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22-cog, 1.17" diameter nylon gear attached to 0.25" diameter, 5.75" long stainless steel axle. The 0.90" bare end of the axle is flatted. CAT# GR-133
2 for $1.00
Quantity:  
Minimum order of 2 pieces .
· Overall diameter: 26mm · Hub outer diameter: 24mm · Tire width: 9mm · Central bore: 1.9mm, fits 2mm axles · Product material: the center is ABS plastic, and... CAT# WH-28
4 for $1.50
New Item!
Quantity:  
Minimum order of 4 pieces .
 
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:  
Set of four metal axles, 8" long x 5mm diameter. CAT# AXL-8
$2.75 set of 4 pcs
New Item!
Quantity:  
 
Large set of 92 various sized plastic gears, racks, wheel set, pulleys, belts and axles. A lot of stuff at a nice price! CAT# GR-53
$9.95 set
New Item!
Quantity:  
Steel axle. 12" long x 1/8" (3mm) diameter. CAT# AXL-12
$1.00 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:  
12 x 18 x 16mm one-way needle bearing. Includes 12mm adapter for 8mm shaft with 10mm shank. CAT# BR-14
$2.00 each
10 or more    $1.50 each
Quantity:  
 
0.1" diameter thick x 2.6" overall diameter. CAT# FT-3
2 for $1.00
Quantity:  
Minimum order of 2 pieces .
Experimenter's Delight - Removed from used assembly. A belt-driven slotted shaft that probably caused a piston to oscillate attached to an optical encoder. Rotates in one direction only. 50mm long ... CAT# ENC-1
$0.50 each
Quantity:  
 
For school science projects. A set of two front and two rear plastic model race car wheels. Rear wheels, 40mm diameter x 17mm wide. Front wheels 34mm diameter x 4.5mm wide. Accepts 3mm diameter axl... CAT# DWH-1
$2.75 set
Quantity:  
For school science projects. Set of three red plastic pulleys, 50mm, 38mm, 25mm with 4mm hole. For axles see CAT#s AXL-12, AXL-25. CAT# PLY-3
$2.00 set
Quantity:  
 
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 0.075" ... CAT# GR-5
$3.50 each
10 or more    $3.00 each
Quantity:  
Shaft diameter 8mm. Thread diameter 12mm. Thread length 79mm. Overall length 130mm. 9 threads per inch. CAT# SFT-11
$1.25 each
10 or more    $1.00 each
Quantity:  
 
Set of two metal axles, 2.5" long x 1/8" diameter (63mm x 3mm). CAT# AXL-25
$0.50 pair
Quantity:  
 
 
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