R12VV Inch Deep Groove Ball Bearing 19.05x41.275x11.113mm Double Non-Contact VV Rubber Seals

1. Product Overview

R12VV is single row inch standard deep groove ball bearing, imperial dimension 3/4" (19.05mm) inner bore × 1-5/8" (41.275mm) outer diameter × 7/16" (11.113mm) width.
Model suffix explanation:

• R: Inch series radial deep groove ball bearing without filling notch
• VV: Double-sided non-contact light rubber seal, tiny rotational resistance, block dry dust and fine powder without sacrificing high-speed performance, maintenance-free pre-filled long-life grease

Adopts high purity 52100 chrome bearing steel for inner ring, outer ring and steel balls, lightweight stamped steel riveted cage to evenly separate rolling elements. Classic deep raceway design can bear radial load and moderate bidirectional axial load simultaneously, stable low-noise high-speed operation. Widely matched with inch standard solid shafts for miniature drive motors, medical testing instruments, office automation equipment, textile small spinning machinery, precision encoder rotating components and light-duty automation sliding assemblies.

2. Technical Specifications

3. Core Advantages

1. Double-sided VV non-contact sealing structure, ultra-low rotation drag loss, retain factory pre-filled anti-wear grease long-term, effectively isolate dry workshop dust and fine plastic powder, not affected by high-speed centrifugal force.
2. Standard inch size interchangeable design, fully match global R12VV inch series bearing installation standards, direct replacement without modifying inch shaft and equipment housing structure.
3. High purity quenched 52100 chrome steel rolling components, uniform metallographic structure, excellent wear resistance and fatigue resistance, extend service life under continuous light cyclic vibration load.
4. Ultra-precision superfinishing grinding inner and outer raceways and steel ball surfaces, ultra-smooth contact surface, low vibration and quiet running performance for precision miniature equipment.
5. Lightweight stamped steel riveted cage, evenly distribute steel ball stress, reduce collision noise during high-speed reciprocating rotation, compact overall size save miniature equipment internal installation space.
6. No filling notch internal structure, stable rotation accuracy, no steel ball deviation under long-time high-speed operation, suitable for precision instrument transmission requiring low runout.
7. Medium C0 standard internal clearance, balance thermal expansion and assembly tightness, adapt to most miniature motor and automation equipment normal temperature working conditions.
8. Rich customizable options: P6/P5 high precision grade, C3 enlarged clearance group, open type / ZZ metal shield variant, stainless steel raw material upgrade, OEM laser marking, neutral export anti-rust carton packaging, food-grade white grease filling.

4. Application Scenarios

R12VV double VV sealed inch deep groove ball bearing is compact high-speed light-load rotary spare part matched with 19.05mm inch solid shaft precision equipment:

• Small AC/DC miniature drive motor rotor support bearing assemblies
• Medical laboratory testing equipment, dental equipment precision rotating parts
• Printer, copier, labeler office automation sliding transmission units
• Textile miniature spinning spindle, yarn winding small roller supporting positions
• Optical encoder, sensor miniature rotary positioning components
• Light-duty automated conveyor, small robotic arm joint sliding parts

Aftermarket interchangeable R series inch standard deep groove ball bearing
Low torque high-speed inch bearing solution for miniature motor manufacturers, medical equipment OEM factories and precision automation bulk maintenance procurement.

5. Why Choose GQZ Bearing

We have 25 years of mature professional manufacturing experience for R series inch sealed deep groove ball bearings including R12VV double VV non-contact seal models.
Our R12VV bearings adopt unified international inch standard dimensions, consistent dynamic/static load parameters, steel heat treatment and VV sealing assembly tolerance standards, fully dimensionally interchangeable with global standard inch miniature bearings.
Complete OEM & ODM customized service system, supporting multi-precision grades, different clearance groups, open/shield structure transformation and special temperature-resistant lubricant filling personalized requirements.
Strict pre-delivery full quality inspection flow: 52100 steel raw material composition and hardness test, steel ball automatic sorting screening, long-cycle high-speed temperature rise rotation aging test, VV sealing tightness full batch inspection.
Professional inch miniature bearing technical team provides one-to-one radial-axial combined load calculation, inch shaft-housing fit tolerance guidance and high-speed assembly maintenance tips within 24 working hours.
Standardized miniature bearing precision production workshop provides competitive factory direct bulk wholesale price, stable long-term mass supply for global miniature motor, medical and precision automation machinery spare parts purchasers.
We specialize in VV sealed inch standard deep groove ball bearings, strict raceway super grinding precision control and interchangeable inch dimension standards, committed to long-term stable win-win cooperation with high-speed miniature precision transmission equipment suppliers.

6. Quality Control

Raw material chemical composition, hardness and fatigue resistance inspection for 52100 chrome steel inner/outer ring and steel ball blanks
Precision turning forming processing, multiple stress relief tempering cycles, ultra-precision superfinishing grinding for inch deep groove raceway surfaces
Steel ball high temperature overall quenching, mirror polishing and high precision automatic sorting production line
Low carbon steel cage stamping and riveting forming process, double VV rubber seal pressing assembly, anti-wear grease quantitative filling procedure
Targeted professional performance testing: R12VV long cycle ultra-high speed temperature rise rotation aging test, dust shielding durability simulation test, radial runout precision detection
Comprehensive re-inspection of overall dimensional tolerance, bore roundness and sealing tightness before anti-rust oil coating and export moisture-proof carton packaging.
Each production batch of R12VV bearings undergoes miniature motor high-speed cycle rotation simulation test to guarantee stable low-friction low-noise rotary support performance for 19.05mm inch shaft precision miniature transmission systems.

7. Get A Quote Now

If you need R12VV 19.05x41.275x11.113mm double VV non-contact sealed inch deep groove ball bearings for miniature motor / medical automation manufacturing, precision equipment assembly and light industry maintenance bulk matching, send your purchase demand directly.
Complete professional one-stop supporting services after sending inquiry:

• Formal official detailed quotation reply within 24 working hours
• One-to-one radial and bidirectional axial combined load calculation, inch shaft fit tolerance and high-speed assembly technical support provided by professional inch bearing engineers
• Customized bearing performance upgrade options including C3 enlarged clearance group and P5 high precision grade transformation
• Favorable factory direct bulk wholesale price for large quantity single model orders of R12VV

Please provide purchase quantity, actual working conditions (ultra high speed / clean dry workshop / light dust environment) to obtain complete official quotation documents.

8. FAQ