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047.20

Item number:

Description:

Double Loop Couplings with Steel Hubs The double loop coupling uses a moulded plastic element permanently swaged to steel or stainless steel hubs to give a compact design. It forms an effective two-stage coupling with exceptional flexibility in all three modes. Ideal for transmitting rotation in small drives, this type of coupling works without any friction, wear or noise, although its low torsional stiffness makes it less suitable for high precision positioning applications.

Select bore(s) before adding to cart (prices will change if keyways are selected).

Bore 1
Bore 2
Part #:

Technical Specifications

Coupling Type
Double Loop Coupling - Flex-P
Configuration
Hytrel Element
Size
20
Material
Steel Hub
Max Bore B1 (in)
0.5
Max Bore B1 (mm)
12.7
Min Bore B1 (in)
0.236
Min Bore B1 (mm)
6
Max Bore B2 (in)
0.5
Max Bore B2 (mm)
12.7
Min Bore B2 (in)
0.236
Min Bore B2 (mm)
6
Angular Compensation, Max (degrees)
15
Axial Compensation, Max (in)
0.3
Axial Compensation, Max (mm)
7.5
Bore Length (in)
0.5
Bore Length (mm)
12.7
Bore Tolerance (in)
+0.0012 / -0.0000
Bore Tolerance (mm)
+0.03 / -0.00
Fastener Screw Size
M4
Fastener Screw Torque (lb-in)
20.1
Fastener Screw Torque (Nm)
2.27
Fastener Wrench Size (mm)
2
Max Speed (rpm)
3000
Operating Temperature (°C)
-40 to +100
Operating Temperature (°F)
-40 to +212
Radial Compensation, Max (in)
0.13
Radial Compensation, Max (mm)
3.2
Resists Axial Load
Yes
Shaft Connection
Set-Screw
Torque, Max 1 (lb-in)
15.9
Torque, Max 1 (Nm)
1.8
Torque, Max 2 (lb-in)
26.6
Torque, Max 2 (Nm)
3
Mass (Weight) (g)
92
Mass (Weight) (oz)
3.3
[D] Outside Diameter (in)
1.89
[D] Outside Diameter (mm)
48
[L] Length (in)
1.89
[L] Length (mm)
48
[L] Overall Length (in)
1.89
[L] Overall Length (mm)
48
Item Note
Coupling load capacity depends on the operating load cycle. Refer to catalog for further sizing information.
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