Involute Gear

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What is the Difference between cycloidal gears and involute gears?

whats the difference! they both seem like gears to me! :S

The cycloidal gear profile is a form of toothed gear used in mechanical clocks. The gear tooth profile is based on the epicycloid and hypocycloid curves, which are the curves generated by a circle rolling around the outside and inside of another circle, respectively.
http://en.wikipedia.org/wiki/Cycloid_gear

The involute gear profile is the most commonly used system for gearing today. In an involute gear, the profiles of the teeth are involutes of a circle. (The involute of a circle is the spiraling curve traced by the end of an imaginary taut string unwinding itself from that stationary circle called the base circle.)
http://en.wikipedia.org/wiki/Involute_gear

Nearly all practical gears now have involute tooth profiles. The involute tooth has great advantages in ease of manufacture, interchangeability, and variability of centre-to-centre distances. Originally, however, cycloidal profiles were used. Cycloidal profiles are as technically suitable as involute profiles, perhaps even slightly superior in some respects. They were satisfactory when gears were specially made in mating pairs, and were expensive. Accurate involute teeth became much easier and cheaper to produce; together with their other advantages, they have completely supplanted cycloidal gears.
http://mysite.du.edu/~etuttle/tech/cycloid.htm

Discover Involute Gear On eBay Below:

ONE Involute BEVEL Gear Cutter 7 DP 35 or 7 14 1 2 PA NATIONAL
ONE Involute BEVEL Gear Cutter 7 DP 35 or 7 14 1 2 PA NATIONAL
$39.00
ONE Involute BEVEL Gear Cutter 8 DP 1 or 6 or 8 14 1 2 PA NATIONAL B
ONE Involute BEVEL Gear Cutter 8 DP 1 or 6 or 8 14 1 2 PA NATIONAL B
$39.00
ONE Involute BEVEL Gear Cutter 10 DP 1 OR 5 14 1 2 PA 7 8 BORE NATIONAL
ONE Involute BEVEL Gear Cutter 10 DP 1 OR 5 14 1 2 PA 7 8 BORE NATIONAL
$35.00
ONE Involute BEVEL Gear Cutter 12 DP 5 OR 1 14 1 2 PA NATIONAL 12 PITCH
ONE Involute BEVEL Gear Cutter 12 DP 5 OR 1 14 1 2 PA NATIONAL 12 PITCH
$35.00
USED WESSTROM INVOLUTE GEAR CUTTER 22W 441 M5 Nr3 17 20K Fr Dj 1079 Pr
USED WESSTROM INVOLUTE GEAR CUTTER 22W 441 M5 Nr3 17 20K Fr Dj 1079 Pr
$35.00
Set 8Pcs Dp10 PA14 1 2 Bore 1 8 Involute Gear Cutters
Set 8Pcs Dp10 PA14 1 2 Bore 1 8 Involute Gear Cutters
$175.00
Set 8Pcs Module 125 PA20 Bore22 1 8 Involute Gear Cutters
Set 8Pcs Module 125 PA20 Bore22 1 8 Involute Gear Cutters
$130.00
USED WESSTROM INVOLUTE GEAR CUTTER 22W R6 SPAN10 271
USED WESSTROM INVOLUTE GEAR CUTTER 22W R6 SPAN10 271
$20.00
Lot 1pcs Dp22 14 1 2 degree 7 Involute Gear Cutters No7 Dp22 Gear Cutter
Lot 1pcs Dp22 14 1 2 degree 7 Involute Gear Cutters No7 Dp22 Gear Cutter
$22.90
INVOLUTE GEAR CUTTER M08 PA20 HSS SET 8pcs USSR Modulfrser Satz
INVOLUTE GEAR CUTTER M08 PA20 HSS SET 8pcs USSR Modulfrser Satz
$78.00
Lot 8pcs M15 20 degree 1 8 Involute Gear Cutters HSS Module 15 Gear Cutter
Lot 8pcs M15 20 degree 1 8 Involute Gear Cutters HSS Module 15 Gear Cutter
$86.00
Lot 1pcs HSS M25 20 degree 6 Cutting Range 35 54 Teeth Involute Gear Cutter
Lot 1pcs HSS M25 20 degree 6 Cutting Range 35 54 Teeth Involute Gear Cutter
$18.00
Lot New 1pcs Dp5 14 1 2 degree 3 Involute Gear Cutters No3 Dp5 Gear Cutter
Lot New 1pcs Dp5 14 1 2 degree 3 Involute Gear Cutters No3 Dp5 Gear Cutter
$49.90
1Pcs Deep Counterbore Hss Involute Gear Shaper Cutter Module 4 PA 30 Dia 50mm
1Pcs Deep Counterbore Hss Involute Gear Shaper Cutter Module 4 PA 30 Dia 50mm
$119.90
1Pcs Deep Counterbore Hss Involute Gear Shaper Cutter Module 35 PA 30 Dia 50mm
1Pcs Deep Counterbore Hss Involute Gear Shaper Cutter Module 35 PA 30 Dia 50mm
$119.90
1Pcs Deep Counterbore Hss Involute Gear Shaper Cutter Module 5 PA 30 Dia 50mm
1Pcs Deep Counterbore Hss Involute Gear Shaper Cutter Module 5 PA 30 Dia 50mm
$123.90
Lot 1pcs HSS M225 20 degree 1 Cutting Range 12 13 Teeth Involute Gear Cutter
Lot 1pcs HSS M225 20 degree 1 Cutting Range 12 13 Teeth Involute Gear Cutter
$17.00
M125 20 PA 2 Bevel Involute Gear Cutter HSS Module 125 Cutting Range 14 16 T
M125 20 PA 2 Bevel Involute Gear Cutter HSS Module 125 Cutting Range 14 16 T
$18.00
HSS Module 55 20  PA 5 Cutting Range 26 34 Teeth M55 Involute Gear Cutter
HSS Module 55 20 PA 5 Cutting Range 26 34 Teeth M55 Involute Gear Cutter
$33.80
Lot 1pcs HSS M4 20 degree 3 Cutting Range 17 20 Teeth Involute Gear Cutter
Lot 1pcs HSS M4 20 degree 3 Cutting Range 17 20 Teeth Involute Gear Cutter
$21.80
Lot 1pcs HSS M4 20 degree 2 Cutting Range 14 16 Teeth Involute Gear Cutter
Lot 1pcs HSS M4 20 degree 2 Cutting Range 14 16 Teeth Involute Gear Cutter
$21.80
1Pcs Deep Counterbore Hss Involute Gear Shaper Cutter Module 3 PA 30 Dia 50mm
1Pcs Deep Counterbore Hss Involute Gear Shaper Cutter Module 3 PA 30 Dia 50mm
$116.90
Lot 1pcs HSS M4 20 degree 5 Cutting Range 26 34 Teeth Involute Gear Cutter
Lot 1pcs HSS M4 20 degree 5 Cutting Range 26 34 Teeth Involute Gear Cutter
$21.80
Lot 1pcs HSS M4 20 degree 4 Cutting Range 21 25 Teeth Involute Gear Cutter
Lot 1pcs HSS M4 20 degree 4 Cutting Range 21 25 Teeth Involute Gear Cutter
$21.80
1Pcs Deep Counterbore Hss Involute Gear Shaper Cutter Module 35 PA 30 Dia 75mm
1Pcs Deep Counterbore Hss Involute Gear Shaper Cutter Module 35 PA 30 Dia 75mm
$129.90
Lot 1pcs HSS M4 20 degree 1 Cutting Range 12 13 Teeth Involute Gear Cutter
Lot 1pcs HSS M4 20 degree 1 Cutting Range 12 13 Teeth Involute Gear Cutter
$21.80
Lot 1pcs HSS M4 20 degree 6 Cutting Range 35 54 Teeth Involute Gear Cutter
Lot 1pcs HSS M4 20 degree 6 Cutting Range 35 54 Teeth Involute Gear Cutter
$21.80
8PCS Gear Milling Cutter HSS 8H Set 8 Pcs DP16 PA14 1 2 Bore22 No1 8 Involute
8PCS Gear Milling Cutter HSS 8H Set 8 Pcs DP16 PA14 1 2 Bore22 No1 8 Involute
$56.95
INVOLUTE GEAR CUTTER M06 PA20 HSS SET 8PCS USSR Modulfrser Satz
INVOLUTE GEAR CUTTER M06 PA20 HSS SET 8PCS USSR Modulfrser Satz
$75.00
New Set 8Pcs Module 125 PA20 Bore22 1 8 Involute Gear Cutters
New Set 8Pcs Module 125 PA20 Bore22 1 8 Involute Gear Cutters
$130.00
New Set 8Pcs Dp10 PA14 1 2 Bore 1 8 Involute Gear Cutters
New Set 8Pcs Dp10 PA14 1 2 Bore 1 8 Involute Gear Cutters
$175.00
Set 8Pcs Module 1 PA20 Bore22 1 8 Involute Gear Cutters M M S
Set 8Pcs Module 1 PA20 Bore22 1 8 Involute Gear Cutters M M S
$125.97
Set 8Pcs Module 15 PA20 Bore22 1 8 Involute Gear Cutters M M S
Set 8Pcs Module 15 PA20 Bore22 1 8 Involute Gear Cutters M M S
$129.96
Set 8Pcs Dp18 PA14 1 2 Bore22 1 8 Involute Gear Cutters M M S
Set 8Pcs Dp18 PA14 1 2 Bore22 1 8 Involute Gear Cutters M M S
$139.96
8 Module Milling Cutter Involute Gear HSS 63 x22 Mod2 25 20 Nr1 2 3 4
8 Module Milling Cutter Involute Gear HSS 63 x22 Mod2 25 20 Nr1 2 3 4
$183.11
8 Module Milling Cutter Involute Gear HSS 55 x22 Mod1 75 20 Nr1 2 3 4
8 Module Milling Cutter Involute Gear HSS 55 x22 Mod1 75 20 Nr1 2 3 4
$154.12
Lot 8pcs Dp12 14 1 2degree 1 8 Involute Gear Cutters
Lot 8pcs Dp12 14 1 2degree 1 8 Involute Gear Cutters
$98.00
Lot 1pcs Dp14 14 1 2 degree 7 Involute Gear Cutters No7 Dp14 Gear Cutter
Lot 1pcs Dp14 14 1 2 degree 7 Involute Gear Cutters No7 Dp14 Gear Cutter
$22.90
Lot 1pcs HSS M125 20 degree 4 Cutting Range 21 25 Teeth Involute Gear Cutter
Lot 1pcs HSS M125 20 degree 4 Cutting Range 21 25 Teeth Involute Gear Cutter
$16.00

Recently Purchased Involute Gear:


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