420 Stainless Steel + Si3N4 Ceramic Ball Bearing For Toy Cars、Fishing Wheel
Description:
-Inner and outer ring material: 420 stainless steel。
-Ball material: silicon nitride ceramic ball。
-Sealing cover: adopts non-contact sealing to prevent friction。
-Ball material: silicon nitride ceramic ball。
-Sealing cover: adopts non-contact sealing to prevent friction。
-Product features: low resistance, long idle time, high accuracy, and small clearance. Smooth throwing distance, never rusting. And the price is relatively affordable。
-Stainless steel+ceramic balls, ceramic balls have the characteristic of not requiring lubrication, effectively reducing the trouble of adding lubricating oil。
-High quality bearings， are made of stainless steel material on the surface, which can be used normally even under the corrosion of seawater without rusting. Sealed covers are added on both sides to better prevent the entry of dust, stones, and impurities from causing the bearings to jam, greatly increasing the service life of the bearings。
1. High temperature resistance, small coefficient of thermal expansion of ceramic balls. In high-temperature environments, bearing balls will not expand due to temperature reasons. The temperature of ordinary bearings is around 160 degrees, while ceramic balls can reach over 220 degrees。
2. High rotational speed, ceramic balls have oil-free self-lubricating properties, and ceramic ball friction coefficient is small. Therefore, ceramic ball bearings have high rotational speed and do not lag, and can idle for more than 20-30 seconds。
3. Long lifespan, ceramic balls have the characteristic of not requiring lubrication, effectively reducing the trouble of adding lubricating oil and preventing impurities that may seep into the bearings during lubrication, leading to rust and damage, greatly increasing the lifespan of the bearings。
2. High rotational speed, ceramic balls have oil-free self-lubricating properties, and ceramic ball friction coefficient is small. Therefore, ceramic ball bearings have high rotational speed and do not lag, and can idle for more than 20-30 seconds。
3. Long lifespan, ceramic balls have the characteristic of not requiring lubrication, effectively reducing the trouble of adding lubricating oil and preventing impurities that may seep into the bearings during lubrication, leading to rust and damage, greatly increasing the lifespan of the bearings。
-Suitable for various fields such as water droplet wheels, spinning wheels, RC remote-controlled cars, toy cars, etc。
Package Include: According to your choose
Payment:
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Payment must be completed within 7 days.
PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES.
Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment.
Shipping:
We Ship to Worldwide.
Orders processed within 24-48 hours of payment verification. it will take 15-25 days for delivery. but Customs will random inspection some parcel, so that's why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed.
We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address.
Package to USA will Shipping by E-Package with Tracking Number(7-15 Days to Delivered). To other Countries will shipping by Post Air Mail without tracking number(ONLY when the order is over 20USD will supply Tracking Number Shipping Way!)(15-35 Days to Delivered)
Items are shipped via China Post Air Mail.
Guarantee:
Good Good quality. Buy with confidence!
If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it.
Not accept returning of electronic components.
Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer.
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