• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Type: Ceramic Ball, Ceramic Ball
  • Brand Name: all brands
  • Bore Size: 17 mm
  • Outside Diameter: 30 mm
  • Model Number: 6903-2RS
  • Place of Origin: Shandong, China (Mainland)
  • Balls: ceramic Si3N4 ZrO2
  • Precision rating: P0,P4,P5,P6
  • Seals Type: Open Type, Z, ZZ, RS, 2RS
  • Material: ZrO2,Si3N4,rubber, plastic
  • Clearance: C2,C0,C3,C4,C5
  • Noise Level: Z1,Z2,Z3,Z4
  • Cage material: PTFE, PEEK, NYLON

Packaging & Delivery

Packaging Details 1. Industrial Exporting Package 2. Individual White Paper Box Packing 3. According to customers' requirement
Delivery Time 15-20 days after making order

ceramic ball bearing


ZrO2 full ceramic ball bearings 6903-2RS 17X30X7 


ceramic ball bearing

1.High temperature-resistant
2.High accuracy ,High speed
3.Low friction, low noise



One bearing Stainless Steel Ceramic Balls ABEC-5 quality, this is a popular size that could be used in many application that uses this size 17x 30x 7  Bearings can rotate up to 100,000 rpm, each bearing has 2 Rubber Seals to protect the bearing from dust or any possible contamination, also bearings are pre-lubricated with grease, Bearings are packed 10 bearings in one plastic tube.



  • Item Type: Double Shielded Ball Bearings ABEC-5
  • Item Name: S6903-2RS = 61903-2RS1
  • Size: 17mm x 30mm x 7mm
  • Type: Deep groove ball bearings
  • Material: Stainless Steel
  • Balls: ZrO2 Ceramic (Zirconium Oxide)
  • Closures: Rubber Sealed
  • Marking: S6903RS = 61903RS
  • Lubrication: Self Lubricated (Grease)
  • Quantity: One Bearing


Followings are the ceramic bearings displayed we are hot selling in the international market.







Above just are the some types of our products of ceramic, we also provide you with ones you would like to buy. Pls contact us without hesitation.

Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
Trade Assurance
China (Mainland) | Trading Company
Transaction Level:
Supplier Assessments:
8 Transactions 20,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $24,000
Learn More