Home Products agricultural chain weld on sprockets sprockets x series 67H, 67XH, 667H chain 67H, 67XH, 667H chain Use with X series hubs only. 3 Available Products SALE 6706X - Weld-On Sprocket 6 tooth; for 67H, 67W, 67XH, 667H chain. ... SALE 6707X - Weld-On Sprocket 7 tooth; for 67H, 67W, 67XH, 667H chain. ... SALE 6708X - Weld-On Sprocket 8 tooth; for 67H, 67W, 67XH, 667H chain. ... 3 Available Products