6814ZZCM NS7S5 Thin Wall Single Row Deep Groove Ball Bearing CM Motor Clearance NS7 Grease 70x90x10mm Servo Motor Equipment

The 6814ZZCM NS7S5 is ultra-thin wall single row deep groove ball bearing with double ZZ metal dust shields, CM motor controlled clearance and pre-filled NS7 low-temperature long-life grease, standard dimension 70×90×10mm. CM special clearance eliminates motor resonant vibration; double non-contact steel shields block fine dust without sacrificing high rotation speed. NS7 lubricant works stably from -40℃ to 130℃, maintains low friction and quiet running, widely used in servo motors, high-speed spindles, automation rotary shafts, fan equipment and precision light industrial transmission assemblies.

• Ultra-thin wall 68 series compact design saves radial installation space for medium-size motor housings
• CM motor special clearance: moderate internal play, effectively suppress motor vibration & running noise
• Double ZZ non-contact metal shields: tiny rotational torque, excellent dust-proof performance for clean workshop
• NS7 wide temperature grease: stable lubrication under cold start and continuous high-temperature operation, long service cycle without refilling
• Superfinished raceway & steel balls deliver ultra-low noise, smooth stable high-speed rotation
• Multiple interchangeable variants: open 6814, splash-proof 6814-2RS, standard C0/C3 clearance customized
• ABEC-1 / ABEC-3 precision grades available for high-precision servo spindle equipment

• This CM clearance NS7 greased thin wall bearing is widely matched to:
• AC/DC servo motors, high-speed fan rotors and industrial spindle support assemblies
• Automation equipment miniature linear guide rollers and medium-size positioning rotary shafts
• Textile high-speed spinning equipment, packaging precision transmission components
• Laboratory precision testing instruments, cold storage low-temperature rotary machinery

• 25+ years experience in 6800 series thin-wall deep groove ball bearing manufacturing
• Exported to 50+ countries worldwide
• Rich OEM bulk order experience for CM motor clearance special grease thin-wall bearings
• Strict clearance grouping, grease filling consistency and high-speed noise inspection before shipment
• Fast professional technical reply within 24 hours
• Stable mass supply for long-term servo motor and automation equipment factory cooperation

• GCr15 bearing steel raw material incoming hardness inspection
• Ultra-precision grinding for inner & outer raceway and steel balls
• Standard quenching & tempering heat treatment for uniform surface hardness
• CM clearance sorting, NS7 standard volume grease filling, ZZ dust shield tightness test
• Full dimensional recheck, anti-rust treatment and independent plastic box packaging

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Looking for CM motor clearance NS7 long life grease double ZZ thin wall 6814 deep groove ball bearing supplier?

• Fast factory quotation within 24h
• Professional servo motor thin wall bearing technical parameter support
• Custom open type / rubber seal & C3 clearance solution suggestions
• Competitive bulk wholesale factory price