GQZ SB75A Metric Radial Spherical Plain Bearing 75×120×64mm Grease Fitted Steel-on-Steel Bushing For Heavy Duty Swing Joints
Price:
3.1-28$
MOQ:
100.PCS
Delivery Time:
5 working days
Brand:
GQZ
Product Description
1. Product Overview
SB75A is heavy-duty radial spherical plain bearing of SB-A series, constructed with inner ring and outer ring adopting steel-on-steel friction pair, equipped with built-in grease fitting for regular supplementary lubrication. Its spherical contact surface allows maximum 5° self-aligning tilt angle, capable of enduring large radial load plus bidirectional axial load, perfectly matching swing, oscillating and misaligned transmission joints of heavy machinery.
Formal quotation will be sent within 24 hours upon your inquiry.
2. Technical Specifications
| Parameter | Value |
|---|---|
| Model | SB75A |
| Main dimensions | d75 mm, D120 mm, Inner ring width B64 mm, Outer ring width C55 mm |
| Spherical diameter dk | 110 mm |
| Min chamfer rs | 0.6 mm |
| Permissible tilt angle | 5° |
| Net weight | 3.02 kg |
| Dynamic load rating Cr | 593 kN |
| Static load rating Cor | 3560 kN |
| Structure | Open type without sealing, outer ring with lubrication hole |
| Material | GCr15 chrome bearing steel, molybdenum disulfide coated sliding surface |
| Precision grade | Standard P0; P6/P5 precision optional |
Complete dimension drawings and load data available on request.
3. Core Advantages
- Steel-on-steel contact structure delivers ultra-high static & dynamic load capacity for heavy-load swing working conditions
- Spherical sliding surface realizes 5° self-alignment, compensates installation deviation and shaft deflection automatically
- Reserved grease injection hole facilitates regular lubrication to reduce friction and extend service life
- Separable inner and outer ring allows independent interference fit on shaft and housing, convenient disassembly and maintenance
- Compact integral structure saves installation space compared with rod end bearing assemblies
- Standard metric ISO dimension, fully interchangeable with same-spec spherical plain bearings
- Customizable options: double side rubber seals, anti-corrosion surface coating, OEM laser marking, high-temperature lubricant
Effectively reduce swing friction noise, prevent metal seizure and lower long-term equipment maintenance cost.
4. Application Scenarios
- Hydraulic cylinders, valve swing joints and hydraulic actuators
- Construction machinery, excavator, loader arm pivot connection parts
- Agricultural machinery heavy-duty oscillating transmission assemblies
- Large conveyor swing supports and automation rotary fixtures
- Mining equipment, engineering vehicle suspension and linkage joints
- General heavy machinery with frequent oscillating & misaligned movement
5. Why Choose GQZ Bearing
- 25 years professional manufacturer of spherical plain bearings and rod end bearings
- Products exported to over 50 countries worldwide
- Strict inspection on hardness, spherical surface finish, load capacity and tilt flexibility before shipment
- 24-hour professional technical support for bearing matching and installation guidance
- Sufficient bulk stock for hydraulic, construction and engineering machinery distributors
- We supply stable dimensional accuracy, reliable heavy-load swing performance and long-term cooperative support.
6. Quality Control Process
- GCr15 raw material chemical composition and hardness inspection
- Precision internal & external spherical surface superfinishing grinding
- Molybdenum disulfide solid lubricant coating treatment
- Lubrication hole processing and deburring
- Full dimension tolerance, load bearing and swing flexibility test
7. Request Quotation
If you need SB75A steel-on-steel spherical plain bearings:
Send inquiry to obtain below supports:
- Quick formal quotation within 24 hours
- Professional installation interference fit suggestion
- Custom sealed structure and high-temperature lubrication solutions
- Competitive factory direct price
Contact our sales team for full technical datasheets and formal offer.
8. FAQ
Q1: What is SB75A used for?
SB75A radial spherical plain bearing is applied for heavy load oscillating joints that allow certain misalignment.
Q2: Core dimension and load parameter of SB75A?
75×120×64mm; dynamic load 593kN, static load 3560kN, weight 3.02kg.
Q3: What’s the maximum self-aligning angle?
Max permissible tilt angle without seals reaches 5 degrees.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuxi Guangqiang Bearing Trade Co.,Ltd
Location
No. 650 North Xingyuan Road, Beitang District, Wuxi, China.
Contact Person
Mike Zhang