MR137-2RS ZrO2/Si3n4 Bearing, the inner diameter is 7mm, outer diameter is 13mm and the width is 4mm, this is a popular size that could be used in many applications, Bearing is made of Ceramic.The ball bearing grease is recognized as "standard" throughout the world. Exceptionally good low noise profile and long life grease usable over wide temperature ranges.

• Item: MR137-2RS ZrO2/Si3n4 SRL Ball Bearing
• Type: Full Ceramic Ball Bearing
• Balls: Si3n4 (Silicon Nitride) Ceramic
• Inner/outer races: ZrO2 (Zirconium Oxide) Ceramic
• Wide Temperature Range: -50~150
• Dimensions: 7mm x 13mm x 4mm/Metric
• Lubrication: SRL high quality grease
• ID (inner diameter)/Bore: 7mm
• OD (outer diameter): 13mm
• Width/Height/thickness: 4mm
• Size: 7mm x 13mm x 4mm/Metric
• Quantity: One Bearing
• Wide Temperature Range: -50~150 C (-58~302 F)