X-Life T7FC045-XL Single Row Tapered Roller Bearing T7FC 045/HN3QCL7C 45x95x29mm

1. Product Overview

1. Product Overview
T7FC045-XL and T7FC045/HN3QCL7C comply with ISO355 T7FC metric standard single row separable tapered roller bearing, unified mounting dimensions inner bore d=45mm, outer diameter D=95mm, total assembly width T=29mm, inner ring width B=26.5mm, outer ring width C=20mm, fitted with 30° large contact angle to bear strong one-way axial thrust load.
Two suffix variants adopt differentiated professional manufacturing processes for distinct working scenarios:

• XL: X-life premium long-life upgraded model, ultra-precision mirror superfinished raceway, strictly graded tapered rollers, optimized internal contact geometry and dedicated stress relief heat treatment, greatly boosting fatigue limit load, specially designed for 24h non-stop continuous heavy-load production equipment;
• HN3QCL7C: High precision high-temperature resistant premium grade, composite suffix technical definition:
  HN3 – Inner ring with special surface heat treatment for enhanced wear and high temperature resistance;
  Q – Logarithmic optimized roller contact curve to cut friction torque and vibration impact;
  CL7C – Gearbox dedicated high-performance precision design, ultra-low heat generation and quiet stable high-speed rotation.
  Full separable split construction: the integrated assembly of inner ring, tapered rollers and cage can be fully detached from outer ring, greatly simplifying shaft installation, disassembly and on-site maintenance. All rings and rolling elements are made of integral quenched GCr15 high-carbon chrome bearing steel, featuring high hardness, excellent wear resistance and impact resistance. Widely applied to heavy industrial gear reducers, construction machinery drive axles, metallurgical auxiliary transmission shafts, mining conveyor equipment and wind power auxiliary reduction boxes.

2. Technical Specifications

Unified General Base Parameters

Inner bore d: 45 mm
Outer diameter D: 95 mm
Inner ring width B: 26.5 mm
Outer ring width C: 20 mm
Total assembly width T: 29 mm
Contact angle: 30°
Structure: Single row separable tapered roller bearing, open non-seal design
Raw material: GCr15 bearing steel
Cage options: Stamped steel cage / solid brass cage
Standard clearance: CN normal clearance, C3 enlarged clearance customizable
Operating temperature: -30℃ ~ 130℃ (HN3QCL7C higher heat resistance)
Net weight: 0.92 kg
Minimum fillet radius r: 2.5 mm
Calculation coefficient: e=0.88, axial factor Y=0.68, static axial factor Y0=0.40

T7FC045-XL

Basic dynamic radial load Cr: 110 kN
Basic static radial load C0r: 112 kN
Fatigue limit load Cur: 17.0 kN
Grease limited speed: 8600 r/min
Continuous reference speed: 6100 r/min
Core feature: X-life anti-fatigue upgrade, extended service life for long-cycle uninterrupted heavy load equipment

T7FC045/HN3QCL7C

Basic dynamic radial load Cr: 89.7 kN
Basic static radial load C0r: 112 kN
Fatigue limit load Cur: 12.7 kN
Grease limited speed: 7000 r/min
Continuous reference speed: 4800 r/min
Core feature: HN3 inner ring heat treatment + Q optimized contact + CL7C high precision, high temperature resistant, low friction low noise stable rotation
Complete installation drawings, load characteristic curves and differentiated accelerated fatigue test reports can be provided upon customer request.

3. Key Advantages

1. Two fully interchangeable high-performance variants with identical installation outline sizes, customers select XL long-life version for non-stop heavy production lines or HN3QCL7C high-temperature high-precision version for high-speed gearbox transmission according to equipment operating conditions
2. 30° large contact angle tapered roller layout, excellent comprehensive bearing capacity to bear heavy combined radial load and unidirectional large axial thrust load, stable low-vibration operation under frequent forward and reverse impact loads
3. Fully separable split design, inner roller-cage assembly detached from outer ring, easy mounting and disassembly on heavy-duty shafts, effectively avoiding raceway scratch damage during maintenance
4. Exclusive targeted technical upgrades for two models: XL strengthens overall material anti-fatigue performance to cut frequent replacement costs; HN3QCL7C adds special inner ring heat treatment on the basis of Q+CL7C low-friction precision design, improving high temperature and abrasion resistance for harsh working conditions
5. Dual cage options: stamped steel cage cost-effective for general heavy load scenarios; solid brass cage anti-deformation for long-term high-temperature continuous operation
6. Customizable services: C3 enlarged radial clearance, P5 high precision grade, OEM laser marking, high-temperature anti-oxidation special grease filling
   Effectively extend overhaul cycles of heavy reducers, construction and metallurgical transmission equipment, reducing production downtime maintenance losses

4. Applications

This T7FC045 dual-model high-performance tapered roller bearing set is core replacement wear spare part for heavy industrial rotary equipment:
Heavy-duty industrial gear reducers, mining belt conveyor head transmission support assemblies
Small loader, road roller, excavator heavy drive axle positioning bearing units
Metallurgical rolling mill auxiliary transmission shafts, steel factory heavy transport roller spare parts
Small wind power auxiliary reduction boxes, port lifting machinery rotary positioning components
Light heavy agricultural harvesters, medium industrial mixer main drive system wearing parts
Aftermarket interchangeable 45mm bore high-performance single row tapered roller bearing
Cost-effective dual-grade heavy-load separable tapered bearing solution for long-cycle or high-temperature high-precision industrial equipment maintenance

5. Why Choose GQZ Bearing

25 years of professional manufacturing experience for T7FC series X-life and HN3QCL7C high-performance tapered roller bearings
T7FC045-XL and T7FC045/HN3QCL7C are fully dimensionally interchangeable with international standard T7FC series bearings, consistent outline size, load rating and assembly tolerance indicators
Complete OEM & ODM customization service supporting brass cage, C3 clearance upgrade, high precision grade and special high/low temperature lubricant customization
Full strict pre-delivery inspection: raw material hardness test, cone raceway grinding precision inspection, differentiated heavy load reciprocating fatigue cycle test, HN3 heat treatment layer thickness inspection
Professional tapered bearing engineering team provides shaft and housing tolerance matching installation guidance within 24 hours
Stable mass production lines with favorable bulk wholesale prices for long-term gearbox, construction and metallurgical machinery manufacturers
We focus on differentiated high-performance design, strong radial-axial combined load capacity, separable easy-maintenance structure and long-term win-win cooperation with global industrial equipment spare parts buyers

6. Quality Control

Raw material chemical composition and surface hardness inspection of GCr15 chrome bearing steel
Precision turning, quenching tempering and mirror superfinishing processing for inner and outer ring cone raceways
Differentiated targeted heat treatment process: XL version X-life stress relief strengthening process; HN3QCL7C exclusive HN3 inner ring special surface heat treatment + Q logarithmic contact grinding + CL7C precision surface optimization treatment
Classified targeted performance testing: T7FC045-XL long-cycle accelerated fatigue aging test; T7FC045/HN3QCL7C high-speed low friction torque temperature rise & high temperature durability test
Tapered roller sorting, steel/brass cage assembly, full dimensional and appearance recheck before anti-rust oil packaging and shipment
Each batch of T7FC045 series bearings passes full sampling heavy-load reciprocating rotation fatigue test to guarantee stable long-term operation inside heavy industrial transmission equipment

7. Get a Quote Now

If you need X-life long-life T7FC045-XL and high-temperature high-precision T7FC045/HN3QCL7C tapered roller bearings for heavy gearbox, construction and mining equipment maintenance, send your inquiry directly.
You will receive complete professional supporting services after submitting your inquiry:
Fast official factory quotation reply within 24 hours
One-on-one shaft & housing matching tolerance installation technical guidance from professional high-performance tapered bearing engineers
Customized bearing scheme suggestions including brass cage and C3 enlarged clearance upgrade options
Competitive direct factory bulk wholesale price for mixed two-model large spare parts bulk orders
Send your required purchase quantity of each model and equipment continuous speed & heavy-load & temperature working environment to obtain detailed formal quotation

8. FAQ

Q1: What is the core difference between T7FC045-XL and T7FC045/HN3QCL7C?
A1: Installation dimensions are completely consistent; T7FC045-XL is X-life overall anti-fatigue upgraded model with higher fatigue limit load, suitable for 24-hour uninterrupted normal temperature heavy load equipment; T7FC045/HN3QCL7C adds HN3 inner ring special heat treatment on QCL7C low-friction high-precision foundation, stronger high temperature and wear resistance, matched for high-speed, high-temperature precision heavy-duty gearboxes.
Q2: What loads can T7FC045 series bearings bear?
A2: It can bear heavy radial load plus unidirectional axial thrust load; bidirectional axial positioning requires two bearings installed back-to-back or face-to-face with reasonable preload.
Q3: What is the advantage of separable tapered roller bearing structure?
A3: The inner ring with roller and cage assembly can be separated from outer ring, convenient for assembly on heavy-duty shafts and avoids scratch damage to bearing raceways during installation and disassembly.