Adapter Sleeves, Nut & Washers
Adapter Sleeves, Nut & Washers Supplier
We are a leading Adapter Sleeves, Nut & Washers Supplier in Kolkata, Odisha, providing precision-engineered mounting solutions for bearings. Our products are manufactured to SKF standards, ensuring high strength, durability, and perfect fitment for industrial applications.
What is an Adapter Sleeve?
An Adapter Sleeve is a cylindrical component used to mount bearings with tapered bores onto cylindrical shafts. It helps in proper positioning of the bearing and simplifies installation and removal. Key Functions:- Allows mounting of tapered bore bearings on straight shafts
- Compensates for minor variations in shaft size
- Enables quick assembly and disassembly without damaging bearings
What is a Nut?
In bearing assemblies, a Nut (Lock Nut) works with an adapter sleeve to secure the bearing in place. It is threaded onto the sleeve to tighten and lock the bearing in position.Key Functions:
- Holds the bearing securely on the sleeve
- Prevents axial movement during operation
- Works with a washer to prevent loosening
What is a Washer?
A Washer (Lock Washer) is placed between the nut and the bearing or housing to prevent the nut from loosening due to vibration.Key Functions:
- Locks the nut in place
- Provides stability and prevents back rotation
- Works as a safety component in high-speed applications
Technical Specifications
| Component | Material | Standard | Thread Type | Size Range |
| Adapter Sleeve | High-Strength Steel | ISO 2982-1 | Metric / Inch | H204–H240, H304–H340 |
| Lock Nut | Carbon Steel / Alloy Steel | ISO 2982-2 | Metric / Inch | KM0–KM40 |
| Lock Washer | Spring Steel / Carbon Steel | ISO 2982-2 | – | MB0–MB40 |
Uses of Adapter Sleeves, Nuts & Washers
These components are essential in:- Electric Motors – Securing bearings on motor shafts
- Pumps & Compressors – Reducing vibration and improving bearing life
- Industrial Gearboxes – Reliable locking of bearings in gear shafts
- Fans & Blowers – Proper mounting for smooth rotation
- Conveyor Systems – Stable bearing positioning in moving systems
- Mining & Cement Plants – Heavy-duty bearing assemblies
Why Choose Us?
- Wide size range for all bearing applications
- Compatible with major bearing brands (SKF)
- Timely supply across Kolkata, Delhi NCR, Bangalore, Mumbai, Hyderabad, Chennai, Ahmedabad, Punjab, and more
- Competitive prices with assured quality

