PREMIUM HYBRID 627 RS CERAMIC Si3N4 BEARINGS ROLLER SKATE 7x22x7. Then there is the Silicon nitride referred to as Si3N4 (it's formula). In essence the higher the number the smoother the bearing allowing for better speed and longer free roll.
eBay
GREAT FOR PRESSING BEARINGS INTO YOUR QUAD, SKATEBOARD, LONGBOARD OR ROLLER SKATE WHEELS AND FOR REMOVING THEM. CHANGE YOUR BEARINGS WITH EASE WITH THIS SUPERB BEARING PRESS. TAILORED TO FIT BOTH 7MM AND 8MM BEARINGS, ENSURING COMPATIBILITY WITH A WIDE RANGE OF WHEELS.
eBay
LONGBOARD, SKATEBOARD, IN LINE, ROLLER SKATE, SCOOTERS. SINGLE SNAP FIT "RS PRO RIDERS" SEAL FOR EASY CLEANING. HIGH PERFORMANCE BEARINGS. SYNTHETIC SPEED LUBE.
eBay
Here we have for sale Precision Abec 7 608 Roller Skate Quad Inline Skate Board Bearings.
eBay
SUITABLE FOR SKATEBOARDS, STUNT PUSH KICK SCOOTERS, QUAD ROLLER SKATES, INLINE SKATES, ROLLER DERBY ETC. BEST QUALITY ALLOY WHEEL BEARING SPACERS. PRICE ALSO INCLUDES FREE " RS PRO RIDERS " STICKER .
eBay
Wheels: Ventro Pro clear urethane wheels, suitable for indoor and outdoor use. Experience the fusion of hockey-grade performance and quad skating versatility with theBauer XLS Custom Quad Roller Skates.
eBay
These wheels are used for the modification of outdoor sports enthusiasts' roller skates or the maintenance and replacement of accessories.SpecificationColor: BlueMaterial: PUHardness: 82ASize: 32 x 58mm / 1.26 x 2.28 inch(H*OD)Packing List: 4 x Skate Wheels, 4 x 608RS BearingsAdvantage1. Made of polyurethane, outdoor wheels have the characteristics of non-slip, good compression resistance, and shock absorption, making sliding more comfortable. They has good wear resistance and a long service life.2. The wheel has a wide contact surface with the ground and has a strong ability to pass obstacles. Skate accessories can smoothly pass through various roads, such as gravel roads, brick roads, and speed bumps.3. Roller skate tool has a good rebound, making it faster and more stable in grip.
eBay
These wheels are used for the modification of outdoor sports enthusiasts' roller skates or the maintenance and replacement of accessories.SpecificationColor: RedMaterial: PUHardness: 82ASize: 32 x 58mm / 1.26 x 2.28 inch(H*OD)Packing List: 2 x Skate Wheels, 2 x 608RS BearingsAdvantage1. Made of polyurethane, outdoor wheels have the characteristics of non-slip, good compression resistance, and shock absorption, making sliding more comfortable. They has good wear resistance and a long service life.2. The wheel has a wide contact surface with the ground and has a strong ability to pass obstacles. Skate accessories can smoothly pass through various roads, such as gravel roads, brick roads, and speed bumps.3. Roller skate tool has a good rebound, making it faster and more stable in grip.
eBay