Products Description
Pillow Block Bearings
A pillow block bearing, also known as a pillow bearing, bearing block, or block bearing, is a mounted housing designed to support rotating shafts with accuracy and reliability. By accommodating ball bearings or customized bearing units, pillow blocks ensure smooth rotation, proper load distribution, and extended equipment life across industrial transmission systems.
Precision Alignment
stable shaft positioning with reduced vibration
Maintenance Efficiency
split housing minimizes downtime
Material Strength
4140 steel resists fatigue and deformation
Custom Capability
supports custom bearings and non-standard shafts
Split Pillow Block Bearing Housing Design
Our steel pillow block bearings are manufactured from high-strength 4140 alloy steel and CNC machined for dimensional accuracy. The split housing design allows easy installation, inspection, and replacement, especially suitable for shaft repair and heavy-duty transmission systems.
Each assembly includes:
Housing Upper
upper load-bearing structure
Housing Lower
rigid base for mounting
Bushing Half
precision bearing interface
Retainer
stabilizes bearing position
Technical Specifications | Pillow Block Bearing Data Sheet
| Material | AISI 4140 Alloy Steel |
| Manufacturing | CNC Precision Machining |
| Housing Type | Split Pillow Block |
| Bearing Type | Ball Bearings / Custom Bearings |
| Shaft Diameter | Customized (Typical Ø50–300 mm) |
| Machining Tolerance | ±0.02 mm (critical areas) |
| Hardness | BHN as specified |
| Application Speed | Standard & High-Speed Pillow Block Bearings |
Quality Control
Industrial Pillow Block Bearing Inspection System
Quality assurance is fundamental to the performance of pillow block bearings, especially in load-bearing and continuous-operation environments. ZM INDUSTRY CO., LTD. implements a structured quality control system covering material verification, machining accuracy, and non-destructive testing, ensuring each bearing block meets international industrial requirements before delivery.
Material Certification
Chemical analysis confirms alloy composition of 4140 steel. Mechanical test reports verify tensile strength and yield performance. BHN hardness reports ensure suitability for load-bearing applications.
Dimensional Inspection
All machined parts undergo full dimensional measurement after CNC processing. Dimensional reports confirm shaft fit accuracy, bearing seat geometry, and housing alignment for custom made bearings.
MPI / Dye Penetrant Testing
Magnetic Particle Inspection and Dye Penetrant Testing are performed on all components, including housings, bushings, and retainers, to detect surface and subsurface defects.
Documentation & Traceability
Each pillow block bearing set can be supplied with complete inspection documentation, supporting customer audits, export clearance, and long-term quality traceability.
Our Certificate
Applications
Pillow Block Bearing Use Cases
Mining Equipment
Pillow block bearings support conveyor and auxiliary shafts in mining equipment, maintaining alignment under heavy loads and harsh environments.
01
Conveyor Systems
Used in belt and roller conveyors, pillow blocks ensure continuous, low-vibration shaft rotation with easy bearing replacement.
02
Shaft Repair
Combined with shaft repair kits, pillow block bearings provide a cost-effective solution for worn shaft refurbishment.
03
Transmission Systems
In gear-driven assemblies, pillow block bearings support pinion and intermediate shafts, ensuring smooth power transmission.
04
Packaging & Protection
Export Packing for Pillow Block Bearings
Each pillow block bearing is protected with anti-rust treatment and packed in non-fumigation wooden crates designed for international shipping. Internal supports are customized to prevent movement, impact, and deformation. Packaging solutions can be tailored to destination and customer requirements, ensuring safe delivery and installation readiness.
Anti-rust Protection
Non-fumigation Crates
Export
Standard
Shipping & Delivery
ZM INDUSTRY CO., LTD. selects shipping methods based on product size, weight, and customer cost considerations. With experienced freight partners, we optimize loading plans, reduce handling risks, and ensure smooth customs clearance through complete export documentation.
Inquiry
Looking for pillow block bearings, custom bearing housings, or reliable shaft support solutions?
Contact ZM INDUSTRY CO., LTD. now to receive fast quotations, technical consultation, and professional support for your project.
Our address
Head Office: 4#-1616, No.296 Liuquan Road, Zibo City, Shandong China
Branch Office: 208-7B, No.2 Penglai Road, Jianxi District, Luoyang City, Henan Province,China
Phone Number
+8618606381772
sun@zmindu.cn
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