7326B Single Row Angular Contact Ball Bearing, 40° Contact Angle, Heavy Radial & Axial Load Bearing

7326B, old designation 66326, is single row open-type angular contact ball bearing with standard 40° large contact angle. It can simultaneously withstand composite radial load and one-way unilateral axial load; paired installation (DB/DF/DT) enables bidirectional axial load bearing. Adopts solid machined brass cage to evenly guide steel balls, reduce friction heat and improve high-speed stability. Precision super-finished raceway and steel balls lower running noise and vibration. Widely matched with heavy-duty gear reducers, metallurgical rolling equipment, mining transmission devices, large machine tool spindles, fan and pump main shafts.

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1. 40° large contact angle design, far stronger unilateral axial bearing capacity than 15° C-type and 25° AC-type bearings, ideal for heavy axial force working conditions.
2. Solid brass machined cage features high rigidity, high temperature resistance and impact resistance, not easy to deform under long-hour continuous operation.
3. Ultra-precision grinding inner/outer raceways and steel balls, small friction coefficient, stable high-speed rotation, low temperature rise.
4. Can be installed in DB back-to-back, DF face-to-face, DT tandem matching combinations to meet bidirectional or super heavy axial load demands.
5. Whole set GCr15 bearing steel quenching treatment, uniform hardness, excellent wear resistance and contact fatigue performance.
6. Standard universal mounting dimension, fully interchangeable with all mainstream brand 7326B / 66326 bearings without equipment modification.

Reduce shaft axial displacement and improve heavy equipment long-term stable operation

• Heavy industrial gearboxes, metallurgical rolling mill transmission assemblies
• Mining crusher main shafts, large belt conveyor drive ends
• High-power industrial fans, water pumps, blowers
• Large CNC machine tool heavy-duty spindles, printing press transmission parts
• Construction machinery reducers, petroleum drilling auxiliary transmission equipment

Dimension drawings and technical data sheets can be provided upon request

• 25+ years professional manufacturing of large-size angular contact ball bearings
• Mass supply for metallurgy, mining, machine tool and heavy reducer industrial clients
• Customizable precision grade, cage material, preload and matched bearing sets
• Full pre-delivery inspection including hardness, noise, load and high-speed aging test
• Professional technical support and formal quotation issued within 24 hours for all RFQs
• Stable mass production capacity to fulfill long-term bulk order demands

We supply consistent stable quality, punctual delivery and long-term win-win cooperation with global industrial buyers

• Raw bearing steel chemical composition and hardness inspection
• Raceway & steel ball super-finish surface roughness detection
• Dynamic & static load fatigue durability test
• High-speed continuous rotation temperature rise aging test
• Brass cage tensile strength and impact resistance test
• Full dimension sorting and 100% visual appearance inspection before packaging

Every bearing passes multi-process strict quality testing before shipment

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Looking for factory direct supply of 7326B (66326) 40° angular contact ball bearings for heavy industry equipment?

Send your inquiry to obtain:

• Detailed formal quotation within 24 hours
• One-on-one professional heavy machinery bearing technical support
• Custom precision, cage, preload and anti-rust treatment schemes
• Direct factory price without intermediate markup

Q1: What’s the difference between 7326B, 7326AC and 7326C?

7326C 15° small contact angle, high speed, weak axial capacity; 7326AC 25° medium contact angle balanced load & speed; 7326B 40° large contact angle, strongest unilateral axial bearing capacity, priority for heavy axial load conditions.

Q2: Can single 7326B bear bidirectional axial force?

Single unit only bears one-way axial load; adopt DB/DF paired mounting to withstand bidirectional axial load.

Q3: Is 7326B fully interchangeable with other brand same model?

Yes, 130×280×58 standard metric dimension, universal interchange without changing shaft and housing structure.