More Than a Supplier — Your Reliable Bearing Partner.
More Than a Supplier — Your Reliable Bearing Partner.
The SI T/K Series features an internal female thread design with both right-hand and left-hand thread options. The advanced self-lubricating structure uses a steel/PTFE composite sliding pair, providing low friction operation without regular grease lubrication. This makes it an ideal PTFE Rod End Bearing solution for applications where reduced maintenance and stable performance are required.
The SI..T/K Series is a precision-manufactured, maintenance-free rod end bearing with internal threads (left-hand or right-hand available), specifically designed for internal linkage connections in equipment. It adopts a steel/polytetrafluoroethylene (PTFE) composite sliding pair. The ball is made of heat-treated bearing steel (hardness HRC 58-62) with hard chrome plating, the outer ring is brass, and the rod end body is made of medium carbon steel with environmentally friendly zinc plating. The integrated self-lubricating structure eliminates the need for regular grease injection. The four-piece core design significantly enhances impact resistance, enabling stable bearing of tensile and compressive loads on internal equipment linkages. It effectively simplifies equipment maintenance processes during long-term operation and is compatible with a wide range of metric sizes, meeting the precise assembly requirements of internal linkages in various equipment.
Gonuo SI T/K Series Self-Lubricating Female Rod End Bearing is a precision-engineered Metric Rod End Bearing designed for industrial equipment requiring smooth angular movement, high wear resistance and long-term maintenance-free operation.
As a professional Rod End Bearing Manufacturer China, Gonuo provides reliable rod end bearing solutions for automation machinery, hydraulic systems, construction equipment and industrial linkage applications.
Core Advantages
1. Maintenance-free self-lubricating design
2. High wear resistance and corrosion protection
3. Four-piece structure for superior impact resistance
4. Precise internal thread adaptation
5. Full coverage of wide specifications
Sliding Contact Pair: | Steel/PTFE Composite |
Rod End Body Material: | Medium Carbon Steel, Environmental Zinc Plated |
Outer Ring Material: | Brass |
Ball: | Bearing Steel, Heat Treatment, Hardness HRC 58-62, Hard Chromium Plated |
| Bearing number | Dimensions | kN Load Ratings | g Weight | ||||||||||||||
| d | d₃ | B | C₁ | W | h₁ | d₂ | L₄ | L₅ | d₄ | d₅ | dₖ | L₃ min | α° ≈ | Dynamic | Static | ||
| SI5T/K | 5 | M5×0.8 | 8 | 6 | 9 | 27 | 18 | 36 | 4 | 8.5 | 11 | 11.11 | 10 | 13 | 5.70 | 6.00 | 17.5 |
| SI6T/K | 6 | M6×1.0 | 9 | 6.75 | 11 | 30 | 20 | 40 | 5 | 10 | 13 | 12.70 | 12 | 13 | 7.20 | 7.65 | 25 |
| SI8T/K | 8 | M8×1.25 | 12 | 9 | 14 | 36 | 24 | 48 | 5 | 12.5 | 16 | 15.875 | 16 | 14 | 11.6 | 12.9 | 49 |
| SI10T/K | 10 | M10×1.5 | 14 | 10.5 | 17 | 43 | 28 | 57 | 6.5 | 15 | 19 | 19.05 | 20 | 13 | 14.5 | 18.0 | 74.6 |
| SI10-1T/K | 10 | M10×1.25 | 14 | 10.5 | 17 | 43 | 28 | 57 | 6.5 | 15 | 19 | 19.05 | 20 | 13 | 14.5 | 18.0 | 74.6 |
| SI12T/K | 12 | M12×1.75 | 16 | 12 | 19 | 50 | 32 | 66 | 6.5 | 17.5 | 22 | 22.225 | 22 | 13 | 17.0 | 24.0 | 107 |
| SI12-1T/K | 12 | M12×1.25 | 16 | 12 | 19 | 50 | 32 | 66 | 6.5 | 17.5 | 22 | 22.225 | 22 | 13 | 17.0 | 24.0 | 107 |
| SI14T/K | 14 | M14×2.0 | 19 | 13.5 | 22 | 57 | 38 | 75 | 8 | 20 | 25 | 25.40 | 25 | 16 | 24.0 | 31.0 | 163 |
| SI14-1T/K | 14 | M14×1.5 | 19 | 13.5 | 22 | 57 | 38 | 75 | 8 | 20 | 25 | 25.40 | 25 | 16 | 24.0 | 31.0 | 163 |
| SI16T/K | 16 | M16×2.0 | 21 | 15 | 24 | 64 | 40 | 84 | 8 | 22 | 27 | 28.575 | 28 | 15 | 28.5 | 39.0 | 216 |
| SI16-1T/K | 16 | M16×1.5 | 21 | 15 | 24 | 64 | 40 | 84 | 8 | 22 | 27 | 28.575 | 28 | 15 | 28.5 | 39.0 | 216 |
| SI18T/K | 18 | M18×1.5 | 23 | 16.5 | 27 | 71 | 46 | 93 | 10 | 25 | 31 | 31.75 | 32 | 15 | 42.5 | 47.5 | 303 |
| SI20T/K | 20 | M20×1.5 | 25 | 18 | 30 | 77 | 50 | 102 | 10 | 27.5 | 34 | 34.925 | 33 | 14 | 42.5 | 57.0 | 386 |
| SI22T/K | 22 | M22×1.5 | 28 | 20 | 32 | 84 | 54 | 111 | 12 | 30 | 38 | 38.10 | 37 | 15 | 57.0 | 68.0 | 500 |
| SI25T/K | 25 | M24×2.0 | 31 | 22 | 36 | 94 | 60 | 124 | 12 | 33.5 | 42 | 42.85 | 42 | 15 | 68.0 | 85.0 | 645 |
| SI28T/K | 28 | M27×2.0 | 35 | 24 | 41 | 103 | 66 | 136 | 14 | 37 | 46 | 47.60 | 51 | 15 | 86.0 | 107.0 | 714 |
| SI30T/K | 30 | M30×2.0 | 37 | 25 | 41 | 110 | 70 | 145 | 15 | 40 | 50 | 50.80 | 51 | 17 | 88.0 | 114.0 | 1105 |
| SI30-1T/K | 30 | M27×2.0 | 37 | 25 | 41 | 110 | 70 | 145 | 15 | 40 | 50 | 50.80 | 51 | 17 | 88.0 | 114.0 | 1105 |
| SI35T/K | 35 | M36×2.0 | 43 | 28 | 50 | 125 | 81 | 165.5 | 17 | 46 | 58 | 57.10 | 56 | 16 | 101 | 206 | 1600 |
| SI40T/K | 40 | M42×2.0 | 49 | 33 | 55 | 142 | 91 | 187.5 | 19 | 53 | 65 | 66.60 | 60 | 17 | 124 | 280 | 2400 |
| SI50T/K | 50 | M48×2.0 | 60 | 45 | 60 | 160 | 117 | 218.5 | 23 | 65 | 75 | 82.50 | 65 | 12 | 308 | 485 | 5000 |
Tips:
If the thread is left-hand (LH), the letter "L" must be appended to the bearing designation, e.g., SIL 18 T/K.
For bearings made of stainless steel, add the prefix “S” to the model designation, e.g., SSI8 T/K.
Industrial Automation: Self-Lubricating Female Rod End Bearing used for linkage systems in packaging machinery, printing presses, textile equipment and automated production lines.
Construction Machinery: PTFE Rod End Bearing applied in control linkages for excavators, loaders, compactors and heavy-duty machinery.
Material Handling: Industrial Linkage Rod End Bearing used in conveyors, lifting platforms and automated guided vehicles requiring reliable pivot connections.
Off-Highway Vehicles: Steering and throttle linkages for tractors and agricultural implements.
Hydraulic & Pneumatic Cylinders: Metric Rod End Bearing provides secure mounting solutions for hydraulic cylinders, pneumatic actuators and motion control systems requiring smooth angular movement.
When you choose Gonuo, you benefit from our integrated manufacturing and quality system, directly addressing the core concerns of overseas buyers.
As an integrated industry-and-trade manufacturer, we control the entire supply chain — from raw material sourcing to final assembly. This ensures unmatched batch-to-batch consistency, eliminates quality risks, and guarantees stable production for every order.
Need specific thread lengths, enhanced corrosion protection, or special materials? Our experienced engineering team provides full technical support for complex designs and offers non-standard customization, focusing on tight tolerances and reliable performance for your critical applications.
Our end-to-end strict quality control (QC) processes deliver components with up to 30% longer service life under demanding conditions. We provide material certifications and test reports for complete traceability and peace of mind.
Leveraging our mature supply chain and large-scale production, we offer stable supply, competitive pricing, and flexible MOQs (bulk or small batches). Our fast replenishment system aligns with your production schedule, helping you reduce procurement costs without compromising quality.
For over 20 years, Gonuo has been a trusted brand in precision transmission components, exporting to North America, South America, Russia, and beyond. Based in Ningbo, China, we are committed to consistent quality and long-term partnerships, serving industries worldwide.
Whatsapp: +86-18868534347
E-mail: lucy@gonuo-hardware.com
ADD: 904 No.426, Xueshi Road, Yinzhou , Ningbo, China.
Mobile: 0086-18868534347
