NORD Drivesystems Pvt. Ltd. Hinjewadi, Pune, Maharashtra

A worm gear set consists of two parts, a worm gear and a worm wheel. The two gears are often made out of two different materials (a steel worm and a bronze worm wheel). Worm gears use a sliding action (rather than a rolling action) and transfers motion at a right angle, as illustrated in the image below. Worm gears offer their best benefit when a large ratio is required, as a worm gear can achieve a larger total ratio with less gear sets. This means a smaller, less expensive gearbox can be used which is appealing for smaller machinery or when trying to keep installation costs low. Typically the highest ratio a worm gear set can achieve is about 100:1. Some worm gear sets cannot be back-driven which is advantageous in applications where braking is required. Worm gears can be used as a secondary locking or braking system to stop components from moving in the reverse direction.

BLOCK worm gear units are characterised by their robust design. The UNICASE principle, which has been tried and tested since the 1980s provides high functionality, low maintenance and a long service life.

The basic design of a worm gear consists of two parts: a steel worm gear and a bronze worm wheel. The two different metals help to improve the otherwise low efficiency of the worm gear design that is due to the sliding action of the two gears.Worm gears are designed in a way that allows for a high total gear ratio with a small number of gear sets. This results in the ability to achieve low output speeds and high output torque. It also allows for the lower output speed and increased torque to be achieved in a small gear housing.

a large vessel that is constructed with a homogenizer, an agitator, and various dispensing mechanisms for the introduction of ingredients into the mixing process. Until recently, toothpaste batch production vessels were designed for no more than 4,000 to 5,000 liters. The two newly engineered mixers by EKATO hold roughly twice the volume of the largest previously available equipment.

NORD fulfils all of the current efficiency regulations and supplies a wide range of energy saving motors for the international market, with which operating costs can be considerably reduced. In addition to reduced energy consumption, all energy efficient NORD motors feature a very durable, low maintenance design. The series are designed so that in most cases the external dimensions of the motors remain unchanged for a change to a higher energy efficiency class. Normally, no mechanical modifications need to be planned.

Mating shaft tolerances are normally tighter for shrink discs due to the gripping forces needed. Customer shaft diameter has to be machined according to ISO h6 or f6 tolerances (f6 easier to machine but lower gripping forces as shown in catalog). Refer to Table 1 for h6 and f6 tolerances for customer shafts. Remove transportation spacers (if provided) located between outer collars. Do not take the unit apart.

In combination with central or decentralised frequency inverters, parallel shaft geared motors provide a wide range of system solutions with ultimate efficiency and economy in all systems. The UNICASE concept guarantees long life cycles and low maintenance. Solid or hollow shaft (keyed, Gripmaxx and Shrink disc) Shaft mount, bolt-on B5 flange, footed and CEMA standard screw conveyor mounting designs available

The footed version is used with pumps that have a solid input shaft. The gear reducer and pump are mounted onto a base plate joined by a coupling and covered by a guard for protection.Some pumps offer an input flange and a hollow shaft which mates with a flanged Gearmotor, eliminating the need for a base plate, coupling and guard.

Intelligent drive solutions with a endless number of application options: This has been NORD's motto for over 50 years. Today we are one of the global leaders in the industry – the result of modern in-house production down to the smallest detail, complete quality control and strict alignment to customer requirements. Optimally selected components ensure the perfect fit, flexibility and durability of our drive solutions. Benefit from a complete range of drive technology, which includes gear units, AC electric motors, industrial gear units, frequency inverters and motor starters for centralized and decentralized drive control.

keyless interchangeable bushings for mounting NORD hollow shaft reducers onto a large range of driven solid machine shaft sizes. The Gripmaxx™ system was developed using the latest in Finite Element Modeling (FEM) technology in order to best optimize material selection, mechanical design, & performance. Gripmaxx™ provides a high-capacity, zero-backlash, interference fi t to the driven machine shaft thus minimizing the possibility of fretting corrosion. Gripmaxx™ also eliminates the typical assembly and disassembly challenges of using interference fi ts by providing generous assembly and disassembly clearances to help ensure easy installation and removal of the gearbox. Torque is transmitted via the tried and tested NORD Shrink Disc, which in turn produces high compressive forces and friction between the reducer hollow shaft, split-bushing and solid machine shaft.

Shock-absorbing cast iron housings EN-GJL-200 (GG20) and reinforced drive end shields made from robust ductile cast iron EN-GJS-400-15 (GGG40) ensure maximum resistance against mechanical stress. Individual project-based winding adaption possible. Natural convection cooling (IC410), totally enclosed design.

NORD supplies a wide range of electric motors, which meet all common global efficiency regulations and standards. Our motors are used in many applications because they are not just powerful and high quality, but can also be combined with the full NORD gearbox portfolio. Whether in agitators, conveyor systems, intralogistics or the food industry: NORD electric motors can be found wherever high performance is required. They operate reliably over many years with very high efficiency (up to 95%). This saves operating costs for our customers and at the same time helps protect the environment.

Conveyor Drive reducers are designed to be a ‘mounting flange and output shaft drop-in’ for existing ‘industry-standard’ overhead conveyor drives.Like all of our standard industrial products, the conveyor drive units offer heavy-duty construction and high quality precision machined components. In addition, these drives incorporate the standard NORD VL3 spread bearing design with dry cavity.

The “GP…” type rectifi ers provide improved brake performance in both brake release time and stopping time. The GP is a two-stage “push” design that uses both full-wave and half-wave rectifi er operation; when power is fi rst applied, it operates as a full-wave rectifi er for approximately 250ms, after which it operates as a half-wave rectifi er. There are two ways to apply GP rectifi ers. In the fi rst method, known as “Overexcitation,” the brake is released very quickly. In the second method, known as “Reduced Power Holding,” the brake is set very quickly, allowing for very fast stopping times.