LD - Loadisc™ Reaction Washer

The LoaDisc™ is JETYD’s most cost effective way to remove the need for an external reaction arm to improve operator's safety and avoid side-load to achieve a calibrated bolt load accuracy measurement-free.

Loadisc™ Reaction Washer Overview

The LoaDisc™ eliminates all the drawbacks of hydraulic torque and tension tools by assuring failure-free startups, hands-free safe in half the time. When a LoaDisc™ is placed under a standard nut, torque can be applied without damaging or marring adjacent nuts, flanges or the tool.

The unique configuration of the LoaDisc™ turns the standard nut into a high accuracy device by removing uncontrolled flange friction and nut side loading. The LoaDisc™ provides the operator with a completely hands free and reaction free nut tightening operation.

The Loadisc™ functions like a simple washer placed under a conventional hex nut.

Each Loadisc™ has a threaded insert pressed into the bottom of the body. The Loadisc™ is installed on a bolted application just before the hex nut. Using a special socket the Loadisc™ body is utilized as a reaction point for applying torque to the hex nut. As the stud stretches during tightening the threaded insert travels upward and creates twisting resistance on the stud threads which eliminates the need for a backup wrench.

The LoaDisc™: Fast, Safe, Simple & Accurate

LoaDisc™ installed on bolt	Standard nut on LoaDisc™	During stretching of the bolt,the thread segment of the LoaDisc™ creates a counter nut effect and prevents the bolt from turning	Finished application

When ordering a LoaDisc for your application, check the following:

• Stud thread pitch
• Across flats of nut is less than that of the LoaDisc
• Stud extension is less than the max stroke of LoaDisc, include joint closure when determining this.
• Sufficient overhead clearance for tooling

BLANK	INCH BASIC SIZE	INCH THREAD PITCH	METRIC BASIC SIZE	METRIC THREAD PITCH	ACROSS FLATS PITCH	ACROSS FLATS METRIC	HEIGHT	TRAVEL
1	¾	10	20	2.5	1 ¼	32	0.720	0.473
2	7/8	9	24	3	1 7/16	37	0.795	0.544
3	1	8	27	3	1 5/8	41	0.890	0.597
4	1 1/8	8	30	3.5	1 13/16	46	0.890	0.595
5	1 ¼	8	33	3.5	2	51	0.925	0.626
6	1 3/8	8	36	4	3 3/16	81	1.005	0.586
7	1 ½	8	39	4	2 3/8	60	1.045	0.626
8	1 5/8	8	42	4.5	2 9/16	65	1.045	0.625
9	1 ¾	8	45	5	2 ¾	70	1.045	0.618
10	1 7/8	8	48	5	2 15/16	75	1.095	0.661
11	2	8	52	5	3 1/8	79	1.095	0.659
12	2 ¼	8	56	5.5	3 ½	89	1.210	0.684
13	2 ½	8	64	6	3 7/8	98	1.370	0.840
14	2 ¾	8	72	6	4 ¼	108	1.510	0.932
15	3	8	80	6	4 5/8	117	1.675	1.021
16	3 ¼	8	85	6	5	127	1.756	0.911
17	3 ½	8	90	6	5 3/8	137	1.867	1.022
18	3 ¾	8	100	6	5 ¾	146	1.978	1.133
19	4	8	-	-	6 1/8	-	2.089	1.244