BT1-0132/QCL7C Single Row Tapered Roller Bearing 70x165x57mm QCL7C Cage Automotive Differential Bearing

1. Product Overview

BT1-0132/QCL7C is single row separable tapered roller bearing, standard dimension 70×165×57mm, QCL7C refers to optimized stamped steel cage structure for stable roller guidance. Conical raceway and tapered roller design simultaneously bear heavy radial and one-way axial combined loads. Separable cone & cup structure simplifies installation, disassembly and maintenance. Open design supports supplementary relubrication, excellent impact resistance and fatigue performance under heavy alternating load. Widely used for heavy truck differential, vehicle transmission axle, construction machinery reducer, mining heavy conveyor and agricultural large tillage equipment transmission parts.

2. Technical Specifications

Model: BT1-0132/QCL7C
d:70mm, D:165mm, T:57mm
Min fillet r:3.5mm
Dynamic load Cr:186kN, Static load C0r:242kN
Grease limiting speed:3600r/min
Net weight:6.35kg
Structure: Single row tapered roller, separable cone & cup, open type
Cage: QCL7C high-strength stamped steel cage
Material: Vacuum smelting GCr15 bearing steel, hardness HRC60-65
Clearance: Standard CN, C3 customizable
Precision: P0 standard, P6/P5 optional
Operating temperature: -40℃ ~ 120℃
Dimension drawings and durability test reports available on request.

3. Core Advantages

• Complete BT1-0132/QCL7C matched assembly, QCL7C cage evenly distributes rollers to reduce friction and vibration
• Tapered roller structure withstands heavy radial + unidirectional axial combined load for heavy-duty vehicle transmission
• Separable inner cone and outer cup, convenient independent mounting and on-site maintenance replacement
• Optimized logarithmic roller profile reduces edge stress, extends service life under frequent impact load
• Open end design allows regular grease filling to flush internal metal debris and prolong bearing cycle
• Standard 70×165×57mm interchangeable size, cross replacement for mainstream heavy truck differential spare parts
• Custom C3 loose clearance, high-temperature anti-pressure gear grease and batch laser marking available

4. Application Scenarios

• Commercial vehicle: Heavy truck front/rear differential, drive axle transmission, bus gearbox intermediate shafts
• Construction machinery: Excavator auxiliary reducer, loader heavy transmission assembly, road roller spindle supports
• Mining & conveying: Mine heavy belt conveyor roller shafts, stone crusher low-speed heavy load positions
• Large agricultural machinery: Heavy-duty disc harrow main transmission, large tractor differential parts

Fit OEM assembly and aftermarket replacement of heavy-load vehicle and engineering transmission equipment.

5. Why Choose GQZ Bearing

25 years professional production of BT1 series QCL7C cage tapered roller bearings. High-purity vacuum smelting GCr15 steel with complete quenching and tempering heat treatment, outstanding anti-fatigue performance under long-term heavy alternating impact load. Full OEM & ODM customization for clearance grade, cage structure and heavy-load special lubricant. Strict full-process inspection includes raw material hardness test, ultra-precision tapered raceway superfinishing, roller sorting and heavy-load alternating impact aging test. 24-hour professional technical support for differential shaft layout design and periodic relubrication maintenance plans. Factory direct bulk price, abundant heavy-duty tapered roller bearing spot stock for global commercial vehicle and engineering machinery manufacturers.

6. Quality Control

1. Raw material chemical composition and hardness inspection
2. Integral quenching and stress relief tempering to eliminate internal residual stress
3. CNC ultra-precision inner and outer ring tapered raceway mirror grinding
4. High-precision tapered roller screening and QCL7C stamped steel cage stamping forming
5. Dust-free assembly with high-pressure anti-wear heavy-duty mechanical grease pre-filling
6. Continuous rotation aging and heavy combined radial-axial load durability cycle testing
7. Full dimension inspection, anti-rust oil coating, neutral moisture-proof export carton packaging

Each batch completes temperature rise and vibration test to guarantee stable long-time heavy-load operation for truck differential and engineering equipment.

7. Get A Quote

Send inquiries for BT1-0132/QCL7C tapered roller bearings used on heavy truck differential, construction machinery reducers and mining conveyors.
Services after inquiry:

1. Standard quotation delivered within 24 working hours
2. Technical guidance for differential shaft fit tolerance and lubrication cycle arrangement
3. Upgrade options: P5 high precision grade, C3 loose clearance, high-temperature anti-oxidation heavy-duty synthetic grease
4. Competitive factory bulk unit price for large quantity orders

Please state order quantity, working combined load, rotating speed and working environment for complete quotation documents.

8. FAQ