Saginaw MDL-UNKN-231992; Lot-4; Trolley Wheels - Austin Surplus Industrial, Inc.
Saginaw 51861 Trolley 2000 Load Capacity 5" to 24-1/64" Beam
Old Saginaw products Corp. overhead beam truck roller chain trolley, No. 7928, has a tag and number on it, roller wheels have company name on it, used, workable condition - Albrecht Auction Service
Amazon.com: Ultimation Heavy Duty 1,000 Pound Capacity I-Beam Trolley with Side Guide Rollers - Ideal for Automotive Assembly Plants - Industrial Grade, High Load-Bearing Fits 3", 4", and 6" Tall Trolley Systems :