GQZ 6309ZZ Double Metal Shielded Deep Groove Ball Bearing 45×100×25mm For Medium-Heavy Duty Machinery

6309ZZ is single row deep groove ball bearing equipped with double-sided stamped metal shields. It features wider cross-section and higher load capacity compared with 62 series bearings of the same bore size. This bearing can bear radial load and minor bidirectional axial load simultaneously. Double metal shields prevent dry dust and particle pollutants from entering. Factory pre-filled grease enables direct assembly without frequent refueling. Widely applied in electric motors, water pumps, belt conveyors, agricultural machinery and medium-heavy load rotary assemblies.

Formal quotation will be sent within 24 hours upon your inquiry.

Model: 6309ZZ

Dimensions: d45 mm, D100 mm, B25 mm

Net weight: approx 0.63 kg

Dynamic load rating Cr: 52.8 kN

Static load rating Cor: 31.8 kN

Limiting speed: Grease 7000 rpm, Oil 8400 rpm

Structure: Single row deep groove ball bearing, double metal shielded

Material: GCr15 bearing chrome steel, stamped steel cage

Clearance: Standard CN clearance; C3 clearance optional

Alternative versions: open type, 2RS rubber sealed version

Complete dimension drawings and load data available on request.

1. Robust structure with greater load capacity than corresponding 62 series bearings
2. Double-sided metal shields offer reliable dust protection under dry working environments
3. Capable of bearing radial load plus slight bidirectional axial load
4. Pre-filled long service life grease, convenient for direct installation
5. Low vibration and stable running performance under medium continuous speed
6. Customizable options: OEM laser marking, anti-rust strengthening treatment, special clearance grades
7. Suitable for medium-heavy load general industrial transmission systems.

• Industrial electric motors, ventilation fans and blowers
• Centrifugal water pumps and light compressor assemblies
• Belt conveyors, packaging and processing machinery
• Agricultural machinery and construction auxiliary equipment
• General gearboxes and medium-speed rotary shafts
• Medium-load rotating positions with dry and dusty operating conditions

25 years professional bearing manufacturer

Products exported to over 50 countries worldwide

Strict inspection on raw material hardness, surface finish, load capacity and rotational smoothness before delivery

24-hour professional technical support for sealing and clearance selection guidance

Sufficient bulk stock for machinery distributors

We supply stable dimensional accuracy, reliable performance and long-term cooperative support.

GCr15 raw material chemical composition and hardness inspection

Complete quenching & tempering heat stabilization treatment

Precision superfinishing grinding for rings and steel balls

Shield stamping and assembly processing

Full dimension tolerance, static & dynamic load and rotational performance testing

If you need 6309ZZ deep groove ball bearings:

Send inquiry to obtain below supports:

• Quick formal quotation within 24 hours
• Professional sealing and clearance selection advice
• Custom marking and special technical requirements available
• Competitive factory direct price
• Contact our sales team for full technical datasheets and formal offer.