nordberg c125 crusher parts return rod

• Does Your Jaw Crusher Need a Return Rod?

  May 22, 2026

  One single alloy steel rod keeps your toggle plate in place. When it breaks, your whole crusher stops. When discussing jaw crusher parts, most attention goes to jaw plates, cheek plates, and jaw crusher toggle plate. However, a small but vital component, the return rod or tension rod, is crucial for keeping the entire crushing mechanism intact. What Does the Return Rod DoThe return rod maintains constant contact between the pitman and the movable toggle plate, reducing impact wear. Each jaw crusher uses one rod, forged from high-strength alloy steel and heat-treated for strength and toughness. It works with a compression spring that pushes the toggle plate back after each stroke. Without proper tension, the toggle plate can slip, causing sudden crusher stoppage while the flywheel spins – a clear sign that the tension mechanism needs inspection. Return Rod Location in Jaw CrusherEg: C80  ONA-951199 Pos. Part No. Description Qty Net wght 10 ONA-951193 SPRING SUPPORT 1 18 11 ONA-951199 RETURN ROD 1 8.5 12 ONA-932064 SPRING GUIDE 1 3.5 13 ONA-902744 PROTECTION PLATE 1 8.3 14 ONA-704006490000 PIN, SPLIT 2 0.02 23 ONA-N01563030 NUT, HEXAGONAL 2 0.22 25 ONA-704207150000 WASHER 1 0.06 26 ONA-704205555000 CLEVIS PIN 1 2 31 ONA-7001530310 SCREW, HEXAGONAL 2 0.1 32 ONA-7001633016 WASHER, LOCK 2 0.007 33 ONA-7073215001 SPRING 1 15.5 34 ONA-7001530319 BOLT, HEXAGONAL 6 0.1 35 ONA-7001633016 WASHER, LOCK 6 0.007 36 ONA-N01616428 PIN, SPRING, SLOTTED, HEAVY DUTY 2 0.09 37 ONA-N01623116 WASHER, PLAIN 2 0.084 Most Common Failure ModesThe return rod operates under repetitive tension cycles, making it a sacrificial component designed to withstand thousands of load cycles before eventually fatiguing. The most frequent failure is a bent or fractured rod. When the rod breaks, the tension spring loses its preload, allowing the toggle plate to shift or fall completely out of its seat. A worn or weakened spring can also cause rod failure, as increased dynamic loads elevate the risk of fracture. Both scenarios result in unplanned shutdown and immediate replacement. ONA Return Rods Engineered for ReliabilityONA manufactures replacement return rods from high-strength forged alloy steel, precision threaded to match original specifications. Each rod is 100 percent dimensionally inspected and coated with anti-rust oil. For operators who prefer a full tension mechanism set, ONA offers return rods together with matching tension springs, spring seats, and adjusting nuts as complete kits.ONA return rods are suitable for a wide range of suit to Metso crusher parts and suit to jaw crusher parts, including suit to Nordberg C Series, suit to Metso, and other OEM and aftermarket equipment. Whether you need a standard replacement or a custom rod from your drawing, contact ONA with your model or part number for a quote. ONA Return Rod Part No. Model Part No. Model ONA-921064 C100 ONA-MM1034156 C150 ONA-949630797300 C100 ONA-921070 C160 ONA-941771 C105 ONA-917491 C200 ONA-941503 C110 ONA-919668 C3055 ONA-MM0209833 C116 ONA-951199 C80 ONA-MM0531457 C120 ONA-902742 C80 ONA-921067 C125 ONA-939984 C95 ONA-921069 C140 ONA-949638614500 C125 ONA-949640496100 C140 ONA-MM1520340 C120 ONA-921068 C140 ONA-MM1519871 C106 Keep your suit to jaw crusher toggle plate seated and your production moving. Choose ONA for return rods you can trust.All names, marks, models, symbols and descriptions are used for reference purposes only and it is not impied that any of the parts/brands listed are the product of any company other than ONA. We are not agents or distributors for any of the above mentioned brands nor do we have any commercial relationship or association with them.

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