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oem Forging 50Mn Steel Bottom Track Rollers For E70 Cat Undercarriage

Double floating seals (high-chromium alloy, HRC 65–70) to prevent oil leakage and block contaminants (mud, dust, water). Nitrile rubber O-rings with temperature resistance (-40°C to 120°C) for reliable sealing in harsh environments. Lubrication: Pre-filled with high-performance lithium-based grease (NLGI 2) for lifetime lubrication, eliminating maintenance needs. Precision Engineering: Smooth tread finish (Ra ≤ 0.8 μm) reduces friction with track chains,…

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oem Forging 50Mn Steel Bottom Track Rollers For E70 Cat Undercarriage

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