GE 140 TXA-2LS Steel / PTFE Fabric Spherical Plain Bearing Maintenance Free 140x210x90mm

1. Product Overview

GE140TXA-2LS is heavy-duty maintenance-free spherical plain bearing with integral self-lubricating sliding layer, unified dimension inner bore d=140mm, outer diameter D=210mm, overall width B=90mm.
Suffix code explanation:

• TXA: Inner ring bonded high-performance self-lubricating PTFE composite sliding liner, no regular grease refilling required;
• 2LS: Double-sided integrated NBR double-lip contact dust & water seal, block mud, dust, moisture and splash cutting fluid for harsh outdoor working conditions.

It consists of hardened steel inner spherical ring, outer race and built-in self-lubricating liner. The spherical matching surface allows large-angle radial swing and small angular tilting compensation, bears combined heavy radial load + bidirectional axial impact load simultaneously. Inner and outer rings adopt GCr15 bearing steel overall quenching to high hardness, stable wear resistance and anti-fatigue performance. Widely used for large engineering machinery hydraulic cylinders, mining equipment connecting rods, metallurgical heavy swing mechanisms, port lifting machinery and heavy agricultural vehicle hinge joint positions.

Get a quote within 24 hours for your project

2. Technical Specifications

Complete installation dimension drawings, load curve and liner friction test data are available upon customer request.

3. Key Advantages

1. TXA integrated PTFE self-lubricating liner design, long-term maintenance-free operation, eliminate periodic grease filling work and reduce equipment maintenance labor cost
2. Double-sided 2LS double-lip composite rubber sealing structure, excellent mud, dust and splash water isolation performance, adapt to construction, mining outdoor harsh dusty humid environment
3. Spherical sliding matching surface can automatically compensate installation misalignment and swing deflection, avoid clamping stagnation and abnormal surface peeling wear under eccentric load
4. Whole inner and outer rings overall quenched high-hardness steel, strong resistance to heavy impact and alternating cyclic load, long contact fatigue service life
5. Low friction coefficient self-lubricating liner, stable smooth swing movement without dry grinding ablation under low-speed heavy load continuous operation
6. Customizable options: single LS seal, open non-seal version, stainless steel rings, high-temperature resistant FKM seals, OEM laser marking, extra thick wear-resistant liner upgrade

Effectively extend service life of heavy machinery hinge and hydraulic cylinder joint assemblies in harsh construction sites

4. Applications

This GE140TXA-2LS sealed maintenance-free spherical plain bearing is widely matched for heavy industrial swing hinge equipment:

• Large excavator, loader, bulldozer hydraulic cylinder end connecting joint assemblies
• Mining heavy transport vehicle, underground mining equipment swing connecting rod bearing positions
• Metallurgical rolling mill swing adjustment mechanism, heavy smelting equipment hinge parts
• Port container lifting machinery, large crane boom swing joint supporting components
• Heavy agricultural harvesters, engineering vehicle chassis large hinge wear spare parts
• Aftermarket replacement spare parts for 140mm bore maintenance-free double seal spherical plain bearing

Ideal heavy-load self-lubricating joint bearing solution for outdoor muddy dusty construction and mining machinery

5. Why Choose GQZ Bearing

• 25 years of professional GE series self-lubricating spherical plain bearing manufacturing experience
• GE140TXA-2LS fully dimensionally interchangeable with international standard TXA 2LS joint bearings, consistent load capacity and sealing performance
• Complete OEM & ODM customized service supporting single/open seal, high-temperature sealing and thickened sliding liner customization
• Full-process strict inspection: raw material hardness test, spherical surface grinding precision, liner bonding firmness and mud-proof sealing durability cycle test before delivery
• Professional spherical plain bearing engineering team provides housing and shaft tolerance matching installation guidance within 24 hours
• Stable large-scale heavy bearing production lines with preferential bulk wholesale price for long-term construction and mining machinery manufacturers

We focus on maintenance-free low-friction performance, reliable all-weather sealing and long-term win-win cooperation with global heavy equipment buyers

6. Quality Control

• Raw material chemical composition and surface hardness inspection of GCr15 chrome bearing steel
• Precision turning, quenching tempering and spherical surface mirror superfinishing processing for inner and outer rings
• Constant temperature heat treatment to stabilize internal metal stress and improve impact wear resistance
• Special targeted performance testing: TXA liner friction durability test, 2LS seal mud splash isolation test, heavy static load deformation inspection
• PTFE composite liner hot-press bonding inspection, full dimensional & appearance recheck before anti-rust oil packaging and shipment

Every batch of GE140TXA-2LS bearings passes full sampling heavy alternating swing cycle durability test to guarantee stable maintenance-free operation under outdoor harsh working conditions

7. Get a Quote Now

If you need heavy load maintenance-free GE140TXA-2LS double 2LS sealed self-lubricating spherical plain bearings for construction hydraulic cylinders and mining swing machinery, send your inquiry to us directly.
You will receive full professional supporting services after submitting inquiry:

• Fast official factory quotation reply within 24 hours
• One-on-one shaft & housing tolerance matching installation parameter guidance by professional spherical bearing engineers
• Customized bearing solution suggestions including single LS sealed and open non-seal variants
• Competitive direct factory bulk wholesale price for heavy machinery spare parts bulk orders

Send your required purchase quantity and equipment working environment to obtain detailed formal quotation

8. FAQ

Q1: What do TXA and 2LS suffixes stand for?

A1: TXA = built-in PTFE composite self-lubricating liner for maintenance-free operation; 2LS = double-sided double lip contact rubber seal for dust, mud and splash water protection.

Q2: Does GE140TXA-2LS need regular grease filling?

A2: No, the TXA self-lubricating liner provides permanent solid lubrication, suitable for hard-to-maintain outdoor heavy machinery; open GE bearings without TXA liner require periodic greasing.

Q3: What load types can this spherical plain bearing bear?

A3: It can bear heavy radial load together with bidirectional axial load, and allows a maximum static swing tilt angle of ±4 degrees to compensate installation misalignment.