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12 tooth nylon sprocket for #25 chain. 6.5mm flatted bore. 0.5" long collar. CAT# GR-87
$1.00 each
Quantity:  
2" diameter, 24 tooth metal sprocket for #25 roller chain. 13/32" (10mm) half-moon bore with 10mm collar. CAT# GR-100
$1.50 each
Quantity:  
 
32mm diameter x 11mm wide. 8mm bore. CAT# GR-126
$0.75 each
Quantity:  
38mm diameter x 7mm wide. 9mm collar with 6mm bore. Mates with gear on SMT-119 and others. CAT# GR-121
$0.50 each
Quantity:  
 
40mm diameter x 8.0mm wide. 8mm flatted bore. CAT# GR-127
$1.50 each
Quantity:  
Four matched unbreakable plastic gears. The three larger gears are beveled on one side and can mesh at 90 degrees as well as the normal 180 degree angle. They have 5mm bores. Inserts are supplie... CAT# GR-86
$2.25 each
Quantity:  
 
Made for a Kodak 35mm film scanner, this high-quality plastic gear train contains four gears. Three are identical dual gears with 36 and 10 teeth. The other has 18 and 22 teeth. The unit snaps toge... CAT# GR-131
$2.25 each
Quantity:  
0.325" bore. Doesn't mate with the other gears on our website. CAT# GR-105
119 Available
$0.50 each
Web Only!
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42 tooth sprocket for #25 roller chain. 3.5" diameter. Attaches to half-moon shaft. CAT# GR-123
$2.00 each
Quantity:  
44 tooth metal cog pulley. 28mm dia. x 11mm wide. 2mm pitch. Mates with our belt, CAT# CGB-660. 10mm bore with 3mm holes for fastening pin (not included). CAT# GR-119
$0.75 each
Quantity:  
 
Cogbelt: Gates 423W00648 148MC. 3mm pitch. 350mm circumference x 6mm wide. Cogpulley: 3mm pitch. Metal pulley with 14 cogs. 0.325" diameter flatted bore. 27mm diameter nylon gear - mates wi... CAT# GR-122
$3.50 each
Quantity:  
Black plastic compound gear. The smaller gear is 0.28" wide, has 14 teeth and a dia. of 0.53". The larger gear is 0.46" wide, has 21 teeth and a diameter of 0.77". 6 mm (0.24") bore. CAT# GR-78
$0.50 each
Quantity:  
 
Velleman Kits # KNS7. Fun with gears and motors. Small 3 Vdc motor, metal bracket and axles, and an assortment of small plastic gears and collars to produce a gear train of various ratios. Note: ... CAT# GR-84
$11.95 each
Quantity:  
Roller clutch with one-way bearing. Rotates freely in one direction; fixed in other direction. 15 tooth sprocket for 1/4" Number 25 roller chain. Fits 8mm shaft with 10mm collar. 3mm hole for rete... CAT# CH-10
93 Available
$6.50 each
Web Only!
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Five matched break-resistant plastic gears ranging from 0.44" diameter (10 teeth) to 2.02" (50 teeth). Gears are molded with 0.15" (4mm) bores and come with inserts which reduce the bore to 0.065" ... CAT# GR-5
$2.75 each
10 or more    $2.00 each
Quantity:  
Two nylon gears: 26 cog, 1.08" diameter x 0.27" wide. 0.18" collar. 0.25" diameter bore. 34 cog, 1.41" diameter x 0.23" wide. 0.1" collar. 0.33" diameter flatted bore. CAT# GR-109
$1.75 each
Quantity:  
 
Two 22-cog, 1.17" diameter nylon gears with 5.8" stainless steel axle. The 0.25" diameter axle is attached to one gear. The other end is flatted and mates with the other gear. CAT# GR-40
474 Available
$1.00 each
Web Only!
Quantity:  
 
 
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