Figure 1-13. 7A050 Kit Components and Assembly.

TM 55-4920-201-14

Figure 1-13. 7A050 Kit Components and Assembly.

a. Flange-mounted propeller assemblies

1-16. P R O P E L L E R A D A P T E R K I T 7 A 0 5 2 .

having no center hole through the hub for in-

stallation of the balancing arbor.

1-17. The adapters comprising propeller hard-

wood, portable storage case. The case measures

b. Single-cone, SAE no. 20 and no. 30 splined

approximately 20 x 15 x 7 inches and, when

hub propeller assemblies with shaft nuts enclosed in

packed with all adapters, weighs approximately

the hub.

146 pounds. Kit adapter components are of high

c. Balancing of double-cone, SAE no. 50

alloy steel, heat treated to a high degree of hard-

splined hub propeller assemblies with shaft nuts

ness, t o i n s u r e v i r t u a l l y u n l i m i t e d s e r v i c e l i f e .

and front cones enclosed in hub.

Piloting fits are controlled to very close tolerances

d. Special propeller assembly configurations,

and are superfinished to within a few micro-inches.

such as propeller assemblies with dome or cylinder-

Nonpiloting surfaces are c h r o m e p l a t e d f o r

counterweight assemblies.

protection against corrosion. The 7A052 adapter

e. Flange-mounted propellers of the reversing

kit extends the utility of propeller balancing kit

type.

7A050 by making possible balance checking of the

following additional types of assemblies.

1-17