7309-B-XL-JP-UA Single Row 40° Angular Contact Ball Bearing JP Steel Cage UA Special Clearance 45x100x25mm Transmission Equipment

The 7309-B-XL-JP-UA single row angular contact ball bearing features 40° large contact angle, XL optimized internal geometry, JP stamped steel cage and UA special matched clearance. It delivers outstanding unidirectional axial rigidity and heavy combined radial-axial load capacity, suitable for high-speed gearboxes, industrial pumps and precision transmission units with strict clearance matching requirements.

👉 Get a quote within 24 hours for your project

👉 Full technical data, clearance matching drawings available upon request

• 40° big contact angle greatly improves unidirectional axial bearing stiffness
• XL optimized internal structure increases dynamic load rating and service life
• JP stamped steel cage stable, low noise and durable under high-speed continuous operation
• UA factory pre-matched special clearance eliminates extra adjustment during assembly
• Precision superfinished raceway reduces friction and heat rise at high rotating speed
• Can be combined as DB/DF/DT matched pairs for bidirectional axial load working conditions
• Custom precision grade, clearance group and surface anti-rust treatment supported

👉 Simplify assembly process and boost long-term running stability of precision equipment

• This angular contact bearing widely applies to: High-speed industrial gearbox and compressor transmission shafts
• Hydraulic pump, vacuum pump and high-speed rotating machinery
• General precision transmission equipment requiring strict pre-set clearance
• Machine tool auxiliary spindle and medium heavy load rotary assemblies

👉 Ideal high-rigidity pre-clearance matched bearing for high-speed transmission devices

• 25+ years experience in special coded angular contact ball bearing production
• Exported to 50+ countries worldwide
• Rich OEM customization experience for XL/JP/UA special marking bearings
• Strict clearance sorting, noise and high-speed durability inspection before delivery
• Fast professional technical reply within 24 hours
• Stable mass supply for long-term gearbox and pump manufacturer cooperation

👉 We focus on stable quality and sustainable long-term business partnership

• Raw high chromium bearing steel incoming inspection
• Ultra-precision superfinishing for steel balls and internal/external raceway
• Precision heat treatment for uniform hardness control
• UA special clearance grouping, high-speed rotation noise testing
• Full dimensional tolerance inspection before packaging shipment

👉 Consistent reliable high-speed performance for every bearing unit

Looking for pre-matched UA clearance angular contact bearing supplier?

👉 Send your inquiry to get:

• Fast factory quotation within 24h
• Professional transmission bearing technical parameter support
• Custom DB/DF/DT matched pair & clearance solution suggestions
• Competitive bulk factory wholesale price