SC2522622M Non-Standard Auto Gearbox Brass Cage Deep Groove Bearing

1. Product Overview

SC2522622M single-row non-standard thin-wall deep groove ball bearing. The suffix M refers to solid machined brass cage, which boasts better rigidity, heat resistance and anti-deformation performance than regular stamped steel cages under high-temperature gear oil working environment. It is fully interchangeable with NSK SC2522622M, specially developed for miniature hydraulic valve control shafts inside Asian passenger car automatic transmissions.

Three seal types for selection: Open, ZZ metal shield, 2RS double rubber seal. Solid brass cage is standard configuration, stamped steel cage can be customized as requested; C0 clearance is default, C3 clearance optional. The bearing bears light radial load and slight two-way axial load, running stably and silently under long-time continuous high-speed rotation and high-temperature circulating gear oil inside transmission housing. Produced with fully quenched high-purity GCr15 chrome bearing steel and micron-level precise dimensional tolerance, it supports direct OEM plug-and-play replacement without modifying gearbox housing or micro shafts. Complete formal quotation will be provided within 24 hours upon your inquiry.

2. Key Advantages

• Open through-hole design enables full circulation of gearbox oil for continuous efficient heat dissipation, eliminating hidden failures such as rubber seal aging, expansion and oil leakage
• Super-finished smooth raceway reduces friction torque and heat accumulation during long-term variable high-speed operation
• Solid brass cage (suffix M) features excellent thermal stability and deformation resistance, avoiding cage cracking under sustained high oil temperature and alternating torque impact
• High-hardness integrated inner and outer rings deliver superior wear resistance and anti-fatigue performance, extending the overall service life of gearboxes
• Unified OEM installation dimensions, no structural modification required when replacing miniature control shafts
• Compact brass cage structure maintains stable rotation inertia, perfectly matching long-term steady high-speed operation of transmission hydraulic components
• Standard P0 precision grade, P6 upgraded precision and C3 clearance available for customization; stable mass production and sufficient spot stock, high cost performance for aftermarket maintenance and bulk OEM supporting orders

3. Applications

Hydraulic control valve micro shafts of Asian passenger car automatic transmissions, auxiliary miniature rotating shafts for transmissions, precision tiny reducers of light commercial vehicles, high-speed fine transmission moving parts of small agricultural machinery operating under high temperature conditions.

4. Technical Specifications

Dimension drawings and complete technical spec sheets can be offered on demand.

5. Why Choose GQZ Bearing

We are a professional manufacturer with over 25 years of experience in SC series non-standard precision miniature bearings for auto transmissions. All finished bearings pass high-speed rotation test, low-noise vibration test and long-cycle high-temperature durability aging test before delivery. Custom anti-rust surface coating and high-temperature anti-wear gear grease filling services are available. We provide one-on-one professional technical guidance for gearbox installation and fast formal quotation for all purchase requests. Stable mass production capacity supports long-term large aftermarket and OEM orders, factory direct sales price, consistent stable quality and punctual batch delivery.

6. Quality Assurance

• Raw GCr15 steel hardness and chemical composition incoming inspection
• Deep groove raceway superfinishing roughness detection
• Long-cycle high-temperature gear oil circulation aging durability test (special thermal stability inspection for brass cage)
• Low-noise vibration fatigue rotation cycle test
• Full dimensional tolerance sorting inspection
• 100% visual appearance and marking check before packaging
• Random sampling high-speed & high-temperature performance test before shipment

All SC2522622M bearings go through multi-process strict factory inspection.

7. CTA

Send bulk inquiry for SC2522622M high-temperature miniature bearings with brass cage and get full supports as below:

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

Large-volume OEM cooperation is sincerely welcomed.

8. FAQ

Q1: What does suffix M of SC2522622M stand for?
A1: M means solid machined brass cage. Compared with ordinary stamped steel cage, it has outstanding heat resistance, structural rigidity and anti-fracture performance, suitable for gearbox high-temperature working conditions.

Q2: What are the differences among Open, ZZ and 2RS versions?
A2: Open type is installed inside gearbox for circulating gear oil lubrication; ZZ metal shield is for semi-sealed internal assembly with slight dust; 2RS double rubber seal is used for exposed external shafts, dustproof and waterproof, pre-filled with long-life anti-wear grease.

Q3: Can SC2522622M directly replace original NSK bearing?
A3: Yes, all mounting dimensions, internal structure and brass cage matching size are completely consistent, no modification to gearbox parts needed during assembly.