Prices 2018 - 15968 Hub, Drums, hubs and wheel attaching parts, The mass of a 16.5" x 7" brake drum is concentrated about 9 inches radially from the hub bearing centerline. unless the brake drum is balanced, it helps excite vibration in trucks and trailers.. Ebill support hub - support - sasktel, Account and billing support hub ; best browsers for sasktel and mysasktel . troubleshooting ebill. rate this answer. rate answer 1 of 5 rate answer 2 of 5 rate answer 3 of 5 rate answer 4 of 5 rate answer 5 of 5 . answers others found helpful. viewing your ebill(s) signing up for ebill. Hub piloted - steel hub on lkq heavy truck, Trailer hub hub pilot cast abs 16040 6 bolt cap 4" long wheel stud same bearing combo with races only meritor #15968 trailer hub hub pilot cast abs 16040 6 bolt cap 4" long wheel stud same bearing combo with races only me..