UNIVERSAL SPHERICAL TENSION ADAPTER (USTA)
2.12
1
2
Load Frame Accessories
The USTA is a versatile device that connects a wide number of tension accessories to an Instron test machine, provides a smooth spherical seat, and requires few or no additional adapters. The USTA threads into a standard machine interface from the direction of the test space and connects to the machine thread on one end and directly to the accessory on the other, all-in-one compact device. The USTA consists of a sleeve component that is threaded for the test machine and a shank component that is threaded for tension accessories. The two components mate on matching spherical surfaces that allow flexibility during alignment and sustain the load during a test. A nut holds the assembly together and a polymer washer allows flexibility without looseness. UNIVERSAL SPHERICAL TENSION ADAPTERS Catalog Number
Description
Capacity
Upper/Lower Effective Length
kN
lbf
mm
in
Angle of Freedom
Accessory Interface
1
W-5551-A
Single-1 spherical coupling/1 rigid coupling Type IIm (M48 × 2 LH)
300
67,500
140
5.5
2
Type R4 Male (M36 × 4pRH) Type R3 Female (0.75 in × 10 RH)
2
W-5551-B
Dual-2 spherical couplings Type IIm (M48 × 2 LH)
300
67,500
140
5.5
2
Type R4 Male (M36 × 4pRH) Type R3 Female (0.75 in × 10 RH)
W-5551-G
Single-1 spherical coupling/1 rigid coupling Type IIm (M48 × 2 LH)
300
67,500
101.6
4.0
2
Type R4 Male (M36 × 4pRH) Type R3 Female (0.75 in × 10 RH)
W-5551-H
Single-1 spherical coupling/1 rigid coupling Type Dm (1/2" clevis)
100
22,500
172.7
6.8
2
Type R4 Male (M36 × 4pRH) Type R3 Female (0.75 in × 10 RH)
W-5552-A
Single-1 spherical coupling/1 rigid coupling Type IIAm (M72 × 3 LH)
600
135,000
129
5.06
3
Type II Male (M48 × 2pRH) Type R3 Female (0.75 in × 10 RH)
W-5552-B
Dual-2 spherical couplings Type IIAm (M72 × 3 LH)
600
135,000
129
5.06
3
Type II Male (M48 × 2pRH) Type R3 Female (0.75 in × 10 RH)
W-5552-E
Single-1 spherical coupling /1 rigid coupling Type IIm (M48 × 2 LH)
400
90,000
98.5
3.88
2
Type RIIm (M48 × 2 RH) Type R3f (0.75 – 10 inch RH)
W-5552-F
Dual-2 spherical couplings Type IIm (M48 × 2 LH)
400
90,000
98.5
3.88
2
Type RIIm (M48 × 2 RH) Type R3f (0.75 – 10 inch RH)
237
