BC Type Coupling Manufacturer in Ahmedabad, India
BC Type Coupling from Super Mech Industries is made in Ahmedabad, India in 20 catalogue sizes, BC-1 to NBC-11, rated from 77 Nm to 23,780 Nm, with bores finished to order up to 190 mm.
The BC Type Coupling is a flexible shaft coupling designed to transmit torque between two shafts while accommodating misalignments and providing vibration damping. It typically consists of two hubs connected by an elastomeric spider element, which helps in absorbing shocks and reducing vibrations.
Key Features
- Vibration dampening
- Electrical insulation between shafts
- Easy installation
- Economical solution
Specifications
- Torque Range: 5-1,400 Nm
- Bore Sizes: 3-80mm
- Spider Hardness: Multiple durometer options
- Speed: Up to 8,000 RPM
- Spider Materials: Polyurethane, Hytrel, or Nitrile
BC type couplings — ratings and dimensions
Sizes BC-1 to NBC-11. Torque in Nm; bore range and dimensions in mm; max speed in rpm.
| Size | No. of pins | Torque (Nm) | Bore min (mm) | Bore max (mm) | Max speed (rpm) | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BC-1 | 3 | 77 | 12.7 | 28 | 6100 | 95 | 79 | 38 | 3 | 40 | 58 |
| BC-2 | 4 | 310 | 12.7 | 30 | 5100 | 114 | 99 | 48 | 3 | 42 | 70 |
| BC-2A | 6 | 516 | 16 | 42 | 4400 | 130 | 105 | 51 | 3 | 60 | 70 |
| BC-3 | 4 | 621 | 16 | 48 | 3600 | 160 | 107 | 51 | 5 | 68 | 114 |
| BC-4 | 4 | 831 | 20 | 65 | 3000 | 191 | 125 | 60 | 5 | 90 | 114 |
| BC-4A | 6 | 1241 | — | — | — | — | — | — | — | — | — |
| BC-5 | 6 | 1662 | 25 | 75 | 2600 | 225 | 157 | 76 | 5 | 105 | 114 |
| BC-6 | 8 | 2359 | — | — | — | — | — | — | — | — | — |
| BC-6A | 10 | 2932 | 45 | 90 | 2300 | 254 | 183 | 89 | 5 | 135 | 114 |
| BC-6B | 12 | 3533 | — | — | — | — | — | — | — | — | — |
| NBC-7 | 12 | 4154 | 60 | 115 | 1950 | 290 | 235 | 115 | 5 | 170 | 114 |
| NBC-7A | 14 | 5195 | 60 | 120 | 1900 | 300 | 235 | 115 | 5 | 180 | 130 |
| NBC-8 | 16 | 5816 | 65 | 130 | 1850 | 310 | 225 | 125 | 5 | 195 | 130 |
| NBC-8A | 15 | 7268 | 65 | 135 | 1650 | 340 | 265 | 130 | 5 | 200 | 130 |
| NBC-8B | 12 | 8729 | 70 | 140 | 1590 | 360 | 276 | 135 | 6 | 210 | 200 |
| NBC-9 | 13 | 9932 | 80 | 150 | 1470 | 390 | 316 | 155 | 6 | 225 | 200 |
| NBC-9A | 15 | 13274 | 90 | 160 | 1400 | 410 | 336 | 165 | 6 | 240 | 200 |
| NBC-10 | 16 | 14420 | 100 | 170 | 1300 | 440 | 366 | 180 | 6 | 255 | 200 |
| NBC-10A | 17 | 18050 | 110 | 180 | 1200 | 480 | 386 | 190 | 6 | 270 | 212 |
| NBC-11 | 20 | 23780 | 120 | 190 | 1080 | 530 | 406 | 200 | 6 | 285 | 212 |
- BC-4A, BC-6 and BC-6B are intermediate pin counts on the BC-4 / BC-6 bodies; the spec sheet lists only their torque.
- NBC-8 max speed is printed as 185 rpm on the spec sheet; the series runs 1950 → 1900 → 1650, so 1850 rpm is shown.
Source: SMI spec sheet bc-type-coupling.pdf.
Applications
- Pumps and motors
- Light industrial equipment
- HVAC systems
- Food processing machinery
- General purpose power transmission
Frequently Asked Questions
What is the BC Type Coupling used for?
The BC Type Coupling is used in pumps and motors, light industrial equipment, hvac systems, food processing machinery. Simple, economical coupling with elastomeric spider element for vibration dampening and electrical insulation.
What are the key specifications of the BC Type Coupling?
Key specifications include Torque Range: 5-1,400 Nm; Bore Sizes: 3-80mm; Spider Hardness: Multiple durometer options; Speed: Up to 8,000 RPM. Custom sizes are available on request.
Does Super Mech Industries offer custom BC Type Coupling sizes?
Yes. SMI manufactures the BC Type Coupling with custom bore, material, and design to your drawing, dispatched from our Odhav, Ahmedabad facility — standard sizes typically ship within a week.
Is the BC Type Coupling from SMI ISO certified?
Yes. Super Mech Industries is ISO 9001:2015 certified (Certificate No. 09114716A) and holds government ZED certification, manufacturing the BC Type Coupling in Ahmedabad, Gujarat, India, with exports to 29 countries.
What sizes of BC Type Coupling does SMI manufacture?
SMI lists 20 sizes from BC-1 to NBC-11 rated from 77 Nm to 23,780 Nm, with bores finished up to 190 mm. The full size chart with dimensions is on this page and on the spec sheet.
Super Mech Industries — Odhav, Ahmedabad, Gujarat 382415, India. Phone: +91 63510 70577. Email: smigvs@gmail.com. ISO 9001:2015 certified.