7311-B-XL-TVP Single Row 40°Angular Contact Ball Bearing TVP Polyamide Cage 55x120x29mm Industrial Equipment

The 7311-B-XL-TVP single row angular contact ball bearing features 40° large contact angle, XL optimized internal geometry and lightweight TVP polyamide injection cage. It supports heavy one-way axial load plus radial load, ideal for high-speed pump, gearbox and machine tool spindle assemblies requiring high axial rigidity. 👉 Get a quote within 24 hours for your project

Model

7311-B-XL-TVP

Inner Diameter (d)

55mm

Outer Diameter (D)

120mm

Width (B)

29mm

Contact Angle

40° B type

Cage

TVP glass fiber reinforced polyamide cage

Design

XL optimized load structure

Material

High carbon chromium bearing steel

Seal Type

Open type

👉 Full technical data and drawings available upon request

• 40° big contact angle greatly improves unidirectional axial bearing rigidity
• XL upgraded internal structure enhances dynamic load rating and service life
• TVP polyamide cage low friction, light weight, stable running at high speed
• Precision ground raceway reduces vibration and running temperature rise
• Can be matched in DB/DF/DT arrangement for bidirectional axial load
• Custom clearance, precision grade and cage materials available
• 👉 Boost equipment rotation stability and lower long-term maintenance costs

• High-speed industrial pump and compressor rotary shafts
• Machine tool spindle and precision transmission gearboxes
• Automation high-speed drive and textile machinery spindles
• General equipment with large unidirectional axial thrust demand
• 👉 Perfect solution for customers pursuing high-rigidity high-speed bearing

• 25+ years experience in angular contact ball bearing manufacturing
• Exported to 50+ countries worldwide
• Rich OEM experience for special coded XL/TVP series bearings
• Strict tolerance, noise and load durability inspection before delivery
• Fast technical reply within 24 hours
• Stable mass supply for long-term machinery manufacturer cooperation
• 👉 We focus on stable quality and sustainable business partnership

• Raw bearing steel incoming inspection
• Ultra-precision superfinishing for balls and raceway
• Precision heat treatment hardness control
• Contact angle sorting, high-speed rotation noise testing
• Full dimension tolerance inspection before packaging
• 👉 Consistent reliable performance for every bearing unit

Get a Quote Now Looking for high speed angular contact bearing supplier?

 👉 Send your inquiry to get:

• Fast factory quotation within 24h
• Professional spindle bearing technical parameter support
• Custom matching arrangement & clearance solutions
• Competitive bulk factory price
• 👉 Click “Send Inquiry” to contact us

Q1: Can we order paired DB/DF/DT matched bearings?

Yes, matched pair assembly can be customized according to machine tool requirements.

Q2: What is lead time for standard 7300-B-XL-TVP series?

Standard stock models:7–15 working days

Custom special specifications depend on technical parameters

Q3: Do you accept large bulk orders for pump and gearbox factories?

Yes, continuous stable mass supply is supported for long-term industrial cooperation.