Types of NBK Couplings & its Features | SEIMITSU Factory Automation Pvt. Ltd.

1. NBK Couplings and its Various Types Short Description of NBK: NBK is Japan based organization and 465 years old company which manufacturers world class couplings, Special Screws and Machine Element. Apart from NBK Products are using in Various Industries like Semiconductor, Medical, Machine Tool and Robotics. SEIMITSU Factory Automation Pvt. Ltd. is an authorized distributor of NBK in India. What is coupling: A Coupling is device in order to connect two shafts like (Motor and Gearbox) together at their ends for the purpose of transmitting power and torque to gearbox and main purpose of coupling is to avoid misalignment of two rotating equipment. Basically, coupling is mechanical device that is using to cater ends of adjacent parts. During operation couplings work fully functionally disconnection never possible however some time due to exceeding torque limit, there may have chances for couplings to slip or disconnect but that torque-limiting couplings are used.

2. Types of Couplings: 1.High Gain Type Couplings 2.Disk Type Couplings 3.Jaw Type Couplings 4.Slit Type Couplings 5.Oldham Type Couplings 6.Cross Joint Type Couplings 7.Rigid Type Couplings 8.Bellow Type Couplings 9.Serration Type Couplings 10.Flexus Type Couplings 1.High Gain Rubber Type Couplings: The High Gain Rubber Type Couplings suppress hunting, improve limit gain of servomotors, thereby reducing their stabilization time. These couplings speed and torque unevenness, caused by misalignment, will be suppressed Because of the couplings high damping ratio, they enable quick vibration absorption  Using these couplings causes actuator drive noise to be reduced. Comparing these couplings with disk and slit couplings, higher torque is allowed. For details, please click here: https://www.seimitsu.in/nbk-high-gain-type-coupling.html

3. 2.Disk Type Couplings Disk type flexible coupling High torque capacity, torsional stiffness and excellent response Zero backlash Double stainless-steel disks absorb parallel, angular misalignments and shaft end-play Identical clockwise and anticlockwise rotational characteristics Maintenance free and excellent resistance to oil and chemicals finished bore product-Models featuring two different end bores also in stock For Details, please click here: https://www.seimitsu.in/nbk-disk-type-couplings-supplier-in- india.html

4. 3.Jaw Type Couplings Jaw type couplings have a unique configuration that assemble with press-fitted into the hub of the sleeve on both sides can transfer zero backlash at low torque Flexibility is excellent. In addition to the eccentricity, declination, you can also absorb torsional vibration Standardized sleeve of three different hardness. You can choose according to the application. Electrical insulating properties Characteristics of the forward and reverse are the same. Usable temperature: -20 ~ 60 Shaft hole in the finished product, a combination of different diameter shaft hole is also standardized For details, please click here: https://www.seimitsu.in/nbk-jaw-type-coupling.html

5. 4.Slit Type Couplings: Slit Type Coupling is a one-piece metallic spring coupling Extremely high torsional stiffness, low inertia and excellent response Manufactured from extra super duralumin (A7075) - the highest strength aluminum alloy Absorption of parallel, angular misalignments and shaft endplay by spring action Identical clockwise and counter-clockwise rotational characteristics Finished products featuring two different end bore diameters available in stock For details, please click here: https://www.seimitsu.in/nbk-slit-type-couplings.html

6. 5.Oldham Type Couplings: Oldham type flexible coupling Slippage between hubs and spacer allows high parallel and angular misalignments Minimized load on shaft caused by misalignments Simple configuration enables ease of assembly Excellent electrical insulation Operational temperature: -20~80 Oldham coupling with no protrusions feature low allowable misalignment (1~1.5°) due to interference between the spacer and hubs at the proximity of A bending moment is generated as well. The MOL series features a high maximum angular misalignment (3°), enabled by the protrusions which act as points of support. No bending moment is generated and the shaft load is minimized. For details, please click here: https://www.seimitsu.in/nbk-oldham-type-couplings.html

7. 6.Bellow Type Couplings: High torsional stiffness and response Spring action bellows configuration absorbs parallel, angular and shaft end-play misalignments Constant velocity even under misalignment Identical clockwise and counter-clockwise rotational characteristics Bellows available in stainless steel or phosphor bronze (Hub : Aluminum Alloy) Finished products featuring two different end bore diameters available in stock. For details, please click here: https://www.seimitsu.in/nbk-bellow-type-couplings-distributor-in- india.html

8. 7.Cross Joint Type Couplings: Cross joint coupling type Slippage between the bush and pin allows for parallel and angular misalignments Minimized backlash achieved through high precision fit of pin and bush Minimized load on shaft caused by misalignments Identical clockwise and counter-clockwise rotational characteristics