Description

The SKF 6309-2Z is a high-performance deep groove ball bearing, designed for demanding industrial and mechanical applications where reliability, high load capacity, and smooth operation are essential. Manufactured by SKF, one of the world’s leading bearing manufacturers, this bearing is part of the trusted 6300 series and is known for its durability, efficiency, and maintenance-friendly design.

This bearing features metal shields on both sides, indicated by the “2Z” suffix. These shields are non-contact and are securely fitted into the grooves of the outer ring, offering excellent protection against dust, dirt, and other contaminants while retaining the internal lubrication. The 6309-2Z is ideal for environments where moderate contamination is present, and re-lubrication is not easily accessible.

---

Key Specifications:

• Bearing Type: Deep Groove Ball Bearing

• Model: SKF 6309-2Z

• Inner Diameter (Bore): 45 mm

• Outer Diameter: 100 mm

• Width (Thickness): 25 mm

• Approximate Weight: 0.95 kg

• Shield Type: Double metal shield (2Z)

• Material: High-grade chromium steel

• Limiting Speed (Grease): Up to 8,000 RPM (depending on application)

---

Design and Performance

The SKF 6309-2Z is part of the deep groove ball bearing family, which is the most commonly used bearing type due to its versatility and simple, yet highly effective design. It features deep, uninterrupted raceways, allowing it to carry both radial loads and limited axial (thrust) loads in either direction. This makes it suitable for both high-speed and moderate-load applications.

Thanks to its low-friction operation, the 6309-2Z supports energy-efficient performance, reduces heat generation, and prolongs the life of surrounding components. The precision-engineered balls and raceways ensure stable and quiet rotation, even under continuous-duty conditions. Whether used in electric motors, gearboxes, or industrial pumps, this bearing offers consistent, dependable performance.

---

Construction and Materials

This bearing is made from high-quality, heat-treated bearing steel that provides superior fatigue resistance, hardness, and dimensional stability. The steel cage is durable and designed to maintain precise ball spacing, reducing noise and vibration during operation. The bearing is factory-lubricated with high-performance grease, which is sealed inside the bearing by the metal shields.

The 2Z metal shields are designed for minimal friction and are ideal for applications where contamination levels are low to moderate. While they don’t provide a watertight seal, they offer effective protection in most industrial environments and help extend the maintenance interval by keeping lubricants inside and debris out.

---

Applications

The SKF 6309-2Z is widely used in various industries due to its robust design and flexibility. Common applications include:

• Electric motors and generators

• Gearboxes and transmissions

• Pumps and compressors

• Industrial fans and blowers

• Agricultural machinery

• Construction and mining equipment

• HVAC systems

• Material handling equipment

Its balanced design allows it to operate effectively under varying speeds and load conditions, making it suitable for both OEM installations and MRO (maintenance, repair, and overhaul) applications.

---

Interchangeability

The SKF 6309-2Z is built to ISO standards, ensuring full compatibility and interchangeability with equivalent bearings from other manufacturers such as NSK, NTN, FAG, and Timken. This standardization allows for easy replacements and integration into existing systems without the need for modifications.

---

Summary

The SKF 6309-2Z Deep Groove Ball Bearing is a durable, shielded bearing built for high-speed, high-load applications in industrial and commercial machinery. With a 45mm bore, 100mm outer diameter, 25mm width, and weighing approximately 0.95 kg, it delivers smooth, low-friction performance with minimal maintenance. The dual metal shields provide reliable protection against contaminants, ensuring long service life and operational efficiency. Trusted by professionals around the world, the 6309-2Z is a dependable solution for challenging environments where performance and reliability are non-negotiable.

1VP Store
1Vendor Platform