Product Name: Sprockets for Power Transmission From China Model NO.: 06B, 08B, 10B, 12B etc. Type: Circular Gear Material: Stainless Steel Toothed Portion Shape: Curved Gear Manufacturing Method: Cast Gear Hardness: Hardened Application: Industry Delivery: 5~30 Days After The Payment Manipulate Way: Semi-Automatic Manipulation Changes Way: Stepped Trademark: SYPT Transport Package: Wooden Case Specification: SGS Origin: Shanghai HS Code: 8483900000 Product Description 1.Made of steel or cast iron2.All sizes of 06B, 08B, 10B, 12B etc.3.Of high quality and advanced process.4.Very well checked and in stock.Here are the bushings: