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Product Details
✓【DUSTPROOF SEALED-CAP + DOUBLE SEAL SYSTEM】The external dustproof sealed-cap adds an extra barrier at the bearing end. Combined with double sealed bearings, it creates dual protection—helping prevent dust, sand, and moisture intrusion that can cause bearing contamination, increased rolling resistance, and unwanted noise.
✓【PRECISION 2" NYLON WHEEL — LOW FRICTION / LOW TRACK WEAR】The 2" nylon wheel is engineered for low friction and high wear resistance. Compared with metal rollers, it’s gentler on the track (reduced track wear), rolls more smoothly, and helps reduce door vibration and track noise (noise reduction).
✓【HEAVY DUTY 7" STEEL STEM — STABILITY UNDER LOAD】The 7" steel stem provides increased rigidity and support (heavy duty / high load), reducing door wobble and the tendency to drift during operation. Ideal for residential and commercial garage doors with frequent open/close cycles (high-cycle use).
✓【LONG-LIFE BEARING PERFORMANCE — CONSISTENT SMOOTHNESS】The sealed design helps retain lubrication (grease retention), reducing friction heat and wear. Delivers long-term smooth, quiet performance and helps prevent the “gets louder / gets rougher over time” issue (long-lasting, low maintenance).
✓【10 PACK FULL DOOR REPLACEMENT + COLOR OPTIONS】The 10 pack makes it easy to upgrade a full door set in one go for more consistent operation. Available in White / Blue / Black (color difference only). Please confirm size before ordering: 7" Stem / 2" Wheel.