# 25 roller chain. Mates with 1/4" pitch, #25 chain sprockets. For master link, see CAT# ML-25 CAT# CHN-25

2" diameter, 24 tooth metal sprocket for #25 roller chain. 13/32" (10mm) half-moon bore with 10mm collar. CAT# GR-100

INA BEARING CO # FC66141.6. 40 roller bearings in race with outer ring. Dimensions including outer ring: 3.03" O.D. x 2.2" I.D. x 0.16" high. CAT# BR-9

32mm diameter x 11mm wide. 8mm bore. CAT# GR-126

31.5mm o.d. x 19.5mm i.d. x 2mm thick. 20 roller bearings in race with outer ring. CAT# BR-18

KMC chain. 33.5" long, standard bicycle-type roller chain with 1/2" pitch (ANSI standard #40). 1/8" wide rollers. No master link. CAT# CHN-50

40mm diameter x 8.0mm wide. 8mm flatted bore. CAT# GR-127

Timken Torrington Needle Bearing # NTA-1625. 39mm O.D., 25.5mm I.D., 2.0mm thick. CAT# BR-19

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

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

0.325" bore. Doesn't mate with the other gears on our website. CAT# GR-105

42 tooth sprocket for #25 roller chain. 3.5" diameter. Attaches to 10mm (0.4") diameter half-moon shaft. 0.42" collar. CAT# GR-123

607Z SL. 19mm O.D. x 7mm I.D. x 6mm (0.75" O.D. x 0.29" I.D. x 0.24"). CAT# BR-21

8" long x 1.05" diameter aluminum roller on a 9.75" x 0.375" diameter metal axle. Ball bearings at both ends, NMB # RI-1438D. CAT# RW-7

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

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

12 x 18 x 16mm one-way needle bearing. Includes 12mm adapter for 8mm shaft with 10mm shank. This bearing and adapter are part of roller clutch assembly, CAT# CH-8. CAT# BR-14

CAT# ML-25

0.1" diameter thick x 2.6" overall diameter. CAT# FT-3

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

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

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

Shaft diameter 8mm. Thread diameter 12mm. Thread length 79mm. Overall length 130mm. 9 threads per inch. CAT# SFT-11

Eleven 0.25" diameter ball bearings. 1.27" O.D., 0.66" I.D. CAT# BR-10

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

0.69" diameter plastic wheel fits 1/4" diameter shaft. 0.5" wide overall. Has groove on one side that fits O-ring-type drive belt. CAT# PY-2