{"product_id":"trojan-taper-leaf-slipper-spring-500kg-pair-heavy-duty-marine-trailer-suspension","title":"Trojan Taper Leaf Slipper Spring 500kg Pair Heavy Duty Marine Trailer Suspension","description":"\u003cdiv\u003eTrojan Taper Leaf Slipper Series Springs deliver dependable, heavy‑duty support in demanding environments with a design that stays strong under load. The 500kg per pair configuration (TPBS500) is engineered for reliability where it matters most, from rugged marine applications to heavy utility trailers. Key features and benefits\n- High-capacity, single‑leaf taper design: The 500kg per pair rating is built around a robust 13.2 mm leaf thickness, providing lasting strength and predictable spring rate under load. This isn’t generic suspension—it's precision‑engineered for stable, controlled suspension performance.\n- Wide taper leaf profile, Long Series construction: The tapered leaf geometry distributes stress more evenly along the length of the spring, reducing peak loads and extending service life in demanding operating conditions.\n- Marine-grade painted finish: The Trojan PBS range uses corrosion‑resistant paint to withstand exposure to moisture, salt spray, and harsh weather—keeping the assembly looking good and functioning reliably longer.\n- Bottom locating pin with underneath axle mounting: The locating pin sits on the bottom, while the axle is mounted beneath with the pin engaging the axle location holes. This layout provides solid alignment and reduces lateral movement, helping maintain consistent handling and load transmission.\n- Precise eye and bolt geometry: Eye diameter is 16 mm, calibrated to fit standard mounting hardware, while overall spring length and eye alignment are designed for straightforward installation in compatible suspension systems.\n- Practical, field‑ready design: Sold as a pair and shipped from local Trojan suppliers, TPBS500 is ready to install with minimal modification, making it a practical choice for builders and mechanics working on trailers and marine platforms. Technical snapshot (as described)\n- Brand and range: Trojan, PBS range, code TPBS500\n- Capacity: 500 kg per pair\n- Leaf configuration: 1 leaf, taper profile\n- Leaf thickness: 13.2 mm (from locator pin region)\n- Eye diameter: 16 mm\n- Overall length: 750 mm (Long Series, wide taper leaf)\n- Finish: Marine‑grade painted\n- Mounting: Bottom locating pin; axle mounted underneath with pin into axle holes\n- Shipping: Items supplied from local Trojan supplier network Who benefits most\n- Boat trailer builders and operators needing reliable, corrosion‑resistant suspension that handles the rigors of marine use.\n- Heavy‑duty trailer or equipment installers seeking a robust, long‑life slipper spring with precise mounting geometry.\n- Technicians and DIYers looking for a proven, high‑capacity spring set that delivers predictable performance under load. Why this matters in practice\n- Predictable ride height and load distribution reduce sway and improve stability on the water or on uneven terrain.\n- The bottom locating pin and underside axle mounting create a rigid, repeatable alignment, which translates to easier installation, repeatable maintenance, and fewer post‑install adjustments.\n- The 13.2 mm leaf thickness paired with the taper design provides a durable balance between stiffness and travel, supporting heavier loads without sacrificing ride quality. Tips for optimal use\n- Verify your mounting hardware matches the 16 mm eye diameter and the overall length of 750 mm to ensure a clean fit.\n- For longevity in harsh environments, keep the painted finish intact and inspect the locating pin and axle holes for wear during routine maintenance.\n- When planning replacements, compare leaf thickness and overall length to ensure consistent spring rate and harness the 500 kg per pair capacity effectively. This description reflects Trojan’s craftsmanship in the PBS series—the TPBS500 Taper Leaf Slipper Spring is built to deliver durable performance, precise mounting, and long service life in demanding, real‑world applications.\u003c\/div\u003e","brand":"Trojan","offers":[{"title":"Default Title","offer_id":48371920142621,"sku":"TPBS500","price":225.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0864\/1072\/3613\/files\/8DFC6E24-0B27-43AD-8EBC-9D85E0095B1F.jpg?v=1772755032","url":"https:\/\/actionoutdoors.kiwi\/products\/trojan-taper-leaf-slipper-spring-500kg-pair-heavy-duty-marine-trailer-suspension","provider":"Action Outdoors Limited","version":"1.0","type":"link"}