Polyamide cages deliver stiffness, flexibility and oil resistance in ball bearings - BEARING NEWS
Amazon.com : PZRT 2pcs Stainless Steel Bicycle Ball Bearings Bike Ball Crank Bearing 1/4 inch x 9 Balls Bike Axle Wheel Ball Frame Bearing Headset Caged Retainer Replacement : Sports & Outdoors
SKF polymer products and components - Evolution
Bicycle Rear Wheel 1/4inch X 9 Ball Bearing Cages Pair Mountain Bike Accessory,rear Wheel Balls Bearing For Bicycle,inside Dia 19mm, Outside Dia 28mms | Fruugo NO
4pcs 44mm x 9 Ball Bearing Cages Crank Bearings Wheel Bearing Retainer for Bicycle Silver Tone - Walmart.com
Linear Bearing Cages | KMF Bearings
12pcs 25mm x 7 Ball Bearing Cages Crank Bike Bearings Rear Wheel Bearing Retainer - Walmart.com
Bearing Cages and Preload - Empowering Pumps and Equipment