Spur Gears ITEMS SHOWN INCLUDE THOSE AVAILABLE ON EBAY:

Boston Gear ND12B Spur Gear 145 Pressure Angle Steel Inch 12 Pitch 0500
Boston Gear ND12B Spur Gear 145 Pressure Angle Steel Inch 12 Pitch 0500
$18.49
Time Remaining: 1d 12h 42m
Buy It Now for only: $18.49
Martin S2015 Spur Gear 145 Pressure Angle High Carbon Steel Inch 20 3 8
Martin S2015 Spur Gear 145 Pressure Angle High Carbon Steel Inch 20 3 8
$22.08
Time Remaining: 12d 17h 26m
Buy It Now for only: $22.08
BOSTON GEAR STEEL ND 16B SPUR GEAR 12 PITCH 5 8 BORE FOR LATHE MACHINE ETC
BOSTON GEAR STEEL ND 16B SPUR GEAR 12 PITCH 5 8 BORE FOR LATHE MACHINE ETC
$14.00
Time Remaining: 7d 15h 11m
Buy It Now for only: $14.00
Integy Metal Spur Gear 86T for Traxxas 1 10 Electric Rustler Stampede Slash 2WD
Integy Metal Spur Gear 86T for Traxxas 1 10 Electric Rustler Stampede Slash 2WD
$20.99
Time Remaining: 16d 7h 1m
Buy It Now for only: $20.99
BOSTON GEAR STEEL ND 21B SPUR GEAR 12 PITCH 5 8 BORE FOR LATHE MACHINE ETC
BOSTON GEAR STEEL ND 21B SPUR GEAR 12 PITCH 5 8 BORE FOR LATHE MACHINE ETC
$14.00
Time Remaining: 7d 14h 46m
Buy It Now for only: $14.00
BOSTON GEAR STEEL H3280 SPUR PINION GEAR 32 PITCH 80 TEETH 3 8 BORE CLOCK LATHE
BOSTON GEAR STEEL H3280 SPUR PINION GEAR 32 PITCH 80 TEETH 3 8 BORE CLOCK LATHE
$22.00
Time Remaining: 10d 6h 5m
Buy It Now for only: $22.00
Hot Racing STRF455 Steel Spur Gear 55T 48P 4Tec2
Hot Racing STRF455 Steel Spur Gear 55T 48P 4Tec2
$28.88
Time Remaining: 29d 7h 46m
Buy It Now for only: $28.88
Integy Heavy Duty Steel 36T Performance Spur Gear for Traxxas 1 10 Revo Slayer
Integy Heavy Duty Steel 36T Performance Spur Gear for Traxxas 1 10 Revo Slayer
$17.99
Time Remaining: 24d 17h 51m
Buy It Now for only: $17.99
Hot Racing Traxxas Slash 2wd 32p 58t Steel Spur Gear STE258
Hot Racing Traxxas Slash 2wd 32p 58t Steel Spur Gear STE258
$24.88
Time Remaining: 12d 20h 30m
Buy It Now for only: $24.88
20 Tooth 1 4 inch bore Spur gear Pinion gear
20 Tooth 1 4 inch bore Spur gear Pinion gear
$15.99
Time Remaining: 6d 5h 32m
Buy It Now for only: $15.99
Associated 3924 Spur Gear 66 Tooth 48 Pitch 66T 48P
Associated 3924 Spur Gear 66 Tooth 48 Pitch 66T 48P
$3.69
Time Remaining: 8d 12h 25m
Buy It Now for only: $3.69
Hot Racing Traxxas Electric Rustler Stampede 32p 60t Steel Spur Gear STE260
Hot Racing Traxxas Electric Rustler Stampede 32p 60t Steel Spur Gear STE260
$24.88
Time Remaining: 12d 22h 50m
Buy It Now for only: $24.88
Robinson Racing 8572 Traxxas T Maxx 25 Rustler 72 Tooth Steel Spur Gear NEW
Robinson Racing 8572 Traxxas T Maxx 25 Rustler 72 Tooth Steel Spur Gear NEW
$18.49
Time Remaining: 23d 15h 40m
Buy It Now for only: $18.49
Redcat Racing Spur Gear 87T for 18024 Everest 10 PART 18121
Redcat Racing Spur Gear 87T for 18024 Everest 10 PART 18121
$9.99
Time Remaining: 7d 10h 21m
Buy It Now for only: $9.99
Spur gear adapter 8mm Bore Size fit Serpent cobra gt Mugen MGT7E
Spur gear adapter 8mm Bore Size fit Serpent cobra gt Mugen MGT7E
$22.99
Time Remaining: 14d 4h 1m
Buy It Now for only: $22.99
BOSTON GEAR BRASS G146 SPUR PINION GEAR 48 PITCH 72 TEETH 1 4 BORE CLOCK LATHE
BOSTON GEAR BRASS G146 SPUR PINION GEAR 48 PITCH 72 TEETH 1 4 BORE CLOCK LATHE
$17.00
Time Remaining: 10d 5h
Buy It Now for only: $17.00
BOSTON SPUR GEAR BRASS Y 3240 32 PITCH 40 TEETH FOR LIVE STEAM LATHE MACHINE ETC
BOSTON SPUR GEAR BRASS Y 3240 32 PITCH 40 TEETH FOR LIVE STEAM LATHE MACHINE ETC
$21.00
Time Remaining: 6d 7h 37m
Buy It Now for only: $21.00
Redcat Racing Upgraded Hardened Steel Gears 64T Spur 17T Pinion Volcano EPX PRO
Redcat Racing Upgraded Hardened Steel Gears 64T Spur 17T Pinion Volcano EPX PRO
$15.95
Time Remaining: 5h 7m
Buy It Now for only: $15.95
Hot Racing Traxxas Revo 42t 10m Steel Spur Gear SRVO442
Hot Racing Traxxas Revo 42t 10m Steel Spur Gear SRVO442
$19.88
Time Remaining: 12d 21h 1m
Buy It Now for only: $19.88
HoBao Hyper 7 TQ Ofna  CENTER DIFFERENTIAL 46T SPUR GEAR  Case Bevel Cups Diff
HoBao Hyper 7 TQ Ofna CENTER DIFFERENTIAL 46T SPUR GEAR Case Bevel Cups Diff
$22.99
Time Remaining: 13d 10h 10m
Buy It Now for only: $22.99
Hot Racing STE872 TG Steel Spur Gear 72T 48P Traxxas 2wdNew
Hot Racing STE872 TG Steel Spur Gear 72T 48P Traxxas 2wdNew
$18.88
Time Remaining: 8d 5h 36m
Buy It Now for only: $18.88
Martin S2025 Spur Gear 145 Pressure Angle High Carbon Steel Inch 20 3 8
Martin S2025 Spur Gear 145 Pressure Angle High Carbon Steel Inch 20 3 8
$10.02
Time Remaining: 18d 1h 19m
Buy It Now for only: $10.02
Hot Racing Traxxas Slash 2wd 32p Steel 50t Spur Gear STE250
Hot Racing Traxxas Slash 2wd 32p Steel 50t Spur Gear STE250
$19.88
Time Remaining: 9d 7h
Buy It Now for only: $19.88
Robinson Racing 1855 Spur Gear Machined 48P 55T
Robinson Racing 1855 Spur Gear Machined 48P 55T
$4.29
Time Remaining: 6d 7h 50m
Buy It Now for only: $4.29
HD Hardened Steel Metal Spur Gear  Pinion Redcat Everest Maxstone Rock Crawler
HD Hardened Steel Metal Spur Gear Pinion Redcat Everest Maxstone Rock Crawler
$14.99
Time Remaining: 14d 18h 23m
Buy It Now for only: $14.99
Hot Racing Traxxas Slash 2wd 32p 54t Steel Spur Gear STE254
Hot Racing Traxxas Slash 2wd 32p 54t Steel Spur Gear STE254
$19.88
Time Remaining: 29d 13h 43m
Buy It Now for only: $19.88
Hot Racing Traxxas 1 16 E Revo Summit 48p 55t Steel Spur Gear SVXS855
Hot Racing Traxxas 1 16 E Revo Summit 48p 55t Steel Spur Gear SVXS855
$16.88
Time Remaining: 8d 3h 15m
Buy It Now for only: $16.88
Martin S1632 Spur Gear 145 Pressure Angle High Carbon Steel Inch 16 1 2
Martin S1632 Spur Gear 145 Pressure Angle High Carbon Steel Inch 16 1 2
$33.35
Time Remaining: 24d 7h 21m
Buy It Now for only: $33.35
HD Hardened Steel Spiral Helical Metal Spur Gear Pinion Axial SCX10 Wraith AX10
HD Hardened Steel Spiral Helical Metal Spur Gear Pinion Axial SCX10 Wraith AX10
$14.99
Time Remaining: 23d 3h 48m
Buy It Now for only: $14.99
3 Traxxas 90 Tooth Spur gear 48 Pitch 90T Stampede Slash Rustler Slash tra 4690
3 Traxxas 90 Tooth Spur gear 48 Pitch 90T Stampede Slash Rustler Slash tra 4690
$9.84
Time Remaining: 3d 2h 49m
Buy It Now for only: $9.84
HD RC spur to pinion gear adapter Fit Traxxas XO 1 6 mm Bore Size
HD RC spur to pinion gear adapter Fit Traxxas XO 1 6 mm Bore Size
$22.99
Time Remaining: 16h 18m
Buy It Now for only: $22.99
Hot Racing Traxxas Slash 2wd 48p Steel 73t Spur Gear STE873
Hot Racing Traxxas Slash 2wd 48p Steel 73t Spur Gear STE873
$18.88
Time Remaining: 9d 6h 58m
Buy It Now for only: $18.88
BOSTON GEAR BRASS Y 2427 SPUR PINION GEAR HEAVY PATINA NEEDS CLEANED 1 4 BORE
BOSTON GEAR BRASS Y 2427 SPUR PINION GEAR HEAVY PATINA NEEDS CLEANED 1 4 BORE
$6.00
Time Remaining: 10d 15h 22m
Buy It Now for only: $6.00
Redcat Racing Upgraded Hardened Steel Gears 64T Spur 21T Pinion Volcano EPX PRO
Redcat Racing Upgraded Hardened Steel Gears 64T Spur 21T Pinion Volcano EPX PRO
$15.95
Time Remaining: 5h 7m
Buy It Now for only: $15.95
Redcat Racing 55T Spur Gear
Redcat Racing 55T Spur Gear
$7.73
Time Remaining: 7d 2h 39m
Buy It Now for only: $7.73
Spur Gear 34T tooth for a Losi 6ix NNIP
Spur Gear 34T tooth for a Losi 6ix NNIP
$5.00
Time Remaining: 3d 11h 59m
Buy It Now for only: $5.00
Hot Racing Traxxas Electric Rustler Stampede 48p Aluminum 90t Spur Gear TE890H
Hot Racing Traxxas Electric Rustler Stampede 48p Aluminum 90t Spur Gear TE890H
$18.88
Time Remaining: 28d 9h 13m
Buy It Now for only: $18.88
Team Associated 6695 Precision Spur Gear 48P 87T
Team Associated 6695 Precision Spur Gear 48P 87T
$5.99
Time Remaining: 11d 12h 25m
Buy It Now for only: $5.99
3 Traxxas 86 Tooth Spur gear 48 Pitch 86T Stampede Slash Rustler Slash tra 4686
3 Traxxas 86 Tooth Spur gear 48 Pitch 86T Stampede Slash Rustler Slash tra 4686
$9.84
Time Remaining: 18d 15h 18m
Buy It Now for only: $9.84
4 Packs Traxxas 3955 Spur Gear 40T Mod 1 Pitch For Revo 33 NEW
4 Packs Traxxas 3955 Spur Gear 40T Mod 1 Pitch For Revo 33 NEW
$9.99
Time Remaining: 9d 56m
Buy It Now for only: $9.99
Kyosho Inferno GT2 Nitro  2 SPEED TRANSMISSION  Spur Gears rod IG107 KYO31834B
Kyosho Inferno GT2 Nitro 2 SPEED TRANSMISSION Spur Gears rod IG107 KYO31834B
$41.49
Time Remaining: 9d 20h
Buy It Now for only: $41.49
HD Hardened Steel 87T Metal Spur Gear Slipper Pinion Axial SCX10 SMT10 AX10
HD Hardened Steel 87T Metal Spur Gear Slipper Pinion Axial SCX10 SMT10 AX10
$14.99
Time Remaining: 6d 9m
Buy It Now for only: $14.99
Robinson Racing R C 64 pitch Spur Gears
Robinson Racing R C 64 pitch Spur Gears
$20.00
Time Remaining: 12d 10h 52m
Buy It Now for only: $20.00
Hard Steel 72T TOOTH SPUR GEAR for TRAXXAS T MAXX 15 25
Hard Steel 72T TOOTH SPUR GEAR for TRAXXAS T MAXX 15 25
$17.99
Time Remaining: 24d 17h 53m
Buy It Now for only: $17.99
Vaterra 232053 Spur Gear 65 Tooth 48p V100
Vaterra 232053 Spur Gear 65 Tooth 48p V100
$6.72
Time Remaining: 23d 2h 46m
Buy It Now for only: $6.72
Traxxas T Maxx 33 Jato 25  33 58T Steel Spur Gear 58 Tooth by Integy
Traxxas T Maxx 33 Jato 25 33 58T Steel Spur Gear 58 Tooth by Integy
$15.99
Time Remaining: 22d 6h 40m
Buy It Now for only: $15.99
Redcat Racing Blackout XTE SC XBE Pro Rear Open Differential w Spur Drive Gear
Redcat Racing Blackout XTE SC XBE Pro Rear Open Differential w Spur Drive Gear
$21.99
Time Remaining: 16d 10h 6m
Buy It Now for only: $21.99
Hot Racing Traxxas Slash 2wd 48p Steel 75t Spur Gear STE875
Hot Racing Traxxas Slash 2wd 48p Steel 75t Spur Gear STE875
$18.88
Time Remaining: 9d 6h 56m
Buy It Now for only: $18.88
Hot Racing SJT254 Traxxas Slash 4X4  Rally VXL 54T 32P Steel Spur Gear
Hot Racing SJT254 Traxxas Slash 4X4 Rally VXL 54T 32P Steel Spur Gear
$20.88
Time Remaining: 19d 16h 58m
Buy It Now for only: $20.88
Martin S1632BS 5 8 Spur Gear 145 Pressure Angle High Carbon Steel Inch 16
Martin S1632BS 5 8 Spur Gear 145 Pressure Angle High Carbon Steel Inch 16
$22.38
Time Remaining: 22d 14h 25m
Buy It Now for only: $22.38
Hot Racing Dromida SC418 Steel 45T 6 Mod Spur Gear SDMD45M06
Hot Racing Dromida SC418 Steel 45T 6 Mod Spur Gear SDMD45M06
$17.88
Time Remaining: 29d 18h 29m
Buy It Now for only: $17.88
Redcat Blackout XTE XBE SC Pro Plastic Spur Gear  17T Motor Gear Pinion
Redcat Blackout XTE XBE SC Pro Plastic Spur Gear 17T Motor Gear Pinion
$12.30
Time Remaining: 18d 3h 4m
Buy It Now for only: $12.30
BOSTON GEAR BRASS Y3248 SPUR PINION GEAR 32 PITCH 48 TEETH 1 4 BORE CLOCK LATHE
BOSTON GEAR BRASS Y3248 SPUR PINION GEAR 32 PITCH 48 TEETH 1 4 BORE CLOCK LATHE
$17.00
Time Remaining: 10d 4h 1m
Buy It Now for only: $17.00
Redcat Racing Plastic 48T 8 Module Spur Gear for Caldera 10E SC XB
Redcat Racing Plastic 48T 8 Module Spur Gear for Caldera 10E SC XB
$8.40
Time Remaining: 27d 14h 43m
Buy It Now for only: $8.40
Hot Racing Traxxas 4Tec 20 Steel 70T Spur Gear STRF470
Hot Racing Traxxas 4Tec 20 Steel 70T Spur Gear STRF470
$23.88
Time Remaining: 1d 13h 55m
Buy It Now for only: $23.88
Arrma OUTCAST 6s BLX CENTER DIFFERENTIAL diff 50t spur gear typhon AR106021
Arrma OUTCAST 6s BLX CENTER DIFFERENTIAL diff 50t spur gear typhon AR106021
$26.97
Time Remaining: 11d 10h 50m
Buy It Now for only: $26.97
Hardened Steel 8mm RC Spur Gear Adapter 1Pcs
Hardened Steel 8mm RC Spur Gear Adapter 1Pcs
$26.99
Time Remaining: 4d 17h 33m
Buy It Now for only: $26.99
Robinson Racing 1860 48P Pro Machined Spur Gear 60T
Robinson Racing 1860 48P Pro Machined Spur Gear 60T
$4.29
Time Remaining: 24d 4h 57m
Buy It Now for only: $4.29
BOSTON GEAR STEEL H2424 SPUR PINION GEAR 24 PITCH 24 TEETH 3 8 BORE CLOCK LATHE
BOSTON GEAR STEEL H2424 SPUR PINION GEAR 24 PITCH 24 TEETH 3 8 BORE CLOCK LATHE
$17.00
Time Remaining: 10d 5h 15m
Buy It Now for only: $17.00
Boston Gear NB12B Spur Gear 145 Pressure Angle Steel Inch 16 Pitch 0375 Bo
Boston Gear NB12B Spur Gear 145 Pressure Angle Steel Inch 16 Pitch 0375 Bo
$19.38
Time Remaining: 16d 14h 28m
Buy It Now for only: $19.38

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Spur+Gears

Importance of quality helical gears by AnilKumar

Every machine is made up of different sets of parts, whether it’s some industrial gears or your gears in your car. For a smooth functioning of every machine, it is important that all parts are in good condition. Most of the manufacturing industries use these gears. Gears are generally used in pairs that have teeth for transferring of momentum. These gears make it possible for the machine to work efficiently. Generally industrial gears are made of solid metal for a smoother torque and longer life period. There are lots of different types of gears that are used by various industries, such as spur gear, helical gear, bevels, pinions etc.
Most of the parts that you see in machines are either spur gears or helical gears. These two gears are pretty much identical in appearance; the biggest difference between the two is the way their teeth are projected. Spur gear teeth are parallel to the gear, whereas helical gear teeth are slightly angled for more power and making it less noisy. A spur gear cannot produce as much power as the helical gear. As helical gear can transmit much more torque than spur gear, thus most of the industries prefer helical gears over spur gear. Helical gears are used where more power transmission and speed are required with lesser noise. Spur gears are used in machine where not much power is required and volume of noise is not important.
Generally, helical gears are based on cylindrical shaped surface, thus the teeth are shaped like helix. The biggest advantage of the helical gears is that they are designed to make less noise. Basically, such parts are used in machines where noise is big concern, such as automobiles. It is very important that the automobile’s engines should be silent or does not make much noise. Helical gears are used for designing the engines to reduce the volume of noise. The reason why these gears make less noise is that they do not come in contact with the entire base at once. Because of this design, their teeth contacts one by one producing lesser noise and same efficiency. Spur gears make more noise because their whole teeth contact the surface at once, creating greater force but louder noise.
There are lots of industrial gears manufacturers that produce gears for different kinds of machines. For industrial gears, durability is a very big factor. The machines in which these gears are used are very expensive and their maintenance and service charges are very high. Therefore, it’s important for them to buy gears from a reputed and reliable industrial gears manufacturer. As helical gears are a very big part of the industrial machines, they are always in demand, and therefore, there are lots of helical gear manufacturer manufacturing this gear. Due to abundance of raw materials and cheap labor cost, India is one of the favorite and biggest manufacturer and exporter of these helical gears. There are several helical gears manufacturers in India that have a good reputation of manufacturing and exporting quality industrial gears.
For more info visit: http://industrialgearmanufacturer.com

For more info visit: http://industrialgearmanufacturer.com

Article Source: http://www.earticlesonline.com/Article/Importance-of-quality-helical-gears/1124591

RC How-To: Set your pinion-spur gear mesh by Sound

What torque can be applied to small thin plastic spur gears without damaging them?

I need to use a set of plastic gears, max 40mm in diameter to drive a toy lift that has to carry about 150grams. What torque can I risk applying without breaking the gears' teeth.

Any ideas whatsoever on what I need to calculate or check helps.
I think they're about 1mm thick.

impossible to say without knowing the material used, and thickness (width) of the toothed area.
suggest you get a spare set of gears and run tests to see at what load damage starts to appear.
150 grams is not a great load - if you overload the system, I'd say you are more likely to stall the motor (assuming that you are using an electric motor?) than damage the gear teeth.