ENDURO ABEC-5 Cartridge Bearing – MR 15307 – 15 x 30 x 7

Bearings meeting the ABEC-5 standard. High precision Grade 10 balls are within 5/1,000,000″ round.

• High-carbon chromium alloy races
• Grade 10 balls
• Protective gray LLU seal facing outward, towards the elements, to reduce contamination from water or dirt
• Lighter-contact (less seal-drag) black LLB seals facing inward keep the 90% fill Mobil XHP 222 high pressure grease where it belongs