描述
EP-NRV075 Solid Shaft Aluminium Worm Gearbox – Product Overview
这 EP-NRV075 is the heavy medium-duty NRV solid-shaft worm gearbox for mining drives, industrial agitators, and remote-site applications requiring diesel-hydraulic motor compatibility. With a solid Ø24j6 input shaft instead of an IEC motor flange, the NRV075 accepts any motor type via standard shaft coupling – servo motors, stepper motors, DC brushless, hydraulic motors, and even combustion engine PTO drives. This universal motor compatibility is the defining advantage of the NRV series over the IEC-flange-only NMRV series. At approx. 10 kg with 75 mm centre distance and Ø28h6 output shaft, it delivers up to 230 Nm output torque across ratios 7.5-100:1. The die-cast aluminium alloy housing provides corrosion resistance and thermal efficiency superior to cast iron while saving 30-50% in weight. Purpose-designed for mining conveyor drives, industrial agitators, and off-grid field equipment where the solid 24 mm input shaft couples to diesel-hydraulic motors and heavy-duty DC drives.
EP-NRV075 Technical Specifications
| 范围 | 价值 |
|---|---|
| 模型 | EP-NRV075 |
| 中心距离 | 75 mm |
| 重量（不含电机） | approx. 10 kg |
| 输入轴 | Ø24j6 (solid) |
| 输出轴 | Ø28h6 |
| 输出轴长度 B | 60 mm |
| 输出 G1 | 120 mm |
| 总体输出 L | 192 mm |
| 输出线程 | M10 |
| 输出键槽 b1 | 8 mm |
| 输出键槽 t1 | 31 mm |
| 比率范围 | 7.5-100:1 |
| 输入功率范围 | 0.25-3 kW |
| 最大输出扭矩 | 230 Nm |
| 房屋材料 | 压铸铝合金，喷漆表面 |
| 蜗轮 | 锡青铜合金 |
| 蜗杆 | 表面硬化钢，精密研磨 |
| 润滑 | 合成油，终身免费加注 |
| IP评级 | IP54 |
| 安装位置 | B3、B6、B7、B8、V5、V6 |
NRV075 Performance Data (n1 = 1400 rpm)
| 比率 | n2（转/分） | 扭矩（牛米） | 输入功率（千瓦） |
|---|---|---|---|
| 7.5 | 186.7 | 185 | 4.1 |
| 10 | 140 | 195 | 3.2 |
| 15 | 93.3 | 200 | 2.3 |
| 20 | 70 | 210 | 1.9 |
| 30 | 46.7 | 230 | 1.5 |
| 50 | 28 | 210 | 0.9 |
| 100 | 14 | 180 | 0.5 |
✓ 核心功能和优势
与 IEC 法兰 NMRV 系列不同，NRV 实心输入轴可通过标准轴联器与任何类型的电机连接——交流感应电机、直流无刷电机、伺服电机、步进电机、液压电机、气动电机和内燃机 PTO 驱动器。
Accepts couplings for motors up to 3 kW including diesel-hydraulic motors for remote-site and underground mining applications where mains power is not available.
Handles loaded conveyor drives and large agitator mechanisms at 10 kg – approximately half the weight of a comparable cast iron reducer for significantly easier field installation.
压铸铝外壳的散热速度是铸铁的三倍，可在高达 40°C 的环境温度下连续运行。出厂涂层可抵抗潮湿、化学品冲洗和轻微盐雾侵蚀。
⚙ 行业应用
Head drives for medium ore and aggregate belt conveyors. 230 Nm at 10 kg allows two workers to install without a crane – critical for underground mining where lifting equipment is limited.
Mixing vessel drives for chemical processing, water treatment, and food production. 28 mm output matches standard agitator shaft couplings for direct connection.
实心轴输入可与柴油液压马达、发动机动力输出轴驱动器和电池供电的直流电机连接——不仅限于市电供电的IEC电机。是偏远地区采矿、农业和建筑业的必备设备。
通过波纹管或梁式联轴器直接耦合伺服电机或步进电机，适用于位置控制应用。可实现IEC法兰蜗轮减速器无法比拟的角度精度。
⚙ 选择指南和安装位置
Choose the NRV075 when you need universal motor coupling flexibility – servo, stepper, DC, hydraulic, or PTO. If your application uses only standard IEC AC motors, the NMRV075 with direct flange mount may offer a simpler installation. Both NRV and NMRV share identical output shaft specifications, torque ratings, and housing dimensions at each size.
| 位置 | 代码 | 油音 |
|---|---|---|
| 水平的 | B3 | 标准填充 |
| 倒 | B8 | 增加填充 |
| 垂直向上 | V5 | 减少填充 |
| 垂直向下 | V6 | 最大填充 |
| 壁挂式左/右 | B6/B7 | 根据图表 |
⚖ NRV铝制蜗轮减速器与铸铁蜗轮减速器对比
与传统的铸铁减速器相比，NRV 铝制蜗轮减速器重量显著减轻，耐腐蚀性更强，散热性能更佳——此外，通过实心输入轴，还可实现通用电机联轴器。
| 特征 | 铝制止回阀 | 铸铁 |
|---|---|---|
| 重量 | 30-50% 打火机 | 较重 |
| 腐蚀 | 出色的 | 贫穷的 |
| 热 | 优越的 | 缓和 |
| 成本 | 降低 | 更高 |
| 输入轴 | 固体通用联轴器 | 通常固定法兰 |
| 电机兼容性 | 通过联轴器的任何电机 | 通常仅限IEC标准 |
❓ 常见问题解答
▶ Can the NRV075 operate off-grid with diesel-hydraulic motors?
▶ How does the NRV075 compare to the NMRV075?
▶ 最大输出扭矩是多少？
▶ What mounting positions does the EP-NRV075 support?
▶ What accessories are available for the EP-NRV075?
★ 用户评价
“NRV075 on our underground conveyor drives. 10 kg means our crew carries them without a crane. Solid shaft to diesel-hydraulic motor for our off-grid mine site works perfectly.”
Phil W. – Goldfields Mining Co. (Australia)
“NRV075 on agitator drives with VFD motor for variable-speed mixing. 230 Nm handles our viscous product loads. Solid shaft gives us the motor flexibility we need.”
Martin K. – ChemProcess AG (Germany)
“6 NRV075 on our packaging palletiser drives with servo motors for precise pallet positioning. Aluminium weight advantage saves on our overhead gantry structure.”
David L. – TransPack Ltd (United Kingdom)
⚙ 相关产品和配件
⚙ 兼容电机： 通过实心轴联轴器连接任何类型的电机——伺服电机、步进电机、直流电机、液压电机、动力输出轴电机。 ⚖ 扭力臂： 尺寸匹配，适用于轴装式安装。 ⚙ 输出轴： 单实心和双实心输出轴可选。 ⚖ 保护套： 输入轴孔防尘保护。 ⚙ NMRV075: IEC motor flange version of the same 75 mm frame size.
Get Your EP-NRV075 Quote Today
如需了解价格、定制轴和OEM批量订购信息，请联系Ever Power。邮箱：[email protected]
