CATALOG 50

GTC BEARING SYSTEM PIVOT PINS

Pivot Pins

Path Maker

Bearings

Use for pinning your folding knives. Precision machined from stainless steel, nickel silver or brass. We offer a 1/4" head with 3/16" body, and stainless button head screw is threaded 6-32. The larger size has a 5/16" head and .196 diameter body, and a stainless steel button head screw threaded 8-32.

The illustration (above left) shows the pocket in the left liner once the procedure has been completed. The first bearing will fit in this pocket. The second pocket should be cut in the blade. In final assembly (see above right), the liner pocket and blade pocket should be facing up when the knife is in the proper position for assembly.

GTC 440C stainless steel thrust ball bearings caged in stainless steel retainers developed by Gustavo T. Cecchini's GTC Knives to reduce friction and failures, increase opening time, and easier cleaning. The 100% stainless steel construction eliminates the problems of other thrust bearings that are not 100% stainless. Install by cutting a pocket, with a counterbore, in both the blade and frame. Use one bearing in blade and one in the frame. Some prefer to cut the pocket in both frames, and not in the blade. This is a good solution when the blade is already hardened. Sold Each. BALL SIZE PRICE GC101 .354" .157" .062" Small - 1 2.95 GC111 .378" .218" .062" Med. - 2 2.95 GC121 .415" .255" .062" Large - 3 2.95 GC102 .454" .258" .078" Heavy - 4 2.95 CAT.# O.D. I.D. Select the counterbore to fit the bearing and pivot pin combination listed below, also listed are the proper depths to cut the pocket. SIZE 1 - SMALL BEARING (GC101) CAT.# SIZE PIVOT DEPTH PRICE RA855 23/64" 5/32" .050" 39.95 CAT.# SIZE PIVOT DEPTH PRICE RA863 25/64" 3/16" .050" 39.95 RA865 25/64" 5/32" .050" 39.95 SIZE 2 - MEDIUM BEARING (GC111) SIZE 4 - HEAVY DUTY BEARING (GC102) CAT.# SIZE PIVOT DEPTH PRICE RA874 27/64" 1/4" .050" 39.95 CAT.# SIZE PIVOT DEPTH PRICE RA884 15/32" 1/4" .066" 39.95 Reamers are .0005" oversize. Ream blade and liners for pivot pins. CAT.# SIZE PIVOT SIZE PIVOT PIN PRICE RA1570 .1570" 5/32" F80 & F82 11.95 RA1880 .1880" 3/16" F85 & F88 12.95 RA2505 .2505" 1/4" F96 & F98 14.95 SIZE 3 - LARGE BEARING (GC121) Counterbores Reamers

CAT.# DESCRIPTON MATERIAL PRICE

HP605 HP615 HP625 HP600 HP610 HP620

2.95 2.95 2.95 2.95 2.95 2.95

1/4"

Brass

1/4" Nickel Silver 1/4" Stainless 5/16" Nickel Silver 5/16" Stainless 5/16" Brass

Stainless Pivot Pin

There should be a raceway path on each side of a thrust bearing. The illustration above shows the right liner with the raceway path completed. This raceway matches up to the blade pocket thrust bearing. This procedure should be completed on both sides of the blade. This will match up with the raceway needed in the liner pocket thrust bearing. When finished you will have made a raceway path on all four bearing surfaces and you should be ready for assembly.

Drilled and tapped completely through for your custom folders. Supplied with two Button Head Torx screws. F5 2-56, F6 4-40. CAT. # BODY LENGTH HEAD PRICE F5 .125" .375" .162" 2.95 F6 .1875" .500" .210" 2.95

Stainless Step Pivots

Path Makers

Designed to press into liner for tight fit. The body of the pivot pins are machined .0005" undersized for proper action of your blade. Button Head Torx screw supplied. Length under the head is .50". Made in the USA.

CAT. # BODY HEAD

PRICE

F51B F51C F51A

2.95 2.95 2.95

.125"

.210"

5/32" .210" .1875" .245"

A bearing will be included with each Path Maker.

D-Lock Hinge Pins

Designed to keep hinge pins from turning during installation and fine adjusting. The locking liner usually has a D shaped hole for hinge pins, however, you can place the pin into the locking liner and interrupt the hole next to the flat by using an auto center punch to expand the metal, creating a protrusion to hold the pin in place. It does not take much stretching of the metal to keep the hinge pin from turning. Can be used in round holes.

SIZE 1 - SMALL BEARING

CAT.# SIZE PIVOT BEARING PRICE RA755 23/64" 5/32" GC101 19.95

SIZE 2 - MEDIUM BEARING

CAT.# SIZE PIVOT BEARING PRICE RA763 25/64" 3/16" GC111 19.95 RA765 25/64" 5/32" GC111 19.95

SIZE 3 - LARGE BEARING

CAT.# SIZE PIVOT BEARING PRICE RA774 27/64" 1/4" GC121 19.95

D-Lock Hinge Pin

Path Maker

SIZE 4 - HEAVY DUTY BEARING

CAT.# SIZE PIVOT BEARING PRICE RA784 15/32" 1/4" GC102 19.95

Designed for installation through the bolster. Complete installation using a T8 torx wrench to tighten the screw supplied. Overall length is .434", under the head is .373". Stainless Steel

Pivot Pins

Precision ground 303 Stainless steel (tolerance +/- .0005) for smooth action to work with the GTC Bearings and on other folders. Pivot pin comes with Torx head screws. 5/32" threaded 4-48, 3/16" and 1/4" threaded 6-48.

The Path Maker is used to provide a smooth raceway for the thrust bearing balls to slide along. The Path Maker is used in a drill press to mark the raceway into the blade and liners. This task is performed by setting your drill press at 500 RPM and applying a light down pressure for a few seconds. Check the surface for marking until a circular raceway is visible, then this task is complete. We recommend that you complete this task to the blade before and after heat treat to guarantee the elimination of all tooling marks. You will need a different Path Maker for each bearing size and each pivot size that you use. The final assembly should use new bearings only.

CAT. # BODY HEAD

PRICE

HP650

2.95

.195"

.247"

D-Lock Hidden Hinge Pin

CAT.# O.D. LENGTH HEAD TORX PRICE F80 5/32" .350" 7/32" T6 6.95 F82 5/32" .500" 7/32" T6 6.95 F85 3/16" .350" 1/4" T7 6.95 F88 3/16" .500" 1/4" T7 6.95 F96 1/4" .350" 5/16" T8 6 .95 F98 1/4" .500" 5/16" T8 6.95

Designed to be hidden under the bolsters. Use a T8 torx wrench to tighten. Overall length is .240", under the head is .205". Stainless Steel.

CAT. # BODY HEAD

PRICE

HP660

2.95

.156"

.216"

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PRICES SUBJECT TO CHANGEWITHOUT NOTICE