Thickened Electropolished 304 SS Housing & IP69K Full Sealing
One-piece thick stainless steel casting with full mirror electropolishing, no recesses or exposed countersunk screws to avoid dirt buildup. Triple composite sealing reaches IP69K rating, withstands 80℃ high-pressure water jet and repeated acid/alkaline disinfection, ideal for long-term sanitizing on slaughter, cooked food and pharmaceutical clean lines.
90mm Large Center Distance Reinforced Worm Gear Pair
90mm wide center distance with enlarged module & thickened tooth design. Deep carburized quenched worm matches thick high-tin bronze wheel for larger meshing contact area, max rated torque up to 725N·m with full ratio range 5–100, compatible with motors up to 4kW, far stronger than NMRV075 under heavy shock loads.
Multi-spec Universal Composite Mounting Base
Widened integrated reinforced base supports dual B5/B14 input flanges, horizontal foot mounting, vertical inverted installation, side mounting and dual hollow output shafts. Multiple input shaft diameters 19/24/28mm fit 1.1–4kW servo, stepper and 3-phase motors for heavy conveyors, large-volume mixers and heavy lifting equipment.
Ultra-high Rated Torque & Stable Heavy-load Continuous Operation
The enlarged 90mm transmission cavity greatly raises load limit. It operates without slipping or tooth deformation under full load for long hours, withstands instant impact loads perfectly with low power loss for 24h heavy-duty production lines.
Large-volume Cavity Efficient Heat Dissipation, Low Temperature Rise
Expanded internal oil chamber plus excellent thermal conductivity of stainless steel shell, built-in pressure balance breather equalizes internal oil temperature. Max temperature rise below 68℃ under full load, preventing oil seal aging and leakage caused by overheating.
Full Food-grade Sealing Parts & Extended Maintenance Cycle
Equipped with chemical-resistant 4-lip FKM oil seals, optional H1 food-grade lubricant. Full IP69K barrier blocks moisture, grease and brine intrusion; stainless steel shell resists pitting corrosion, doubles lubrication replacement interval and cuts labor maintenance cost.
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NMRV 090 Stainless Steel Gearbox |
Q: What's the max motor power and peak torque of NMRV090 stainless steel gearbox?
A: It fits standard IEC motors from 1.1kW to 4kW with maximum allowable output torque 725N·m, around 76% higher load capacity than NMRV075 at same ratio for heavy conveyor and mixing applications.
Q: How much lubricant is required for new NMRV090, and when to change oil for the first time?
A: Fill 0.35L food-grade 320# synthetic worm gear oil on initial use. First oil change after 400 working hours, subsequent replacement every 2500 hours under stable clean working conditions.
Q: Can NMRV090 stainless steel gearbox be used for screw lifting equipment under heavy load?
A: Absolutely. It delivers high torque and reliable self-locking at high ratios to hold loads steadily without sliding after shutdown. A brake motor can be added for extra safety. Four types of screw ends are optional to match all screw drive systems.
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