30
    • 35
    • 45
    • 50

    Clear

  • Tightening Torque of the Fastening Screw (in-lbs)(in-lbs)

    • 71
    • 133
    • 310
    • 620
    • 1062

    Clear

  • Size

    • 20
    • 60
    • 150
    • 300
    • 450

    Clear

  • Elastomer Insert

    • B - Shore 64D
    • C - Shore 80A
    • A - Shore 98A

    Clear

  • For Shaft Size D1(inch)

    • 1
    • 1 1/2
    • 1 1/4
    • 1 1/8
    • 1/2
    • 1 2/3
    • 1 3/4
    • 1 3/7
    • 1 3/8
    • 1 5/8
    • 1 7/8
    • 2
    • 2 1/4
    • 2 1/8
    • 3/4
    • 3/7
    • 3/8
    • 5/8
    • 7/8

    Clear

  • CAD

    • 3D

    Clear

Days to Ship

    • All
    • 5 Days or Less
    • 8 Days or Less
    • 21 Days or Less

    Clear

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