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Special Small Plastic Dual Gear 16mm For Derailleur Corrosion Resistance

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Special Small Plastic Dual Gear 16mm For Derailleur Corrosion Resistance

Brand Name : VDL

Model Number : PG1630

Certification : ISO

Place of Origin : China

MOQ : Negotiation

Price : Negotiation

Payment Terms : L/C, T/T, Western Union , Paypal

Supply Ability : 300 , 000 pcs per month

Delivery Time : 30 days

Packaging Details : 5000 pcs in bulk each carton with 20 X 22 X25 cm , 500 cartons for a 20 ft container

Material : ABS

Modulus : 0.5

Teeth Number : 30

Reference Circle : 15

OD : 16

Gear Style : Dual

Pressure Angle : 20°

Fire Resistance : UL94V-2

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Special Small Plastic Dual Gear 16mm For Derailleur Corrosion Resistance

Plastic dual gears with special design for derailleur , a pin socket hole in the centre of small gear , four supporting beams are placed between pin hole and small gear .

Dual gears with a double different reference circles gears so that meet different speed requests under same power feeding , both gears have a same modulus .

Material

Duplex gears are made from plastic ABS

Technical Data

Modulus m  0.5
Number of teeth z 30
Outside diameter da  16
Root diameter df  13.75
Reference circle d  15
Depth of tooth h  1.12
Tooth addendum ha  0.5
Tooth Dedendum hf  0.625
Pitch p  1.57
Teeth thickness s  0.8
Pressure angle ɑ  20°

Unit : mm Big gear in duplicate gears

Modulus m  0.5
Number of teeth z  16
Outside diameter da  9
Root diameter df  6.75
Reference circle d 8
Depth of tooth h  1.12
Tooth addendum ha  0.5
Tooth Dedendum hf  0.625
Pitch p  1.57
Teeth thickness s  0.8
Pressure angle ɑ  20°

Unit : mm Small gear in duplicate gears

Precision

Level 9 based on ISO standard .

Application

Plastic duplicate gears are mainly used to derailleur that for toy car , plane etc .

Thermal Performance

Specific volume resistance Ω·cm 15
Thermal conductivity BTU-in/hr-ft2-°F 1.1
Distortion temperature ( 1.8 Mpa ) -°F 195
Normal working temperature ℃ -40~100
Brittle temperature ℃ -60℃
Melting temperature ℃ 217~237
Pyrogenic decomposition temperature ℃ 250
Dielectric constant 2.7~3.2

Mechanical Property

Tensile strength Mpa 61
Elongation at break % 10~15
Bending strength MPa 79
Modulus of elasticity MPa 2000
Modulus of bending KSI 300
Notched Impact Strength(kg/cm2) 18
HR hardness 116
Modulus of elasticity for tension MPa ( 23℃) 2300

Physical Performance

Density ( g/cm3) 1.1
Water absorption % (23°C, 24 hr) 0.3
Shrinkage % 0.5

Features

Perfect insulation

ABS dual gears are operated in the most surroundings conditions and are effected by temperature , moisture and use frequency .

Corrosion resistance

ABS dual gears are operated in the most surroundings conditions and are effected by temperature , moisture and use frequency .

s are available for water ,mineral salt ,alkali and acid .

Water proof

Water absorption is below 1%

Fire resistance

Fire resistance level is UL94V-2

Stable chemical performance

Heat proof

Melting temperature is 217~237℃

Resistance to wear

Oils proof

Wide temperature

ABS dual gears are operated in the most surroundings conditions and are effected by temperature , moisture and use frequency .

can be worked in -40~100℃

More plastic gears we manufactured

We provide more plastic gears except duplicate gears , eg , spur gears ,bevel gears ,plastic gears for reducer ,worm gears and involute gear .


Product Tags:

custom plastic gears

      

lubricating plastic gears

      
Wholesale Special Small Plastic Dual Gear 16mm For Derailleur Corrosion Resistance from china suppliers

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