外球笼的功能配件包括：防尘罩，卡箍，润滑脂，螺帽。
防尘罩由用橡胶（合成的或者是天然的）或者是硬塑料（通常是同等材料）制成的具有保护作用的盖子。防尘罩的作用是保护里面的油脂不被灰尘和水污染。拆分、开裂或其他情况损坏的防尘罩应及时更换。
我公司的所有批次防尘罩都经过专业的机器检测，确保其耐低温必须达到零下40°，且根据实验要求的进行多次拉伸实验确保不会出现开裂现象。
良好的修理包配件，能为等速万向节球笼延长使用寿命起到辅助的作用。
Boot kit introduction
Outer joint functional Accessories includes, boot, clamps, grease, nut.
Boot is made of protective rubber (synthetic or natural) or hard plastic (usually Hytrel) covers that surround CV joints. The boot's job is to keep grease in and dirt and water out. Split, torn or otherwise damaged boots should be replaced immediately. The quality of rubber boots used in our products are strictly examined by professional testing machines, They can keep elastic under -40 degrees centigrade, and with no sign of cracking after multiple times of pulling experiments. A boot kit with sound quality can serve a significant role in lengthening the life time of a CV Joint.
