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Flexible Couplings - Bellows Type, Zero Backlash, BKL Series, (Inches).

Flexible Couplings - Bellows Type, Zero Backlash, BKL Series, (Inches).

Features
Easy to mount
Light weight and low moment of inertia
High torsional stiffness

Design
Two clamping hubs concentrically mounted to flexible bellows. Brief overloads of up to 1.5x the rated torque are acceptable.

Material
Bellows: high grade stainless steel
Hubs: see table

Advantage
Smooth stable running in highly dynamic and highly precise motion applications


Pilot bore parts can be found on the metric page here.


Part Number
BKL/2/12.7/12.7
BKL/4.5/12.7/12.7
BKL/4.5/12.7/15.88
BKL/10/12.7/12.7
BKL/10/12.7/15.88
BKL/10/12.7/19.05
BKL/10/12.7/22.23
BKL/15/12.7/12.7
BKL/15/12.7/15.88
BKL/15/12.7/19.05
BKL/15/12.7/22.23
BKL/15/12.7/25.4
BKL/30/12.7/12.7
BKL/30/12.7/19.05
BKL/30/12.7/22.23
BKL/30/12.7/25.4
BKL/30/12.7/28.58
BKL/30/12.7/31.75
Part NumberMinimum order quantityVolume DiscountDays to Ship Allowable Torque Range
(N•m)
Outer Dia. A
(Ø)
Overall Length W
(mm)
Allowable Torque
(N•m)
Moment of Inertia
(kg・m2)
For Shaft Size D1
(inch)
For Shaft Size D2
(inch)
Fit Length (mm)
(mm)
Torsional Stiffness (N-m/rad)
(N-m/rad)
Tightening Torque of the Fastening Screw (N-m)
(N-m)
Size
1 Piece(s)

21 Days

1.01~3.00253020.0000021/21/210.515002.32
1 Piece(s)

5 Days

3.01~5.0032404.50.0000071/21/213700044.5
1 Piece(s)

21 Days

3.01~5.0032404.50.0000071/25/813700044.5
1 Piece(s)

5 Days

5.01~10.004044100.0000161/21/21390004.510
1 Piece(s)

21 Days

5.01~10.004044100.0000161/25/81390004.510
1 Piece(s)

5 Days

5.01~10.004044100.0000161/23/41390004.510
1 Piece(s)

21 Days

5.01~10.004044100.0000161/27/81390004.510
1 Piece(s)

21 Days

10.01~20.005658150.0000651/21/221.523000815
1 Piece(s)

21 Days

10.01~20.005658150.0000651/25/821.523000815
1 Piece(s)

21 Days

10.01~20.005658150.0000651/23/421.523000815
1 Piece(s)

21 Days

10.01~20.005658150.0000651/27/821.523000815
1 Piece(s)

21 Days

10.01~20.005658150.0000651/2121.523000815
1 Piece(s)

21 Days

20.01~50.005668300.000121/21/226310001530
1 Piece(s)

21 Days

20.01~50.005668300.000121/23/426310001530
1 Piece(s)

21 Days

20.01~50.005668300.000121/27/826310001530
1 Piece(s)

21 Days

20.01~50.005668300.000121/2126310001530
1 Piece(s)

21 Days

20.01~50.005668300.000121/21 1/826310001530
1 Piece(s)

21 Days

20.01~50.005668300.000121/21 1/426310001530

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Basic Information

Type Bellows Type Max. Rotational Speed Range(r/min) 4001~10000 Feature No Backlash / Low Moment of Inertia
Body Material Aluminum Max. Rotational Speed(r/min) 10000 Allowable Angular Misalignment(deg) 1
Allowable Lateral Misalignment Range(mm) 0.02~0.2 Allowable Lateral Misalignment(mm) 0.2 Operating Temperature Range(℃) -30::100

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