6902 2RS Ceramic Bearings ZrO2 Ball Bearing

Deep groove ball bearings are the most common type of rolling bearings.
  The basic type of deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls, and a set of retaining structures. There are two types of deep groove ball bearings: single row and double row. The deep groove ball structure is also divided into sealed and open types. Open type refers to bearings without a sealed structure, while sealed deep groove balls are divided into dust-proof and oil proof seals. The dustproof sealing cover material is stamped steel plate, which only plays a simple role in preventing dust from entering the bearing raceway. The oil proof type is a contact type oil seal, which can effectively prevent the lubricating grease inside the bearing from overflowing.

Ceramic bearings have characteristics such as high temperature resistance, cold resistance, wear resistance, corrosion resistance,resistance to magnetic and electrical insulation,oil-free self-lubricating,and high speed.It can be used in extremely harsh environments and special working conditions, and can be widely applied in aviation, aerospace, navigation, petroleum, chemical, automotive, electronic equipment, metallurgy, power, textile, etc.
  The rings and rolling elements of ceramic bearings are made of all ceramic materials, including zirconia (ZrO2), silicon nitride (Si3N4), and silicon carbide (Sic). The retainer is made of polytetrafluoroethylene, nylon 66, polyetherimide, zirconia, silicon nitride, and stainless steel.

advantage
Firstly, it is suitable for working under harsh conditions filled with corrosive media.
Secondly, the density is lower than steel and the weight is lighter, so the centrifugal effect on the outer ring during rotation can be reduced by 40%, thereby greatly extending the service life.
Thirdly, ceramics are less affected by thermal expansion and contraction than steel, allowing bearings to operate in environments with significant temperature differences.
Fourthly, due to the higher elastic modulus of ceramics compared to steel, they are less prone to deformation under stress, which is beneficial for improving working speed and achieving higher accuracy.

1,Q: Are you trading company or manufacturer ?
A: We are factory.
2,Q: How long is your delivery time for 6902 2rs ceramic bearings?
A: Generally it is 3-5 days if the goods are in stock.or it is 15-20 days if the goods are not in stock, it is according to quantity.
3,Q: Do you provide samples for 6902 2rs ceramic bearings? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
4,Q: What is your terms of payment for 6902 2rs ceramic bearings?
A: Payment<=1000USD,100% in advance.Payment>=1000USD, 30% T/T in advance,pay the balance before shippment.
5, Q:Could you accept OEM and customize for 6902 2rs ceramic bearings?
A:YES,we can customize for you according to sample or drawing.
6, Q: When can I get the price for 6902 2rs ceramic bearings?
A: after we get your inquiry, usually within 2-6 hours.Urgent will be faster.
7,Q:How about your quality of bearings?
A:Our quality of bearings is based on ISO9001 and quality of bearing is our soul.
8, Q: What is the MOQ of 6902 2rs ceramic bearings?
A: Usually ≥1,According your demand.
9,Q: Will you check these products before shipment?
A: Yes, before shipment products will be strictly inspection on our factory QC Process System.We have a professional QC team.
10, Q: What will we do if If you are not satisfied with the product?
A: If have any question,Please contact us at first time, we will immediately processing.

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Contact: April
Email: nsk@llhbearing.com
Skype/Wechat:April15315593063
MP/Whatsapp: +8615315593063