| GB/T 10095-2001 | 4 | 5 | 6 | 7 | 8 | 9 |
| ISO 1328-1997 | 4 | 5 | 6 | 7 | 8 | 9 |
| DIN 3962 | 4 | 5 | 6 | 7 | 8 | 9 |
| JIS B 1702-1,2:1998 | N4 | N5 | N6 | N7 | N8 | N9 |
| JIS B 1702-1976 | 0 | 1 | 2 | 3 | 4 | 5 |
| AGMA 390.03(1973) | ||||||
| Pitch deviation | 13 | 12 | 10 | 9 | 8 | 7 |
| Tooth profile deviation | 14 | 12 | 11 | 10 | 9 | 8 |
| Run out Tolerance | 13 | 12 | 11 | 10 | 9 | 8 |
| Tooth Tolerance | 11 | 10 | 10 | 9 | 8 | 7 |
Thank you for your reading.
Read more:
DIN 3962 Part 1 Tolerances for Cylindrical Gear Teeth
DIN 3962 Part 2 Tolerances for Cylindrical Gear Teeth
DIN 3962 Part 3 Tolerances for Cylindrical Gear Teeth
ISO 1328-2-1997 Cylindrical Gears – ISO System of Accuracy
Read More:
6 Responses
i need to know by change class in din standard gear what element will change ?
When changing the class in DIN standard gears, several elements may be affected, including:
Pitch Deviations: Different gear classes may have varying tolerance levels for pitch deviations, which refer to variations in the distance between gear teeth. Changing the class could result in adjustments to the permissible range of pitch deviations, impacting gear meshing and overall performance.
Profile Deviation: Profile deviations relate to variations in the shape and contour of gear teeth. Higher gear classes typically require tighter tolerances for profile deviations to ensure smoother gear engagement and minimize noise and vibration. Adjusting the class may necessitate stricter requirements or allowances for profile deviations.
Helix Deviations: Helix deviations refer to deviations from the ideal helical shape of gear teeth. Gear classes may specify different limits for helix deviations based on factors such as gear type and application requirements. Altering the class might lead to changes in the permissible range of helix deviations, affecting gear meshing and transmission accuracy.
Tangential Composite Deviations: Tangential composite deviations encompass deviations in various parameters, including pitch, profile, and helix, along the tooth length. These deviations can impact gear performance and transmission efficiency. Changing the gear class could result in adjustments to the allowable tangential composite deviations to meet the new standards.
It’s crucial to consider how changes in gear class may influence these elements and their implications for gear functionality, reliability, and performance.
hi
I would like to leran more about it
Certainly! I’d be happy to provide you with more information. Could you please specify which aspect or elements of the gear standards you’re particularly interested in learning more about? That way, I can tailor the information to your needs. Feel free to let me know, and I’ll be glad to assist you further!
Hi,
I have 2 mating helical gears of OD=370mm, PD=355mm what should be standard manufacturing backlash for this configuration
Thanx
Hello Hassan,
For your mating helical gears with an outer diameter (OD) of 370 mm and a pitch diameter (PD) of 355 mm, the standard manufacturing backlash typically depends on several factors, including the module, gear quality, and application.
However, a general guideline for backlash in helical gears based on the pitch diameter can be calculated using the following approximate values:
Backlash (in millimeters) = 0.05% to 0.2% of the pitch diameter (PD).
For your gears:
Thus, a standard manufacturing backlash would typically fall within this range (0.18 mm to 0.71 mm). However, the exact backlash should be based on your application’s precision and functional requirements. For high-precision applications, you may aim for the lower end of this range, while for less critical applications, the higher end might be acceptable.
The above answer is for reference only, thank you.