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{"title":"High Precision Male Threaded Rod End Bearing 5mm 80mm Bore for Packaging","imgUrl":"https:\/\/img.chinax.com\/nimg\/46\/1e\/1dce87e0d931365d8aa75b50845e-200x200-1\/high_precision_male_threaded_rod_end_bearing_5mm_80mm_bore_for_packaging_industry.jpg","attrs":{"Precision rating":"High Precision,P0","Packing":"Thread Protection,Individually Bagged,wooden","Certification":"ISO\/TS 16949: 2009","Place of Origin":"China"}}
{"title":"Maintenance Free Left Hand Thread Rod End Bearing 5mm 35mm Spherical Ball Joint","imgUrl":"https:\/\/img.chinax.com\/nimg\/d8\/4b\/3b3be8c76d8f98c9011f891a46e8-200x200-1\/maintenance_free_left_hand_thread_rod_end_bearing_5mm_35mm_spherical_ball_joint.jpg","attrs":{"Brand Name":"SYX","Certification":"ISO\/TS 16949:2009","Minimum Order Quantity":"500pcs","Price":"$0.50 - $25.00"}}
{"title":"Precision Engineered Spherical Rod End Bearing 5mm 80mm Bore Automated","imgUrl":"https:\/\/img.chinax.com\/nimg\/bb\/60\/ed01e6a9b2bc30a559a94fd2f78b-200x200-1\/precision_engineered_spherical_rod_end_bearing_5mm_80mm_bore_automated_production_line.jpg","attrs":{"Sample":"Available,free,accpet","Oem":"Acceptable,Accept","Seals type":"RS,2RS","Payment Terms":"T\/T"}}
{"title":"POS Series Heavy Duty Metric Male Threaded Rod End Bearing Industrial Machinery","imgUrl":"https:\/\/img.chinax.com\/nimg\/6a\/2e\/f14a3ee9bb3c5562c9ba063ec3ad-200x200-1\/pos_series_heavy_duty_metric_male_threaded_rod_end_bearing_industrial_machinery.jpg","attrs":{"Features":"Corrosion Resistance","Thread Type":"Male Thread (External)","Name":"POS Series Heavy Duty Metric Male Threaded Rod End For Industrial","Payment Terms":"T\/T"}}
{"title":"SA Series Corrosion Resistant Spherical Rod End Bearing 5mm 80mm Bore Gar DO INA","imgUrl":"https:\/\/img.chinax.com\/nimg\/72\/02\/f32eef93c4538ea7376c4e50847e-200x200-1\/sa_series_corrosion_resistant_spherical_rod_end_bearing_5mm_80mm_bore_gar_do_ina.jpg","attrs":{"Material":"Chrome Steel,Carbon steel,Stainless steel,Gcr15,Bearing steel ball joint rod ends","Price":"USD0.96-USD45.00","Packaging Details":"carton","Service":"OEM Customized Services,OEM,Prompt Delivery,OEM or private label accepted.,Buyer Label Offered"}}
{"title":"Heavy Duty Rod End Bearing SI SA PHS POS Series Machinery Control Systems","imgUrl":"https:\/\/img.chinax.com\/nimg\/96\/e4\/ac966ec5173ec7fe6f3b07b4fb17-200x200-1\/heavy_duty_rod_end_bearing_si_sa_phs_pos_series_machinery_control_systems.jpg","attrs":{"Minimum Order Quantity":"2000 pcs","Payment Terms":"T\/T","Plating":"Hard chrome plated","Bearing Type":"ROD END"}}
SI5TK, SI6TK, SI8TK, SI10TK, SI12TK, SI14T5K, SI16TK, SI18TK, SI20TK, SI22TK, SI25TK, SI30TK, SI35TK rod end spherical plain bearings feature steel/PTFE sliding contact surfaces equivalent to GIKR...PW INA specifications.
Product Overview
The SI...TK series represents self-lubricating rod end spherical plain bearings designed for connecting linkages and transmission components in industrial automation applications.
Construction & Design
These bearings consist of three main components:
Inner ring (ball) - Hardened bearing steel with hard chrome-plated spherical surface
Self-lubricating composite liner - PTFE/copper alloy for maintenance-free operation
Rod end housing - Carbon steel or stainless steel with internal thread
High load capacity - Withstands significant radial loads and certain axial loads
Excellent misalignment compensation - Allows angular displacement up to ±13° to ±16°
Ideal for light-load, low-speed applications - Perfect for environments where maintenance is difficult or lubricant contamination is unacceptable
Technical Specifications
Category
Details
Design
Internally Threaded Rod End: Housing features ISO Metric Thread (model number indicates thread size) Self-Lubricating Liner: PTFE or sintered bronze composite material
Materials & Finish
Inner Ring: GCr15 bearing steel, hard chrome-plated Outer Housing: Carbon steel (zinc-plated) or stainless steel (440C/304) Sealing: Optional dust covers or seals available
Performance Specifications
Angular Misalignment: 13° to 16° swing angle Load Ratings: Dynamic and static ratings increase with model size (SI10TK: 14.5 kN dynamic, 18 kN static) Operating Temperature: -30°C to +80°C standard (wider range with special materials)
Applications
SI...TK series bearings are widely used in mechanical systems requiring oscillation, rotation, or linkage:
Industrial Automation: Robotic arm joints, end-effector connections, conveyor belt tensioners
Pneumatics & Hydraulics: Cylinder piston rod connections, hydraulic cylinder clevis ends, control valve linkages
Automotive Industry: Throttle cables, clutch pedal linkages, steering tie rods
Aerospace: Flight control systems, door hinges
General Machinery: Packaging machines, textile machinery, printing presses, measuring instruments
Special Environments: Food processing machinery, medical equipment
Frequently Asked Questions
Q: What is the difference between SI...TK and SI...T/K?
SI...TK refers to maintenance-free, self-lubricating versions with composite liners. SI...T/K (or SI...ES) typically denotes versions with grease fittings for periodic re-lubrication. The "K" in TK indicates the composite liner material.
Q: What is the main advantage of the self-lubricating design?
The primary advantage is maintenance-free operation. This eliminates the need for lubrication systems, reduces contamination risk (important in food, medical, and cleanroom applications), and simplifies design and maintenance schedules.
Q: What are the limitations of SI...TK bearings?
Speed: Suitable for low to moderate speeds or oscillating movements only
Load: Not designed for very high continuous axial loads or impact loads
Temperature: Standard PTFE liners have lower maximum operating temperatures (~+80°C to +120°C)
Q: How do I select the right model (e.g., SI8TK, SI12TK)?
Selection is based on:
Thread Size: Match internal thread (M8, M10, M12) to your connecting bolt/rod
Environmental Conditions: Choose appropriate materials and sealing options
Motion Type: Confirm required angular misalignment falls within specifications
Q: Can SI...TK bearings be used in underwater or high-humidity environments?
Standard carbon steel versions with zinc plating offer limited corrosion resistance. For such environments, stainless steel versions (SI..TK-2RS/SS) are strongly recommended. Verify specific corrosion resistance grades and check if seals are suitable for fluid immersion.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
1996
Total Annual:
30000000-50000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Founded in 1996, Shanghai YongXing Bearing Manufacturing Co., Ltd. (SYX) has evolved from a leading manufacturer into a certified innovator at the forefront of precision motion technology. We specialize in engineering and producing high-performance spherical plain bearings, rod ends, and cam f...
Founded in 1996, Shanghai YongXing Bearing Manufacturing Co., Ltd. (SYX) has evolved from a leading manufacturer into a certified innovator at the forefront of precision motion technology. We specialize in engineering and producing high-performance spherical plain bearings, rod ends, and cam f...
