19BSW07 Non-Standard Auto Mini Deep Groove Ball Bearing

1. Product Overview

19BSW07 single-row non-standard thin-wall deep groove ball bearing, overall dimension 19mm inner bore × 32mm outer diameter × 7mm ultra-narrow width. Fully interchangeable with original NSK 19BSW07, dedicated for miniature control shafts inside Asian passenger car automatic/manual gearboxes. Available in open, ZZ shielded and 2RS sealed versions; standard stamped low-carbon steel cage, default C0 internal clearance, C3 clearance customizable on demand. It bears light radial load plus minor bidirectional axial load, ultra-quiet stable ultra-high-speed operation under high-temperature gear oil environment inside transmission housing. Produced with fully quenched GCr15 chrome bearing steel and micron tight dimensional tolerance, direct OEM plug-and-play replacement without housing or shaft modification. Complete formal quotation available within 24 hours upon inquiry.

2. Key Advantages

• Open version adopts through-hole design for full gear oil circulation, excellent continuous heat dissipation, no rubber seal aging, swelling or oil leakage risks
• Superfinished smooth raceway reduces rolling friction torque, low heat accumulation under long continuous high-speed rotation
• Integrated thin-wall high-hardness inner/outer rings provide outstanding wear resistance and anti-fatigue performance, extend gearbox overall service life
• Compact unified OEM mounting dimensions, no structural modification required during replacement of micro control shafts
• Ultra-light stamped steel cage minimizes rotation inertia, perfectly matches long-term steady ultra-high-speed working of miniature transmission control components
• P0 standard precision, P6/P5 upgraded precision and C3 clearance can be customized to meet various OEM assembly matching requirements
• Stable mass production with sufficient spot stock, high cost performance for aftermarket repair and bulk OEM supporting orders

3. Applications

Asian passenger car gearbox miniature hydraulic control valve shafts, transmission auxiliary micro rotating shafts, light commercial vehicle precision tiny reducers, small agricultural machinery high-speed fine transmission parts.

4. Technical Specifications

Model: 19BSW07 Non-Standard Thin-Wall Deep Groove Ball Bearing
Size: d19 × D32 × B7 mm
Seal Options: Open / ZZ metal shield / 2RS rubber seal
Cage: Stamped low carbon steel cage
Internal Clearance: C0 standard, C3 optional
Material: GCr15 chrome bearing steel
Basic Dynamic Load: 12.6 kN
Basic Static Load: 7.2 kN
Max Oil Lubrication Speed: 6300 r/min
Net Weight: 0.042 kg
Working Temperature: -20℃ ~ +130℃
Precision Grade: P0 standard, P6/P5 customizable
Cross Reference: 19BSW07, NSK 19BSW07, 19BSW07A
Dimension drawings and complete technical spec sheets can be provided on request.

5. Why Choose GQZ Bearing

25+ years professional manufacturer of non-standard auto gearbox miniature bearings. All finished bearings pass high-speed continuous rotation test, vibration noise test and long-cycle fatigue durability test before delivery. Custom anti-rust coating and high-temperature anti-wear gear grease filling service supported. One-on-one professional transmission installation guidance and fast formal quotation for all RFQs. Stable bulk supply capacity, factory direct sales price, consistent stable quality and punctual batch delivery.

6. Quality Assurance

• Raw GCr15 steel hardness & chemical composition incoming inspection
• Deep groove raceway superfinishing roughness detection
• High-temperature gear oil circulation aging durability test
• Low noise vibration fatigue rotation cycle test
• Full dimension tolerance sorting inspection
• 100% visual appearance marking check before packaging
• Random high-speed performance sampling test before shipment
• All 19BSW07 bearings go through multi-step strict factory inspection.

7. CTA

Inquire bulk 19BSW07 miniature gearbox deep groove bearings to get full support:

1. Complete formal detailed quotation within 24 hours
2. Standard dimension drawings & micro shaft press-fit installation operation guide
3. Custom anti-rust surface treatment & dedicated high-temperature gear lubricant filling service
4. Exclusive long-term factory wholesale price without intermediate markup

Large-volume OEM cooperation is warmly welcomed.

8. FAQ

Q1: Difference between open, ZZ and 2RS versions of 19BSW07?
A1: Open for internal gearbox oil lubrication; ZZ metal shield for light dust internal assembly; 2RS double rubber seal for external exposed shafts against dust and water, pre-filled grease.
Q2: Can 19BSW07 directly replace original NSK bearing?
A2: Yes, all mounting dimensions and internal structure fully consistent, no modification to gearbox parts needed during assembly.
Q3: Suitable lubrication mode?
A3: Open type designed for gearbox circulating oil lubrication; sealed versions adopt long-life anti-wear gear grease for maintenance-free operation.