SR8ZZ High Temperature Bearing - 500°F Rated - 1/2" x 1-1/8" x 5/16"SR8ZZ Stainless High Temp Ball Bearing 1 2" ID Shielded, C4 Clearance, Heat Rated to 500F The SR8ZZ is a high temperature deep groove bearing built with stainless steel and pre packed with Klubertemp HCB83 402 grease. Its got dual metal shields and C4 clearance, making it a go to for hot running gear like ovens, dryers, or high speed tools that run hot and steady. Size: 1 2" ID x 1 1 8" OD x 5 16" Width Made from heat resistant stainless steel