ltlutilit y supply c om 390 STRINGING TRUSTED SINCE 1958 T imberland Equipment Lt d U sed f or mounting on Univ ersalK T ype I nsulat ors K T A A daptor Aluminum allo y cast shea v es with machined g r oo v e Roller bearings Aluminum allo y case side frames 6708367113 S tringing Blocks 67083 67113 S hea v e D imensions Unlined Lined Unlined Lined O utside D imensions 8 8 10 34 10 34 Root D iamet er 6 6 12 8 8 12 Groo v e Radius 58 12 1116 916 Groo v e Depth 1 34 1 38 1 18 W eight Appro x 15 lb Appro x 27 lb Groo v e sides f ared outw a rds a t 15 on unlined shea v e and a t 30 on lined shea v e Basic block w eight not including base C ompac t st eel frame zinc plat e d C ast n ylon shea v e Cr osshead and t ype B socket f or suspension Light w eight c onstruc tion S ealed ball bearings 4700 S eries S tringing Blocks Nominal S hea v e D imensions 47161N y 47201N y 47261N y 47301N y 47361N y A1 6 2 0 2 6 3 1 3 6 B1 4 1 6 2 2 2 6 3 1 C 1 2 2 25 25 D 71 1 13 13 16 E 2 3 35 35 43 W eight Appro x 38 lb 43 lb 47 lb 54 lb 66 lb