GQZ 6011-2Z/C3 Single Row Deep Groove Ball Bearing 55×90×18mm Double Metal Shield C3 Radial Clearance

6011-2Z/C3 is standard single row deep groove ball bearing.

• 2Z: Double-sided non-contact metal dust shields, preventing large dust particles and retaining internal grease.
• C3: Increased radial internal clearance, designed for high-speed operation to compensate shaft thermal expansion.

It supports radial load and light bidirectional axial load. Deep raceway design ensures low vibration and stable rotation. Pre-lubricated shielded structure reduces regular maintenance.

Available variants: open type 6011, rubber sealed 6011-2RS1, CN normal clearance version. Widely used for industrial motors, cooling fans, small compressors, agricultural machinery and general automation rotary assemblies.

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

Model

6011-2Z/C3

Dimensions

d55 mm, D90 mm, B18 mm

Minimum chamfer r

1.1 mm

Net weight

approx 0.38 kg

Structure

Single row deep groove ball bearing

Material

GCr15 bearing steel, pressed steel cage

Sealing

Double-sided non-contact metal shield

Clearance

C3 increased radial clearance

Basic dynamic load Cr

29600 N

Basic static load C0r

21200 N

Limiting speed (grease)

8500 rpm

Complete dimension drawings and load data available on request.

1. C3 larger internal clearance adapts temperature rise and thermal expansion during high-speed operation
2. Double-sided metal shields block dust and debris, effectively avoid grease leakage
3. Deep raceway structure runs steadily under combined radial load and slight axial loads
4. Low friction torque, low noise and low vibration for continuous medium & high-speed rotation
5. Standard metric dimension, fully interchangeable with international mainstream brands
6. Customizable: P6 precision grade, nylon cage, OEM laser marking, high-temperature resistant grease

• Industrial three-phase motors, large cooling fans and blower assemblies
• Small air compressors, hydraulic pumps and fluid power equipment
• Agricultural machinery, garden equipment and light-duty transport machinery
• Packaging automation and medium-speed rotary transmission mechanisms
• Rotary equipment running continuously with obvious temperature rise

• 25 years professional bearing manufacturer, products exported globally.
• Precision superfinishing for raceways and steel balls with strict noise and clearance testing.
• Standard shield assembly and quantitative grease filling process.
• 24-hour technical support for clearance selection and installation guidance.
• Ample stock for machinery distributors.
• Precise dimensions and stable service performance.

• GCr15 raw material quenching & tempering hardness inspection
• Precision grinding for inner and outer raceway surfaces
• Internal clearance grouping, rotational smoothness and noise inspection
• Dimensional tolerance and surface appearance defect inspection

If you need 6011-2Z/C3 deep groove ball bearings:

Send inquiry to obtain below supports:

• Quick quotation within 24 hours
• Open type / 2RS rubber seal variant consultation
• Optional CN normal clearance technical solution
• Competitive factory direct price

Contact our sales team for full datasheets and formal offer.

Q1: Suffix explanation

2Z = double-sided non-contact metal dust shield; C3 = increased radial internal clearance.

Q2: Main dimensions of 6011-2Z/C3?

55×90×18 mm single row deep groove ball bearing.

Q3: Usage reminder

Metal shields cannot resist water mist and fine powder; select rubber sealed version for humid environments.