锁紧螺母和尼龙嵌件自锁螺母完整指南。了解工作原理、使用场景及非洲项目机械、车辆、振动设备的正确选型。
Why Standard Nuts Loosen Under Vibration
Content coming soon.
Nylon Insert Lock Nuts (Nyloc)
Content coming soon.
| Temperature Range | Prevailing Torque | Reusability | Best Use |
|---|---|---|---|
| -40°C to +120°C | Medium | Good (5-10 cycles) | General machinery |
| -40°C to +200°C (HD nylon) | Medium | Moderate | Higher temperature |
| -40°C to +250°C (metal insert) | High | Excellent | Engines, turbines |
| All temperatures (all-metal) | Very high | Excellent | Critical safety applications |
All-Metal Lock Nuts: Keke and Top Lock Types
Content coming soon.
| Type | Temperature Rating | Reusability | Application |
|---|---|---|---|
| Nylon Insert (Nyloc) | Up to +120°C | Good | General machinery |
| All-Metal Keke | Up to +300°C | Limited | Engines, turbines |
| Top Lock (stamped) | Up to +200°C | Moderate | Automotive, appliances |
| Polymer Flange Lock | Up to +150°C | Good | Mass production assembly |
| Detachable (floating) | Up to +250°C | Excellent | Maintenance-heavy applications |
Selection Guide for African Applications
Content coming soon.
Installation Best Practices
Content coming soon.
Frequently Asked Questions
See frequently asked questions below.
Can I reuse a Nyloc nut?
Yes, Nyloc nuts can typically be reused 5-10 times before significant degradation of the nylon insert. For critical applications (safety, heavy vibration), replace with a new Nyloc nut each service interval. If the nylon insert appears cracked, deformed, or glazed, replace immediately.
What's better — Nyloc or spring lock washer?
For vibration applications, lock nuts outperform spring washers significantly. Spring washers (split lock washers) rely on spring tension and can lose effectiveness under sustained vibration. Nyloc nuts provide consistent prevailing torque throughout the joint's life. For critical joints, use both: Nyloc nut + flat washer.
What does 'prevailing torque' mean?
Prevailing torque is the torque required to rotate the nut onto the bolt before the main tightening torque is applied. It is measured as the torque needed to overcome the locking mechanism's resistance. A quality Nyloc nut typically has prevailing torque of 0.5-2.0 N·m depending on size. This value must be verified in the product datasheet for engineering applications.
需要自锁螺母用于您的设备？从TradeGo获取工厂报价。
获取报价