Medium series

Medium Series are precision-engineered for moderate to high-speed applications. These bearings are versatile, simple in design, non-separable, and suitable for radial and axial loads in both directions.

Product Name :- Single Row Deep Groove Ball Bearing – Medium Series
Brand :- LOCUS
Manufacturer :- Adarsh Bearings Pvt. Ltd.
Bearing Type :- Radial Deep Groove Ball Bearing
Number of Rows :- Single
Series :- Medium Series
Bore Diameter Range :- 10 mm to 200 mm
Outer Diameter Range :- 30 mm to 300 mm
Material :- Chrome Steel (AISI 52100) / Stainless Steel (Optional)
Lubrication :- Grease or Oil (Pre-lubricated)
Seal Type :- Open / ZZ (Metal Shielded) / 2RS (Rubber Sealed)
Precision Class :- P0 / P6 / P5 (as per customer requirement)
Application Standard :- DIN 625-1, ISO 15, ISO 281
Origin :- Made in India – Adarsh Bearings Pvt. Ltd.

Description

1. Description

LOCUS Single Row Deep Groove Ball Bearings – Medium Series are precision-engineered for moderate to high-speed applications. These bearings are versatile, simple in design, non-separable, and suitable for radial and axial loads in both directions. Built with high-grade chrome steel, they offer high load capacity, durability, and low noise performance—ideal for industrial, automotive, and machinery sectors.

2. Specification

Parameter	Specification
Material	Chrome Steel (GCr15 / AISI 52100)
Lubrication	High-Speed Grease (Standard)
Bore Diameter	10 mm to 200 mm
Outer Diameter	30 mm to 300 mm
Ball Material	Hardened Steel
Cage Material	Steel / Brass / Nylon (optional)
Shield Type	Open / ZZ / 2RS
Operating Temperature	-30°C to +150°C
Dynamic Load Rating	As per ISO 281
Static Load Rating	As per ISO 281

3. Working

These bearings allow rotation with minimal friction. The balls roll between an inner and outer race, reducing resistance and enabling smooth operation under both radial and axial loads. The medium series ensures balance between load-bearing and compact size, ideal for general engineering applications.

4. Principle

The bearing operates on rolling friction where the balls separate the races, reducing surface contact. The curvature of the raceways aligns with the ball diameter to optimize load distribution. It allows for:

- High-speed operation
- Low torque
- Reduced heat generation

5. Assembly

Clean the shaft and housing.
Align the inner ring with the shaft.
Use a press or bearing heater for interference fits.
Do not apply force on the outer ring during inner ring mounting.
For sealed types, avoid removing shields or seals.

6. Installation Process

Ensure shaft/housing tolerance as per ISO H7/h7.
Use proper tools like induction heaters or mechanical presses.
Maintain alignment between bearing and shaft.
Apply lubricant if not pre-lubricated.
Do not hammer the bearing directly.

7. Technical Specification (Example – 6205ZZ Medium Series)

Attribute	Value
Bore Diameter (d)	25 mm
Outer Diameter (D)	52 mm
Width (B)	15 mm
Dynamic Load Rating (C)	14,000 N
Static Load Rating (Co)	7,800 N
Limiting Speed (Grease)	14,000 RPM
Limiting Speed (Oil)	16,000 RPM
Weight	0.15 kg

8. Troubleshooting

Problem	Cause	Solution
Overheating	Excessive speed, misalignment	Check lubrication and alignment
Noise during rotation	Contamination or wear	Clean/replace bearing
Premature failure	Improper fit, overload	Ensure proper fit and load distribution
Seal damage	Improper handling or over-greasing	Follow correct installation practices

9. HS Code (Harmonized System Code)

HS Code: 84821012
Description: Ball Bearings (Single Row, Radial)
Applicable Duty Drawback: Yes (depends on country)

10. FAQ

Q1: Can this bearing handle axial load?
Yes, it can handle both radial and axial loads.

Q2: Are these bearings pre-lubricated?
Yes, sealed (2RS/ZZ) bearings are pre-lubricated.

Q3: Can I use these for high-speed motors?
Yes, ensure to select the right precision class (P6/P5).

Q4: Do you provide OEM/White-label branding?
Yes, available under the LOCUS brand by Adarsh Bearings Pvt. Ltd.

11. Applications

✅ Electric Motors
✅ Pumps & Compressors
✅ Agricultural Machinery
✅ Gearboxes
✅ HVAC Systems
✅ Textile Machines
✅ Industrial Equipment
✅ Automotive Wheels (light-duty)
✅ Elevators & Conveyor Systems