Hinged bolt fasteners provide a flexible joint for belts operating over small pulleys. Because the joint is easily separated by simply removing the hinge pin, entire belt sections may be added or eliminated.

Designed as a compression fastener,the bolt hinged model is fastened to the belt ends with high strength bolts. These compress the plates into the belt cover. Additional holding capabilities is provided by the fastener teeth that imbed in the belt without damage to the belt carcass.

This combination distributes the splice tension across the entire plate width, while the teeth secure the fastener into the belt carcass to resist pull-out.

375X

Designed for belt conveyors with center distances less than 1000 feet.

For belts 1/4″ to 13/32″ thick.

Use on belts with mechanical fastener ratings up to 190 PIW.

Operates over 6″ minimum pulley diameter.

Fastener strips ensure a straight splice and faster installation.

Available in complete joints for various belt widths or in bulk fasteners without hinge pins.

550

For belts 1/4″ to 5/8″ thick.

Use on belts with mechanical fastener ratings up to 300 PIW.

Operates over 9″ minimum pulley diameters.

Available in complete joints for various belt widths or in bulk fasteners without hinge pins.

Most 550 steel joints are furnished with continuous, single-piece fastener strips (belt widths 24″, 30″, 36″, 42″ and 48″). These strips reduce installation time and insure a straight splice. These and other width joints are available, made up with individual fastener plates, for increased joint flexibility on deep-troughing idlers or where poor belt alignment is a problem.

750

For belts 9/16″ to 7/8″ thick.

Use on belts with mechanical ratings up to 400 PIW.

Operates over 20″ minimum pulley diameters.

Available in complete joints for various belt widths or in bulk fasteners without hinge pins. Individual steel plates are standard.

Fastener Selection Chart

wdt_ID Fastener Size PIW Mech. Fast. Rat. to: Belt Thick. Range Rec. Min. Pulley Dia. Oper. Tens.: 100% of Belt Rat. Rec. Min. Pulley Dia. Oper. Tens. Under 75% of Belt Rat.
1 375X 190 1/4" - 13/32" 6" 4"
2 550 300 1/4" - 5/8" 9" 7"
3 750 400 9/16" - 7/8" 20" 18"

Ordering Numbers

Each “J” carton contains one complete belt joint. This includes: fasteners, hinge pin, filler tubing, bolts and nuts; assembly clips and a gauge rod for easy installation. (The connected fastener strips, 375X and certain widths of 550 strip, do not require clips, so none are included.)

Ordering Numbers for Steel Fasteners

wdt_ID Belt Width 375X with Nylon Covered Steel Cable Part # 550 with Nylon Covered Steel Cable Part # 750 with Nylon Covered Steel Cable Part #
1 12" 375XJ12NC - -
2 14" 375XJ14NC - -
3 16" 375XJ16NC - -
4 18" 375XJ18NC 550J18NC -
5 20" 375XJ20NC 550J20NC -
6 24" 375XJ24NC 550J24NC -
7 30" 375XJ30NC 550J30NC -
8 36" 375XJ36NC 550J36NC 750J36NC
9 42" 375XJ42NC 550J42NC 750J42NC
10 48" 375XJ48NC 550J48NC 750J48NC
11 60" - 550J60NC -

Ordering Numbers for Stainless Steel Fasteners with Nylon Covered Stainless Cable

wdt_ID Belt Width 375X with Nylon Covered Steel Cable Part # 550 with Nylon Covered Steel Cable Part # 750 with Nylon Covered Steel Cable Part #
1 18" 375XSJ18NCS 550SJ18NCS -
2 24" 375XSJ24NCS 550SJ24NCS -
3 30" 375XSJ30NCS 550SJ30NCS -
4 36" 375XSJ36NCS 550SJ36NCS -
5 42" - 550SJ42NCS -
6 48" - 550SJ48NCS -

Note: Part numbers above include a Nylon Covered Steel Cable for steel fasteners and a Nylon Covered Stainless Steel Cable for stainless steel fasteners. For other cables, replace the “NC” or “NCS” in the above part numbers with the Hinge Pin suffix letters given below.

Hinge Pins for Bolt Hinged Lacing

SC - Bare Steel Cable

For conveying gritty or highly abrasive material, Bare Steel Cable (SC) is recommended. Offered for numbers 375X and 550 fasteners only.

NCS - Nylon Covered Stainless Steel Cable

For greater corrosion resistance, the Nylon Covered Stainless Steel Cable (NCS) is furnished standard with Stainless joints. In is notrecommended for use with deep troughing idlers over 35 º.

NC - Nylon Covered Steel Cable

The nylon coating reduces corrosion and makes pin insertion easier.

NB - Nylon Covered Bronze Cable

For a non-magnetic joint, use fully non-magnetic Nylon Covered Bronze Cable (NB) with Everdur fasteners.

SSC - Bare Stainless Steel Cable

Where corrosion attacks steel cable hinge pins, Bare Stainless Steel Cable (SSC) does the job. Not recommended for use with deep troughing idlers over 35 º.

NAC - Nylon Covered Armored Cable

The right hinge pin for many mining conditions is the Nylon Covereed Armored Cable (NAC). Long service life is due to the patented hinge pin design. It combines a durable, flat wire wrap around the cable which is covered by nylon for smooth operation.

Note: Bulk fastener sets, replacement bolts and nuts and extra hinge pins are available. Please call our TFE Customer Service Department for availability.

Bolt Hinged Installation Tools and Supplies

Curved Templates

Used in conjunction with the “clip and gauge rod” method to install complete joints, the templet acts as a guide to accurately punch or drill holes into the belt ends. This insures proper fastener alignment.

Templets are available for all sizes of Bolt Hinged fasteners. They come in lengths for standard belt widths. See table below for ordering information.

Curved Templets for Bolt Hinged Fasteners

wdt_ID Belt Width 375X Part # 550 Part # 750 Part #
1 18" 375X-18 518 -
2 20" 375X-20 500 -
3 24" 375X-24 524 -
4 30" 375X-30 530 -
5 36" 375X-36 536 -
6 42" 375X-42 542 -
7 48" 375X-48 548 748
8 60" 375X-60 560 -

Hand or Power Tools for Bolt Hinged Fasteners

In addition to a templet or aligning holder, the following hand or power tools are required for installation: a punch or a boring bit (the punch is preferred for general use and where the belt cover is over 3/16″ thick); a wrench (a different wrench is required for stainless fasteners, which are furnished with slotted nuts); and a bolt breaker.

A power impact wrench cuts application time to approximately 50%. It should be used with a “quick change chuck” which adapts the tools to the square drive stud on an air or electric impact wrench.

Hand Tool Ordering Numbers

wdt_ID Fastner Number Bolt Hole Diameter Punch Part # Boring Bit Part # Wrench Part # Bolt Breaker Part #
1 375X & 550 1/4" P1P B1B 100 (S1S*) 110
2 750 3/8" P3P B3B S3S 113

*Note: S1S and HW1 are for use with Stainless Steel Nuts

Quick Change Chuck

To use power tools, a Quick Change Chuck is required. This adapts tools to the square drive stud on air or electric impact wrenches.

Quick Change Chuck for Bolt Hinged Fasteners

wdt_ID Fastener Size Drive Size Part #
1 375X & 550 1/2" 5552
Hinged Bolt Type Fasteners