Choosing a cross roller bearing cage requires comprehensive consideration of material, working environment, and bearing performance requirements. Here are the key points:

1、 Material selection

1. Nylon cage

Advantages: Light weight, low noise, good self-lubricating performance, suitable for electrical products with high noise requirements, and can extend the life of bearings

※ Temperature range: -40 ℃ to 120 ℃

※ Attention: During heating installation, it is necessary to control the temperature evenly to avoid deformation

2. Metal cage (steel/brass)

Steel: High strength, corrosion-resistant, suitable for heavy-duty or mineral oil lubrication environments, temperature range -200 ℃ to 300 ℃

※ Brass: Low density, high maximum speed, but needs to avoid ammonia cooling environment (which can easily cause cracking), with a temperature limit of 300 ℃

3. Special materials

Polytetrafluoroethylene (PTFE): extremely low friction coefficient (0.04), low temperature resistance (-260 ℃), suitable for vacuum or non lubricated environments

Phenolic resin/carbon fiber: high temperature resistance (up to 150 ℃), high mechanical strength, suitable for high-speed or high-temperature scenarios

2、 Selection criteria

※ Working environment: Phenolic resin or polyimide is preferred for high temperature environments; Choose stainless steel or non-metallic composite materials for corrosive environments

※ Load and speed: Steel or brass retainers are recommended for low-speed heavy loads; High speed light load optional nylon or PTFE

※ Installation method: If heating installation is required, ensure the temperature resistance of the material (such as nylon to avoid exceeding 120 ℃)

3、 Precautions

※ Avoid transmitting pressure through rolling elements and retainers to prevent damage

※During transportation, it is necessary to fix the bearings to avoid collisions that may affect the cage structure

By matching material characteristics with operational requirements, bearing performance and lifespan can be optimized.