GQZ 6315 ZZ/C3 Bearing 75×160×37mm Double Shielded With C3 Clearance For Motors & Pump Equipment

6315 ZZ/C3 is single row deep groove ball bearing. ZZ represents double-sided stamped metal dust shields; C3 means larger internal clearance than standard group, suitable for operating conditions with temperature rise and thermal expansion. This bearing can withstand radial load and minor bidirectional axial load simultaneously. Double metal shields block dry dust and impurities. Factory pre-lubricated for initial operation. Widely used in large industrial motors, centrifugal pumps, blowers, compressors and medium-heavy load rotary assemblies with elevated working temperature.

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

Model:

6315 ZZ/C3

Dimensions:

d75 mm, D160 mm, B37 mm

Net weight:

approx 3.65 kg

Dynamic load rating Cr:

166 kN

Static load rating Cor:

112 kN

Limiting speed:

Grease 3400 rpm, Oil 4100 rpm

Structure:

Single row deep groove ball bearing

Material:

GCr15 bearing steel, stamped steel cage

Clearance:

C3 increased clearance

Sealing:

ZZ double-side metal shield

Alternative versions:

Open type / 2RS rubber sealed available

Complete dimension drawings and load data available on request.

1. C3 enlarged clearance reserves space for thermal expansion under high-temperature operation
2. ZZ double metal shields prevent dry dust ingress on both sides
3. Capable of bearing radial load together with slight bidirectional axial load
4. Deep raceway design ensures stable medium-speed continuous rotation
5. Pre-greased at factory for convenient direct assembly
6. Customizable options: OEM laser marking, high temperature grease, precision grade upgrade

Stable supporting component for machinery generating obvious heat during operation.

• Large industrial electric motors and blower supporting shafts
• Centrifugal water pumps and air compressor rotary assemblies
• Agricultural machinery and general processing equipment
• Medium-speed gearboxes with operating temperature rise
• Mining auxiliary transmission mechanisms
• Medium-heavy load rotary equipment with dusty environment

• 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 clearance and model matching 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
• Metal shield assembly and pre-lubrication processing
• Full dimension tolerance, C3 clearance detection and rotational testing

If you need 6315 ZZ/C3 deep groove ball bearings:

Send inquiry to obtain below supports:

• Quick formal quotation within 24 hours
• Professional clearance and sealing selection suggestions
• Optional open / 2RS alternative solutions
• Competitive factory direct price

Contact our sales team for full technical datasheets and formal offer.

Q1: What do ZZ and C3 stand for?

ZZ = double-sided metal dust shield; C3 = greater internal clearance than CN standard.

Q2: Main dimensions of 6315 ZZ/C3?

75×160×37 mm deep groove ball bearing.

Q3: When to select C3 clearance?

Recommended for high speed, high temperature and interference fit installation.