AXK 10PCS R8-2RS Deep Groove Ball Bearings, 1/2" x 1-1/8" x 5/16" Double Rubber Sealed for Electric Motor, Wheels, Home Appliances($8.00Value)

Description

These R8 series deep groove ball bearings follow industry standard inch dimensions: 1/2" inner bore, 1-1/8" outer diameter, 5/16" width, perfectly fit all equipment with matching imperial shafts for quick drop-in replacement. You can choose R8ZZ double metal shield for dry & dusty conditions or R8‑2RS double rubber seal for damp/splash‑prone places, easily selecting the right bearing based on your actual usage environment. Made of high‑quality chrome bearing steel with ABEC 1 precision grade, ensuring smooth rotation, low noise and good wear resistance for daily DIY repair and light‑medium load applications. Each bearing is pre‑filled with premium industrial grease at the factory. No extra oiling is needed after installation, saving your maintenance time and extending service life. Great replacement bearings for electric motors, cart wheels, home appliances, lawn mowers, routers and other garden & household machinery, ideal for personal repair and small workshop stock. Series Model: R8 Deep Groove Ball Bearing
Inch Size: ID 1/2", OD 1-1/8", Width 5/16"
Exact Metric Size: 12.7mm × 28.575mm × 7.938mm
Precision Rating: ABEC 1
Available Seal Versions:
  R8ZZ: Double metal shield (dustproof for dry use)
  R8‑2RS: Double rubber seal (dustproof & splash‑proof for damp use)
Material: Wear‑resistant chrome bearing steel
Lubrication: Pre‑greased from factory
Package Quantity: 10 pieces per unit

Seal Type Comparison & Usage Guidance
R8ZZ (Metal Shield): Low friction, suitable for relatively high continuous speed, only blocks dust/debris, NOT waterproof; recommended for woodworking routers and dry workshop environments.
R8‑2RS (Rubber Seal): Better moisture & splash protection, retains grease better; slight friction from rubber contact seal, better for normal‑speed outdoor/garden equipment, home appliances and wheels.
Load Recommendation: Suitable for radial load plus minor axial load, light to medium duty operation.
Warm Note: Do not use either variant for continuous ultra‑high speed heavy industrial operation to avoid premature wear.
Common Compatible Equipment
Small electric motors, hand trolley wheels, household appliances, lawn mowers, garden machinery, woodworking routers and other mechanical replacement parts.