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554.20

Item number:

Description:

Precision couplings with excellent kinematic properties. Stainless Steel Bellows Couplings with Clamp Hubs.

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

Bore 1
Bore 2
Part #:

Technical Specifications

Coupling Type
Bellows Flex-K
Configuration
Short
Size
20
Material
Aluminium/Stainless Steel
Max Bore B1 (in)
0.394
Max Bore B1 (mm)
10
Min Bore B1 (in)
0.12
Min Bore B1 (mm)
3
Max Bore B2 (in)
0.39
Max Bore B2 (mm)
10
Min Bore B2 (in)
0.12
Min Bore B2 (mm)
3
Angular Compensation, Max (degrees)
1.5
Axial Compensation, Max (in)
0.012
Axial Compensation, Max (mm)
0.3
Axial Stiffness (lbf/in)
85.6
Axial Stiffness (N/mm)
15
Bore Tolerance (in)
+0.0012 / -0.0000
Bore Tolerance (mm)
+0.03 / -0.00
Fastener Screw Size
M2.5
Fastener Screw Torque (lb-in)
7.52
Fastener Screw Torque (Nm)
0.85
Fastener Wrench Size (mm)
2
Operating Temperature (°C)
-30 to +120
Operating Temperature (°F)
-30 to +248
Peak Torque (lb-in)
13.3
Peak Torque (Nm)
1.5
Radial Compensation, Max (in)
0.004
Radial Compensation, Max (mm)
0.1
Radial Stiffness (lbf/in)
336.8
Radial Stiffness (N/mm)
59
Resists Axial Load
Yes
Shaft Connection
Clamp
Torsional Stiffness (lb-in/rad)
6638
Torsional Stiffness (Nm/rad)
750
Mass (Weight) (g)
9.5
Mass (Weight) (oz)
0.34
[D] Outside Diameter (in)
0.79
[D] Outside Diameter (mm)
20
L1 Dimension (in)
0.33
L1 Dimension (mm)
8.5
[L] Length (in)
1.04
[L] Length (mm)
26.5
[L] Overall Length (in)
1.04
[L] Overall Length (mm)
26.5
Item Note
Coupling load capacity depends on the operating load cycle. Refer to catalog for further sizing information.
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