Transmission Connectors - Line and Tower Hardware (TA)

Hardware Fittings— Forged Steel Turnbuckles

A 32

FORGED STEEL TB

Turnbuckles are used as adjustable extension links to maintain proper tower clearance on assemblies at tower end. Jaw ends are supplied with bolt, nut, and humpback cotter pin. Remove BNK suffix for Type EE turnbuckles.

Material: Body – galvanized forged steel Cotter Pin – stainless steel

Type EE

Type JE

Type JJ

Product Data

Closed Coupling Length Inches (mm)

Wt Each lb (kg)

Diameter and Take Up Inches (mm)

Catalog Number

Type JJ

Type EE

Type JE

Type JJ

Type EE

Type JE

3/4 X 6 (19.1) (152.4)

15.1 (384) 21.5 (546) 27.5 (699) 22.7 (577) 29.1 (739) 17.8 (452) 23.8 (605) 29.8 (757) 36.4 (925) 27.4 (696) 33.4 (848)

17.2 (437) 23.6 (599) 29.6 (752) 24.7 (627) 31.2 (792) 20.2 (513) 26.2 (665) 32.2 (818) 38.8 (986) 30.1 (765) 36.1 (917)

16.2 (411) 22.6 (574) 28.6 (726) 23.7 (602) 30.2 (767) 19.0 (483) 25.0 (635) 31.0 (787) 37.6 (955) 28.8 (732) 34.8 (884)

4.6 (2.09) 6.0 (2.72) 7.7 (3.49) 8.4 (3.81) 10.7 (4.85) 9.7 (4.40) 11.0 (4.99) 14.8 (6.71) 18.2 (8.26) 23.8 (10.8) 27.5 (12.5) 33.7 (15.3) 38.1 (17.3) 44.2 (20.0) 48.4 (22.0)

3.89 (1.76) 5.43 (2.46) 7.0 (3.18) 7.4 (3.36) 9.6 (4.35) 9.0 (4.08) 11.2 (5.08) 13.8 (6.26) 17.1 (7.76) 20.9 (9.48) 25.7 (11.7) 29.7 (13.5) 29.0 (13.2) 35.2 (16.0) 40.7 (18.5)

4.3 (1.95) 5.7 (2.59) 7.3 (3.31) 7.9 (3.58) 10.2 (4.63) 9.4 (4.26) 11.6 (5.26) 14.3 (6.49) 17.6 (7.98) 22.4 (10.2) 26.6 (12.1) 31.7 (14.4) 33.5 (15.2) 39.7 (18.0) 44.5 (20.2)

TB34XX6BNK

12 (304.8) 18 (457.2)

TB34XX12BNK

TB34XX18BNK

7/8 X 12 (22.2) (304.8)

TB78XX12BNK

18 (457.2)

TB78XX18BNK

1 X 6 (25.4) (152.4)

TB1XX6BNK

12 (304.8) 18 (457.2) 24 (609.6)

TB1XX12BNK

TB1XX18BNK

TB1XX24BNK

11/4 X 12 (31.8) (304.8)

TB114XX12BNK

18 (457.2) 24 (609.6)

TB114XX18BNK

39.9 (1013) 28.8 (732) 34.8 (884 ) 41.4 (1052)

42.7 (1085)

41.3 (1049)

TB114XX24BNK

11/2 X 12 (38.1) (304.8)

32.2 (818) 38.2 (970)

30.5 (775) 36.5 (927)

TB112XX12BNK

18 (457.2) 24 (609.6)

TB112XX18BNK

44.9 (1140)

43.1 (1095)

TB112XX24BNK

NOTE: When ordering, replace XX with Type in Catalog Number. Example: TB34JJ6BNK for jaw-jaw end fittings with 6” take up . BNK suffix not valid for Type EE turnbuckles. Add “LN” suffix if jam nuts are required . The torque required to rotate the boss of a turnbuckle under tension can be calculated by the formula: T = 2 ( kdW/12 ) ft-lb Where: k = Friction factor (0.16) d = Nominal thread diameter (inches) W = Applied tension load (lb) Example: 3/4 turnbuckle under 4,000 lb tension T = 2(0.16 x 0.75 x 4000 / 12) = 80 ft-lb

September 2017