Sizes STD, .25, .50 Oil Clearance: Standard Half Type: Identical Halves Material: Tri-metal Hardened steel backs Min Std Shaft Size: 2.0468 in / 51.990 mm Max Std Shaft Size: 2.4072 in / 52.000 mm Min Std Tunnel Size: 2.1654 in / 55.000 mm Max Std Tunnel Size: 2.1661 in / 55.020 mm Max Wall at Crown: 0.0589 in / 1.496 mm Max Overall Length: 0.792 in / 20.12 mm Notes:
