Oil Seal for Journal Assembly of Coal Mill ( HP 1103 ), Dimensions- OD- 508mm, ID- 458. 5mm, H- 25mm, O- Ring for Journal Roller Assembly of Coal mill HP 1103 ( OD- 650mm, Thickness- 10mm, Material- Viton, O- Ring for Journal Roller Assembly of Coal mill HP 1103 ( OD- 650mm, Thickness- 08 mm, Material- Vito