Nachi Technology India Pvt. Ltd.

Sector 44, Gurugram, Haryana

• Full compliment double-row cylindrical roller bearings with ribs on inner and outer rings
• High dynamic and static radial load capacity fairly large moment load and some axial load can also be supported.

• Deep Groove ball bearings are the most popular of all the ball bearing types because they are available in a wide variety of seal, shield and snap-ring arrangements.
• The bearing ring grooves are circular arcs made slightly larger than the radius of the ball. The balls make point contact with the raceways (elliptical contact when loaded). The inner ring shoulders are of equal height (as the outer ring shoulders).
• Deep Groove ball bearings can sustain radial, axial, or composite loads and because of simple design, this bearing type can be produced to provide both high-running accuracy and high-speed operation.

• Longer LifeAdopted NACHI original seal design to prevent contamination and grease leakage.Contains special grease for wider temperature ranges and longer life.
• Smooth and Quiet OperationThe precision level of our bearing components has been enhanced to ensure smooth and quiet operation.
• Low TorqueLower rotating torque by improving seal lips.
• Electric MotorsQuiet operation realized by proper clearance, recommend fitting practice. Lower noise lubricants. Suitable for all speed ranges applications requiring low noise.
• Automotive AlternatorsLonger life in vibrations and high temperature environments.
• Automotive StartersHigh reliability in periodic use of vibrations and high temperature environments.
• CompressorsLong life pump rotors which compress air in low temperature and low viscosity lubrication environments.
• BlowersQuiet and stable operation on fan rotors at high speed, in environments with vibration and high temperatures
• TransmissionsCompact design for light weight to achieve high performance.

• The raceways of both the inner and outer rings of this bearing type are made with a set contact angle.
• Single-row Angular Contact ball bearings can sustain radial, axial or composite loads, however, any axial load must be in one direction.Larger contact angle type has better axial load capability.Small contact angle type has higher permissible speed capability.
• This bearing type is generally used in adjacent positions.
• These bearings are designed with three contact angle classifications as shown in Table 1.
• Normally, contact angle A design and B design are fitted with a cage as shown in Table 2.
• High precision (JIS/ISO class 5 or higher) may be fitted with a machined cage of bronze or phenolic resin or a polyamide cage.Contact angle C design are generally applied high precision, JIS (ISO) class 5 or higher, and are fitted with a machined phenolic resin cage or a polyamide cage.
• Machine tool for High speed precision Machining (High-speed Inline Center)
• Precision Spindle Support

• The construction of this ball bearing is similar to mounting two single row angular ball bearings back to back(DB).
• Capacities of double row ball bearing is less than single row since few balls can be inserted per row.
• This bearing type can sustain radial, moment and bi-directional axial loads.
• These type of bearings are made in two contact angle levels as shown in Table. They are selected according to sustain axial and moment load.
• Cages are made of pressed steel.
• Some sizes of Double-row Angular Contact Ball Bearing are available with contact seals (2NS) or shields (ZZ).

Double-row Angular Contact Ball Bearing Contact Angles and Symbols

• This type is constructed with the inner ring and ball assembly contained within an outer ring which has a spherical raceway for self aligning.
• Self-aligning Ball Bearings are particularly suitable for applications where misalignment occurs from errors in mounting or from shaft deflection.
• Self-aligning Ball Bearings are particularly suitable for applications where misalignment occurs from errors in mounting or from shaft deflection.
• This bearing should only be used in light axial load applications due to the small axial capacity. For applications where the bearing load (particularly axial load) carrying capacity is insufficient, spherical roller bearings, which have the same self-aligning property, should be used instead.
• Bearings are fitted with pressed steel cage or polyamide cage. The suffix G of bearing number on the packing surface indicate polyamide cage.
• This type is often used in conjunction with Plummer Block Housings in blowers, fens and belt conveyors.
• Larger bearings of this type are used in Plummer Block units.

• Larger load capacity than single-row cylindrical roller bearings.
• Used for machine tool spindles etc.
• This bearing type has large radial load capacity because the raceways and rollers are in line contact with each-other.
• Since "Rollers" are guided with the "Ribs" of the inner or outer ring, this bearing type can withstand high-speed operation
• Machine tool Spindles, Axles or traction motor of railroad vehicles.Can be used where large radial load is applied since it is a double row bearing.

• A single-row Tapered roller bearing can support a combined radial and axial load.
• Used as a combination or a double-row.

• The spherical raceway of outer rings are manufactured and assembled focusing to the center of bearings. Barrel type rollers and cages are assembled with inner rings.
• NACHI Spherical Roller Bearings are suitable for high axial , impulse and heavy load applications such as paper manufacturing, rolling and other large size machineries.
• Increase Load Rating
• Longer Operating Life
• Low Noise
• High Temperature Lasting (up to 200 Celsius)

• Suitable for application where misalignment can arise from error in mounting or from shaft deflection.
• Extremely high radial load capability because of the line contact to the rollers and raceway.
• Wide array of product line : from ID 25mm , 0ver OD 1000mm
• Easy mounting and dismounting by tapered bore.
• Press fitting adapter sleeves make internal clearance adjustment.

• Thrust ball bearings are designed to handle axial loads only.
• Thrust ball bearings consist of ball, retainer and both shaft and housing washers which contain grooves for the ball.
• The double Direction Thrust ball bearings can support bi-directional loads.
• The bearings with spherical housing washer can prevent static misalignment.

• Carrying axial loads in both directions.
• This Bearing consists of 3 kinds of grooved washer bearing rings, 2 kinds of cage and ball assembly.
• Aligning seat washers with an aligning surface radius are also available for ease of design and mounting against a flat housing shoulder.

• The raceway of housing washer of this bearing type is spherical with the center of the radius located on the bearing axis. The design provides self-alignment capability to the bearing. The contact angle () is approximately 45 enabling the bearing to support axial load and a small to moderate amount of radial load.
• This bearing type is often used for injection molding machines, crane hooks and other large machines.

• To obtain predetermined preload clearance after attachment, initial internal clearance has setup. Preload adjustment during an assembly process is unnecessary.
• The type with a built-in seal has unnecessary seal fixation during an assembly process.
• Lightweight, compact and handling is easy.

• Bearings for axles, gear boxes and traction motors
• Exclusive design for each application.Cylindrical roller bearings are mainly used for axles with heavy radial load (Double-row tapered roller bearings have also used recently).Tapered roller bearings are used for gear boxes where large thrust loads are expected.Deep-groove ball bearings and cylindrical roller bearings are used for traction motors.