For gears to mesh correctly, they must have the same pressure angle and pitch. All of these gears transmit motion in a straight line—make sure to get one left-hand and one right-hand gear. To change speed and torque in your assembly, pair two gears with different numbers of teeth.
Parallel helical components have a 21 1/2° helix angle so they only transmit motion in a straight line since the helix angle is so small. Made from alloy steel, these gears resist abrasion and are stronger than carbon steel gears. Their teeth are ground, so they're more precise than gears with rolled teeth. Pair them with a rack or a gear that has a different tooth direction.
Crossed helical gears, also known as screw gears, can be configured to transmit motion at a 90° angle. To transmit motion at a 90° angle, pair two gears with the same tooth direction. To avoid wearing down gears, which happens when you use the same material, we recommend mating gears with different materials. Made from carbon steel, these gears are strong, but not as strong as alloy steel gears.
Hub
Keyway
Left Hand
Right Hand
Gear
Pitch Number
of Teeth Helix
Angle Gear
Pitch Dia. OD Face
Wd. Overall
Wd. For Shaft
Dia. Teeth Heat
Treatment Dia. Wd. Wd. Dp. Set Screw
Thread Size Each Each
Keyed Bore with Set Screw—1137 Carbon Steel
16 16 45° 1" 1.09" 1/2" 1" 1/2" Hardened 0.86" 0.5" 0.125" 0.062" 1/4"-20 2585N11 $67.93 2585N12 $67.93
16 24 45° 1 1/2" 1.59" 1/2" 1" 5/8" Hardened 1.37" 0.5" 0.187" 0.094" 1/4"-20 2585N13 87.80 2585N14 87.80
16 32 45° 2" 2.09" 1/2" 1" 5/8" Hardened 1.87" 0.5" 0.187" 0.094" 1/4"-20 2585N15 106.09 2585N16 106.09
16 48 45° 3" 3.09" 1/2" 1" 5/8" Hardened 2.5" 0.5" 0.187" 0.094" 1/4"-20 2585N17 147.95 2585N18 147.95
12 18 45° 1 1/2" 1.62" 3/4" 1.25" 5/8" Hardened 1.34" 0.5" 0.187" 0.094" 1/4"-20 2585N22 89.16 2585N23 89.16
Metric Parallel Gears—20° Pressure Angle
Hub
Left Hand
Right Hand
Module Number
of Teeth Helix
Angle Gear Pitch
Dia., mm OD,
mm Face
Wd., mm Overall
Wd., mm For Shaft
Dia., mm Teeth Heat
Treatment Dia.,
mm Wd.,
mm Each Each
Round Bore—4140 Alloy Steel
1 20 21 1/2° 20 22 8 18 6 Hardened 17 10 3598N159 $91.98 3598N161 $91.98
1 30 21 1/2° 30 32 8 18 10 Hardened 25 10 3598N171 105.80 3598N172 105.80
1 44 21 1/2° 44 46 8 18 10 Hardened 30 10 3598N182 124.26 3598N183 124.26
Metric Parallel Gear Racks—20° Pressure Angle
Left Hand
Right Hand
Module Lg.,
mm Helix
Angle Pitch
Ht., mm Ht.,
mm Face
Wd., mm Teeth Heat
Treatment Each Each
4140 Alloy Steel
1 100 21 1/2° 14 15 8 Not Hardened 3598N263 $170.31 3598N264 $170.31
1 500 21 1/2° 14 15 8 Not Hardened 3598N272 610.53 3598N273 610.53
Metric Crossed Gears—20° Pressure Angle
Hub
Left Hand
Right Hand
Module Number
of Teeth Helix
Angle Gear Pitch
Dia., mm OD,
mm Face
Wd., mm Overall
Wd., mm For Shaft
Dia., mm Teeth Heat
Treatment Dia.,
mm Wd.,
mm Each Each
Round Bore—Black-Oxide 1045 Carbon Steel
1 13 45° 18 20.38 10 20 6 Not Hardened 15 10 3598N289 $17.31 3598N291 $17.31
1 26 45° 36 38.77 10 20 10 Not Hardened 30 10 3598N296 26.38 3598N297 26.38
1 30 45° 42 44.43 10 20 10 Not Hardened 35 10 3598N298 29.81 3598N299 29.81
1.5 10 45° 21 24.21 15 25 8 Not Hardened 16 10 3598N276 19.74 3598N277 19.74
1.5 13 45° 27 30.58 15 25 10 Not Hardened 23 10 3598N278 22.87 3598N279 22.87
1.5 26 45° 55 58.15 15 25 12 Not Hardened 40 10 3598N285 44.17 3598N286 44.17
本网站所涉及到的品牌logo,产品图片所有权均归原厂原公司所有
