Milled Tempered & Quenched Straight Tetragonal Chromium Molybdenum Alloy Steel(SCM4402) Gear Rack
The GBC Milled Tempered & Quenched Straight Tetragonal Chromium Molybdenum Alloy Steel (SCM4402) Gear Rack MSTMQ series stands out for its exceptional durability and strength. Manufactured using advanced techniques, this gear rack offers superior resistance to wear and corrosion, making it ideal for demanding applications. With precise engineering, GBC ensures enhanced performance and reliability, catering to suppliers and manufacturers seeking top-quality components for their projects. Experience the unmatched quality and efficiency that only GBC can provide.
Introduction
The Milled Tempered & Quenched Straight Tetragonal Chromium Molybdenum Alloy Steel (SCM4402) Gear Rack is engineered for exceptional strength and durability. Made from high-quality alloy steel, it features precision tooth profiles that ensure smooth operation and reliable performance. This gear rack is widely used in machinery and automation applications, providing enhanced efficiency. Our product stands out due to its superior heat treatment processes, ensuring longevity and resistance to wear, making it an ideal choice for demanding environments.
Product Specifications

| 型号 Code |
模数 Module |
L | 齿数 Tooth No. |
B | AO | A1 | D | I | 孔数 Hole No. |
A | C1 | C2 | E | D1 | 11 | C3 | ||
| MSTMQ | 010 | 05 | 1 | 499.51 | 159 | 15 | 15 | 14 | _ | _ | _ | _ | _ | _ | _ | _ | _ | _ |
| MSTMQ | 015 | 05 | 1.5 | 499.51 | 106 | 19 | 19 | 17.5 | 62.44 | 124.88 | 4 | 8 | 7 | 11 | 7 | 29.0 | 441.5 | 5.7 |
| MSTMQ | 015 | 10 | 1.5 | 999.03 | 212 | 19 | 19 | 17.5 | 62.44 | 124.88 | 8 | 8 | 7 | 11 | 7 | 29.0 | 941.0 | 5.7 |
| MSTMQ | 020 | 05 | 2 | 502.65 | 80 | 24 | 24 | 22 | 62.83 | 125.66 | 4 | 8 | 7 | 11 | 7 | 31.3 | 440.1 | 5.7 |
| MSTMQ | 020 | 10 | 2 | 1005.31 | 160 | 24 | 24 | 22 | 62.83 | 125.66 | 8 | 8 | 7 | 11 | 7 | 31.3 | 942.7 | 5.7 |
| MSTMQ | 030 | 05 | 3 | 508.94 | 54 | 29 | 29 | 26 | 63.62 | 127.23 | 4 | 9 | 10 | 15 | 9 | 34.4 | 440.1 | 7.7 |
| MSTMQ | 030 | 10 | 3 | 1017.88 | 108 | 29 | 29 | 26 | 63.62 | 127.23 | 8 | 9 | 10 | 15 | 9 | 34.4 | 949.1 | 7.7 |
| MSTMQ | 040 | 05 | 4 | 502.65 | 40 | 39 | 39 | 35 | 62.83 | 125.66 | 4 | 12 | 10 | 15 | 9 | 37.5 | 427.7 | 7.7 |
| MSTMQ | 040 | 10 | 4 | 1005.31 | 80 | 39 | 39 | 35 | 62.83 | 125.66 | 8 | 12 | 10 | 15 | 9 | 37.5 | 930.3 | 7.7 |
| MSTMQ | 050 | 05 | 5 | 502.65 | 32 | 49 | 39 | 34 | 62.83 | 125.66 | 4 | 12 | 14 | 20 | 13 | 30.1 | 442.4 | 11.7 |
| MSTMQ | 050 | 10 | 5 | 1005.31 | 64 | 49 | 39 | 34 | 62.83 | 125.66 | 8 | 12 | 14 | 20 | 13 | 30.1 | 945 | 11.7 |
| MSTMQ | 060 | 05 | 6 | 508.94 | 27 | 59 | 49 | 43 | 63.62 | 127.23 | 4 | 16 | 18 | 26 | 17 | 31.4 | 446.1 | 15.7 |
| MSTMQ | 060 | 10 | 6 | 1017.88 | 54 | 59 | 49 | 43 | 63.62 | 127.23 | 8 | 16 | 18 | 26 | 17 | 31.4 | 955.0 | 15.7 |
| MSTMQ | 080 | 05 | 8 | 502.65 | 20 | 79 | 79 | 71 | 62.83 | 125.66 | 4 | 25 | 22 | 33 | 21 | 26.6 | 449.5 | 19.7 |
| MSTMQ | 080 | 10 | 8 | 1005.31 | 40 | 79 | 79 | 71 | 62.83 | 125.66 | 8 | 25 | 22 | 33 | 21 | 26.6 | 952 | 19.7 |
| MSTMQ | 100 | 10 | 10 | 1005.31 | 32 | 99 | 99 | 89 | 62.83 | 125.66 | 8 | 32 | 33 | 48 | 32 | 125.7 | 753.96 | 19.7 |
Features
- Precision Grade: DIN 8e27 ensures high accuracy in performance.
- Material: Made from SCM440 Chromium Molybdenum Alloy Steel (42CrMo4) for enhanced strength and durability.
- Type: Straight rack design suitable for various applications.
- Treatment of Teeth: Milled for superior finish and precision.
- Hardness: Quenched to achieve a hardness range of HRC21~24, ensuring longevity.
- Pressure Angle: 20 degrees for optimal load distribution.
- Total Pitch Error: Minimal at 0.1mm/1000mm, ensuring precise engagement.

Troubleshooting Common Issues
The Milled Tempered & Quenched Straight Tetragonal Chromium Molybdenum Alloy Steel (SCM4402) Gear Rack is engineered for durability and precision, but like any mechanical component, it may encounter issues during operation. Here are some common problems and their solutions:
1. Wear and Tear
Over time, gear racks can experience wear that can affect performance. This is often due to inadequate lubrication or misalignment. Regular maintenance, including lubrication and alignment checks, can prevent excessive wear.
2. Misalignment
If the gear rack is not properly aligned with the gear, it can lead to noisy operation and uneven wear. To resolve this, ensure that the installation is accurate, and make adjustments as necessary to align the components properly.
3. Corrosion
Corrosion can occur if the gear rack is exposed to moisture or harsh environments. To mitigate this, consider applying protective coatings and conducting regular inspections to identify any signs of corrosion early.
4. Cracking or Fractures
Cracking can result from excessive load or impact. If you notice cracks, it is crucial to stop using the gear rack immediately and replace it to avoid further damage to the system. Analyze the load requirements and ensure they are within the specifications.

Understanding Gears and Gear Racks
When utilizing a milled, tempered, and quenched straight tetragonal chromium molybdenum alloy steel (SCM4402) gear rack, it is essential to consider several key factors to ensure effective gear engagement. The material properties of SCM4402 provide excellent strength and durability, making it suitable for high-stress applications. However, proper alignment and maintenance are critical to achieving optimal performance.
Firstly, ensure that the gear and rack are aligned correctly to prevent excessive wear or damage. Misalignment can lead to uneven load distribution, which compromises the efficiency of the system. Regular checks and adjustments may be necessary to maintain precision in operation.
Secondly, lubrication plays a vital role in minimizing friction between the gear and rack. Using appropriate lubricants will enhance the lifespan of both components and improve overall performance. Over time, the lubrication may degrade, so it is important to regularly inspect and replenish it as needed.
Lastly, understanding the load requirements and operational conditions will help in selecting the right specifications for both the gear and rack. The robust nature of SCM4402 allows it to handle significant loads, but knowing the limits and operational environment is crucial for longevity and reliability.

Why Choose GBC Gear Racks
GBC is the Australian sales agent for Ever-power, offering high-quality transmission products at competitive prices. Our gear racks are currently sold across New South Wales, Victoria, and Queensland, covering major cities such as Sydney, Melbourne, Brisbane, Adelaide, and Perth.
Ever-power has nearly 20 years of accumulated experience in the industry. Our gear racks achieve a precision grade of up to level 5 according to the German DIN3962 standard, with a maximum length of 3200mm for a single piece. We can manufacture straight and helical gear racks in various specifications, ranging from 1 to 22 modules, based on customer requirements.
The Milled Tempered & Quenched Straight Tetragonal Chromium Molybdenum Alloy Steel (SCM4402) Gear Rack offers exceptional durability and strength, making it suitable for various applications.
Our company prides itself on providing excellent customer service, ensuring that all our clients receive the support and assistance they need.

The GBC Milled Tempered & Quenched Straight Tetragonal Chromium Molybdenum Alloy Steel (SCM4402) Gear Rack MSTMQ series stands out for its exceptional durability and strength. Manufactured using advanced techniques, this gear rack offers superior resistance to wear and corrosion, making it ideal for demanding applications. With precise engineering, GBC ensures enhanced performance and reliability, catering to suppliers and manufacturers seeking top-quality components for their projects. Experience the unmatched quality and efficiency that only GBC can provide.






