60° Contact Angel 25TAC62BDBC10PN7B Angular Contact Bearing For Ball Screw

1. Product Overview

25TAC62BDBC10PN7B is high-precision single row thrust angular contact ball bearing specially designed for ball screw support, with 60° large contact angle structure, size 25mm inner bore × 62mm outer diameter × 15mm width.

Model suffix explanation:

• TAC: Thrust angular contact ball bearing for screw support; B: 60° contact angle internal structure; DB: Back-to-back paired configuration; C10: Standard preload; PN7B: P4 ultra-precision grade, low runout for high positioning accuracy.

Large 60° contact angle provides outstanding heavy axial load capacity and ultra-high rigidity, can bear combined radial and bidirectional axial loads. Adopts glass fiber reinforced PA66 nylon cage, GCr15 high-carbon chrome steel balls and rings, superfinishing raceway for low friction, high speed and long fatigue life. DB back-to-back paired design eliminates axial clearance, suppress positioning vibration. Widely used in CNC machine tools, automation precision machining centers, servo ball screw transmission, grinding equipment and high-precision testing machinery spindle support positions.

2. Technical Specifications

Complete dimension drawings, preload test data and precision inspection reports are available on request.

3. Key Advantages

1. 60° large contact angle structural design, superior axial stiffness and heavy thrust load capacity, minimal elastic deformation under high feed force for CNC equipment
2. DB factory pre-matched back-to-back paired assembly, consistent preload value, no manual shimming needed, simplify installation and ensure stable high-precision positioning
3. PN7B P4 ultra-precision tolerance control, ultra-low axial & radial runout, meet high-speed high-accuracy machining requirements
4. Mirror superfinished raceway surface reduces rolling friction and heat generation, lower operating noise and longer service life under continuous high-speed operation
5. Reinforced nylon cage evenly isolates steel balls, resistant to high temperature and deformation, stable circulation without abnormal vibration
6. Customizable options: DDG contact rubber seals, heavy light preload adjustment, stainless steel rings, OEM laser marking, high-temperature low-viscosity special grease filling

Effectively improve machine tool positioning repeatability and reduce ball screw transmission vibration failure rate

4. Applications

This 25TAC62BDBC10PN7B paired thrust angular contact bearing is widely applied for high-precision screw drive equipment:

• CNC vertical machining centers, milling machine X/Y/Z axis ball screw support assemblies
• Precision lathes, grinders, engraving machine servo ball screw fixed end bearings
• Automation high-speed positioning sliding tables, 3C precision processing equipment transmission units
• Medical precision testing instruments, optical detection equipment high rigidity rotary support parts
• Aftermarket replacement spare parts for 25mm bore P4 precision 60° screw support bearing

Ideal heavy-load high-rigidity paired bearing solution for all kinds of high-precision CNC ball screw transmission systems

5. Why Choose GQZ Bearing

• 25 years of professional TAC series screw support precision bearing manufacturing experience, 25TAC62BDBC10PN7B fully interchangeable with international standard screw bearings, consistent precision and preload performance
• Complete OEM & ODM customization service supporting seal addition, preload adjustment and laser marking
• Full-process strict inspection: raw material hardness test, raceway superfinishing precision detection, DB pair preload uniformity and high-speed cycle durability test before delivery
• Professional precision bearing engineering team provides screw housing tolerance and paired bearing installation preload guidance within 24 hours
• Stable mass production lines with preferential bulk wholesale price for long-term CNC machine tool manufacturers

We focus on consistent preload rigidity, ultra-low runout precision and long-term win-win cooperation with global precision equipment buyers

6. Quality Control

• Raw material chemical composition and surface hardness inspection of GCr15 chrome bearing steel
• Precision turning, heat treatment and raceway mirror superfinishing processing for inner and outer rings
• Constant temperature quenching & tempering process to stabilize internal stress and enhance contact fatigue resistance
• Special paired performance testing: DB back-to-back preload value screening, P4 grade runout precision inspection, high-speed temperature rise & noise test
• Steel ball sorting, cage assembly and paired grouping inspection, separate dimensional & appearance recheck before anti-rust packaging and shipment

Every batch of bearings passes full sampling high-speed reciprocating axial load durability test to guarantee stable high-precision operation on CNC ball screws

7. Get a Quote Now

If you need high rigidity P4 precision 25TAC62BDBC10PN7B DB paired 60° thrust angular contact bearings for CNC ball screw support, send your inquiry to us directly.

You will receive full professional supporting services after sending inquiry:

• Fast official factory quotation reply within 24 hours
• One-on-one screw housing tolerance & paired bearing preload installation parameter guidance by precision bearing engineers
• Customized bearing solution suggestions including DDG sealed variants and different preload grade options
• Competitive direct factory bulk wholesale price for large CNC equipment order quantities

Send your required purchase quantity and machine working environment to get detailed formal quotation

8. FAQ

1. Q1: What does DB C10 PN7B stand for in model suffix?
   A1: DB=back-to-back factory pre-matched pair; C10=standard preload; PN7B=P4 ultra-precision grade for high positioning accuracy.
2. Q2: Why adopt 60° large contact angle for screw support bearings?
   A2: 60° contact angle greatly improves axial rigidity and heavy thrust load capacity, effectively resist cutting axial force of machine tools.
3. Q3: What matching installation way fits this bearing?
   A3: It is pre-matched DB paired bearing, installed at the fixed end of ball screw to eliminate axial clearance and suppress positioning vibration.