ABEC 3 radial bearing with 16 mm inner diameter, 30 mm outer diameter, 10 mm thickness and double-lip type sealing with light contact, making a labyrinth seal.
ABEC 3 bearings use grade 10 Chromium Steel Balls and 52100 High Carbon Chromium Alloy Races. 
The high precision balls are within 10/1.000.000″ round, twice as round as the industry standard, at it's highest level. 
The alloy races are made from a vacuum de-gassed process for the purest chromium alloy steel, hardened to R-62, extremely tough and very durable.
Polished to a mirror finish for ABEC-3 precision and noiseless movement. The riveted Steel Retainer stands for toughness, ABEC-3 tolerances and noise tested.
| Product name: | Enduro Bearings MR163010 LLB - ABEC 3 - Ball Bearing - 16x30x10mm | 
| Manufacturer: | Enduro Bearings | 
| Item code: | ENO406571 | 
| Activity: | Cycling | 
| Bearings type: | Radial Bearing, Ball Bearing | 
| Bearings inner ø: | 16 mm | 
| Bearings outer ø: | 30 mm | 
| Bearings width: | 10mm | 
| Bearings seal: | LLB - dual lip rubber light contact seal | 
| Bearings lubrication: | Grease Lubrication | 
| Bearings static load: | 2121.9N | 
| Bearing material: | Stainless Steel | 
| Weight: | 30g | 
| Manufacturer item code: | MR163010 | 
| Manufacturer page: | http://endurobearings.com/ |