ULTRA-DURABLE - The chrome steel alloy (AISI 52100) body has high resistance to wear and tear, meaning it does not deteriorate under high pressure and meets all industry standards. HQRP trademarked products. SOLID IRON CAST HOUSINGS - Each bearing features a solid cast iron housing, which provides a sturdy base to bearing, allowing it to stay in position. Bolt Size M10;. Good product Product description HQRP 2-Pack UCFL205-16 2-Bolt Flange Mounted Pillow Block Bearing 1-inch Bore, Solid Base, Self-Alignment Legal Disclaimer This is not an Original Equipment Manufacturer (OEM) product, HQRP branded product is a replacement. UCF204-12 Square Flange Bearing 3/4 Bore Heavy Duty MAPLE ACE UCF204-12 Square Flange Ball Bearing Unit, 3/4 Bore, 4-Bolt Self-Aligning (Pack Of 2) 4 Bolt Self Aligning Bearing Pillow Block Bearing 1 Inch Bore UCFL205-16 Self-align 2 Bolt Flange Pillow Block Bearing 1 Inch 6PCS Industrial Replacement Bearing HQRP® 2-Pack UCFL205-16 Pillow Block Bearing 1-inch Bore; Bolt Size M10; Inside Diameter: 25., 4mm - 1-Inch; Snapklik.co : NOOTO UCFL205-16 Pillow Block Bearing Any use of the brand names or model designations for this product are made solely for purposes of demonstrating compatibility. All brand names and logos are registered trademarks of their respective owners.