Helical Gear Rack
A helical gear rack is different from a spur gear rack. The teeth of the helical gear rack are twisted along a helical path in the axial direction. The tooth strength in the axial direction is improved because of the elongated helical wrap-around tooth base support, and the contact ratio is significantly increased because of the axial tooth overlap. So helical gear racks have greater load-carrying capacity.
Helical Gear Rack
A helical gear rack is different from a spur gear rack. The teeth of the helical gear rack are twisted along a helical path in the axial direction. The tooth strength in the axial direction is improved because of the elongated helical wrap-around tooth base support. The contact ratio is significantly increased because of the axial tooth overlap. So helical gear racks have greater load-carrying capacity.
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Helical Gear Rack(Finish Milled&Shaped)
| Precision Grade: (JIS Grade 5) 7e25 | Hardening: Tooth area carburized(HRC42-48) |
| Material:(S45C Medium Carbon Steel)C45 | Side Ground: Included |
| Type: Helical Rack | Pressure Angle: 20° |
| Treatment of Teeth: Milled | Right helix angle: 19°31′42″ |
Helical Gear Rack Specification：
| Module | L | L2 | Tooth No. | B | A0 | A1 | D | I | Hole No. | A | C1 | C2 | E | D1 | I1 | C3 | Pitch Error /300mm |
| 1 | 1000.00 | 3.14 | 300 | 15 | 15 | 14 | - | - | - | - | - | - | - | - | - | - | 0.02 |
| 1.5 | 1000.00 | 6.7 | 200 | 19 | 19 | 17.5 | 62.5 | 125 | 8 | 8 | 7 | 11 | 7 | 31.7 | 936.6 | 5.7 | 0.03 |
| 2 | 1000.00 | 8.5 | 150 | 24 | 24 | 22 | 62.5 | 125 | 8 | 8 | 7 | 11 | 7 | 31.7 | 936.6 | 5.7 | 0.031 |
| 2.5 | 1000.00 | 8.5 | 120 | 24 | 24 | 21.5 | 62.5 | 125 | 8 | 9 | 7 | 11 | 7 | 31.7 | 936.6 | 5.7 | 0.033 |
| 3 | 1000.00 | 10.3 | 100 | 29 | 29 | 26 | 62.5 | 125 | 8 | 9 | 10 | 15 | 9 | 35.0 | 930.0 | 7.7 | 0.035 |
| 4 | 1000.00 | 13.8 | 75 | 39 | 39 | 35 | 62.5 | 125 | 8 | 12 | 10 | 15 | 9 | 33.3 | 933.0 | 7.7 | 0.038 |
| 5 | 1000.00 | 17.4 | 60 | 49 | 39 | 34 | 62.5 | 125 | 8 | 12 | 14 | 20 | 13 | 37.5 | 925.0 | 11.7 | 0.04 |
| 6 | 1000.00 | 20.9 | 50 | 59 | 49 | 43 | 62.5 | 125 | 8 | 16 | 18 | 26 | 17 | 37.5 | 925.0 | 15.7 | 0.042 |
| 8 | 1000.00 | 28.7 | 36 | 79 | 79 | 71 | 60 | 120 | 8 | 25 | 22 | 33 | 21 | 120.0 | 720.0 | 19.7 | 0.045 |
| 10 | 1000.00 | 35.11 | 30 | 99 | 99 | 89 | 62.5 | 125 | 8 | 32 | 33 | 48 | 32 | 125.0 | 750.0 | 19.7 | 0.052 |
Helical Gear Rack and Pinion Product Information
| Process | Machining, Forging, Casting, Cutting |
| Material | C45（1045）, A3（low carbon steel）, 40Cr, 20CrMnTi, 42CrMo, Cast iron, Ductile iron, Copper, Stainless steel, and so on, as you requested |
| Heat Treatment | High-frequency quenching, Carburizing, Shot peening, Quenching, and Tempering, Nitriding |
| Surface Treatment | I am blacking, Hot-dip Galvanizing, Hard Chrome Plating, Zinc Plating, Electroplating, Nickel plating, Sandblasting, Color painting, Dacromet coating, Powder coating, and customer requirements. |
| Performance | Long lifespan, High precision, High wear resistance, High strength, Low noise, Smooth and steady, Fatigue strength |
| Model | ANSI, DIN, JIS Standard, Non-Standard, Spur Gears, Helical Gears, Straight Bevel Gears, Spiral Bevel Gears, Worm Gears, Gear Racks |
| Packaging | Products are carefully packaged, Inner plastic bags and outer carton boxes or customer requirement; after long-distance transport or long time store, open the package; brand new, no damage, no rust. |
Rack Types
Rack and pinion gears are available in two variations:
- Straight teeth have the tooth axis parallel to the axis of rotation. Straight teeth that run parallel to the axis of the gear.
- Helical teeth gears provide continuous engagement along the tooth length, are often quieter and more efficient than straight tooth gears, and offer higher loading for the same rack width. Helical tooth gears resemble spur gears in the rotation plane but include teeth twisted along a helical path in the axial direction.
Applications of Helical Gear Rack
Helical gear rack and pinion drives are perfect for a wide range of applications, including axis drives requiring precise positioning & repeatability, traveling gantries & columns, pick & place robots, CNC routers, and material handling systems. These drives can also easily handle heavy load capacities and duty cycles. Industries included Material Handling, Automation, Automotive, Aerospace, Machine Tool, and Robotics.
Helical Gear Rack Assembly Steps
To assemble connected racks more smoothly, 2 ends of a standard rack would add half a tooth which is convenient for the next half tooth of the next rack to be connected to a complete tooth. The following drawing shows how 2 racks connect, and the tooth gauge can control pitch position accurately.
Regarding the connection of helical racks, they can be connected accurately by opposite tooth gauges.
1. When connecting racks, we recommend first locking bores on the sides of the rack and then locking bores by the foundation sequence. With assembling the tooth gauge, the pitch position of racks can be assembled accurately and completely.
2. Last, lock rack the position pins on 2 srack; the assembly is completed.
Helical Rack and Pinion Gear Manufacturer
HZPT gear rack mechanical is well experienced in customizing all kinds of spur gear racks and helical gear racks, like alloy steel helical gear racks, stainless steel helical gear racks, metal helical gear racks, helical gear, and racks. Our shop can also manufacture the Nylon helical gear rack and the plastic helical gear rack and pinion. We are glad to provide professional service in gear rack manufacturing. Please get in touch with us with custom drawings.
Custom Helical Gear Racks
HZPT can produce custom spur and helical gear racks made to customer specifications:
1. State-of-the-Art CNC Rack Milling Machines
Our state-of-the-art CNC rack milling machines can cut teeth uninterrupted up to 82" – longer lengths through resetting.
2. Customer Requirements
All gear racks can be milled and matched for continuous travel and drilled/tapped per customer requirements. Your racks can be hardened, plated, coated, blasted, polished, or passivated per your needs.
3. Manufacturing Materials
Racks can be manufactured from mild steel, carbon steel, stainless steel, aluminum, brass, bronze, plastic, or other exotic materials in rectangular, square, round, and different shapes.
4. Modifications
Our state-of-the-art CNC Machining Centers can do modifications such as drilling, tapping, counter-boring, and intricate machining.
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FAQ
Q: Are you a trading company or manufacturer?
A: We are a manufacturer.
Q: Can you customize the products?
A: We have a professional R&D team to customize the products according to your requirements.
Q: Can you send us the samples for free?
A: You need to pay for the samples and freight; we will return them if we receive your big order later.
Additional information
| Editor | Yjx |
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