More Than a Supplier — Your Reliable Bearing Partner.
SA series rod end bearing features a durable rod end body with LH or RH internal threads and a radial spherical plain bearing GE..E(S) or GE..ES 2RS. The SAE rod end bearing adopts zinc-plated surface treatment for corrosion resistance. Available in SA..E rod end bearing and SA..ES rod end bearing designs, the SA..ES type includes a lubrication hole or grease nipple. As a metric male rod end bearing SA series, it provides reliable performance with a steel steel rod end bearing structure for industrial applications and serves as an ideal maintenance rod end bearing solution.
SA..E(S)/SA..ES 2RS Series is a high-load maintenance rod end bearing designed for industrial external linkage applications. As a metric male rod end bearing SA series, it features LH/RH external threads and combines a durable rod end body with GE..E(S)/GE..ES 2RS spherical plain bearings. The SAE rod end bearing adopts a zinc-plated medium carbon steel body and a steel steel rod end bearing structure with heat-treated bearing steel components for excellent strength and wear resistance. The SA..E rod end bearing is suitable for heavy-duty applications, while the SA..ES rod end bearing includes lubrication holes or grease nipples for easier maintenance. Optional 2RS seals provide enhanced protection against dust and moisture.
Product Features of SA Series Rod End Bearing
1. High Load Steel Steel Rod End Bearing Design
The steel steel rod end bearing structure uses a steel-on-steel sliding contact design, providing high strength and excellent resistance to heavy loads, vibration and impact. It is suitable for applications requiring reliable mechanical movement under harsh operating conditions.
2. Maintenance Lubrication System for Longer Service Life
The SA..ES rod end bearing adopts a lubrication-friendly design that allows regular grease maintenance. This maintenance rod end bearing reduces friction between sliding surfaces, improves wear resistance and extends operating life.
3. Precision Metric Male Rod End Bearing Structure
The metric male rod end bearing SA series is designed with an external thread shank for direct installation into mechanical assemblies. The precise thread structure ensures secure mounting and stable performance in linkage systems.
4. SA..E and SA..ES Series Options
Gonuo offers different configurations to meet various industrial requirements:
SA..E Rod End Bearing
The SA..E rod end bearing is suitable for general mechanical applications requiring smooth angular movement, high load capacity and reliable operation.
SA..ES Rod End Bearing
The SA..ES rod end bearing is designed with lubrication features for applications requiring regular maintenance and extended service performance.
SAE Rod End Bearing
The SAE rod end bearing provides a standardized solution for industrial equipment, offering compatibility with various machinery and motion control systems.
Core Advantages
1. Steel/Steel Sliding Structure for Heavy Loads
The steel steel rod end bearing design provides excellent load capacity, wear resistance and impact performance, making it suitable for heavy-duty machinery and industrial linkage systems.
2. Maintenance-Friendly Design for Long Service Life
The SA..ES rod end bearing features lubrication holes or grease nipples, allowing regular maintenance and ensuring reliable operation in outdoor and demanding environments.
3. Optional 2RS Double Seal Protection
The SA..E rod end bearing with optional 2RS sealing effectively blocks dust and moisture, improving durability in harsh working conditions.
4. Secure External Thread Connection
The metric male rod end bearing SA series adopts high-strength external threads for direct and stable fastening with equipment frames.
5. Enhanced Corrosion Resistance
The SA series rod end bearing uses zinc plating and phosphating treatments to provide dual rust protection and extend service life.

Sliding Contact Pair: | Steel/Steel |
Rod End Body Material: | Medium Carbon Steel, Environmental Zinc Plated |
Outer Ring Material: | Bearing Steel, Heat Treatment |
Ball: | Bearing Steel, Heat Treatment |
| Bearing number | Dimensions | kN Load Ratings | g Weight | ||||||||||||
| d | d₃ 6H | B | C₁ | L₁ min | d₂ | L₇ min | h | L₂ | dₖ | R₁s | α° ≈ | Dynamic | Static | ||
| SA 6 E* | 6 | M6×1.0 | 6 | 4.4 | 18 | 21 | 11 | 36 | 46.5 | 10 | 0.3 | 13 | 3.40 | 8.15 | 17 |
| SA 8 E* | 8 | M8×1.25 | 8 | 6 | 22 | 24 | 14 | 42 | 54 | 13 | 0.3 | 15 | 5.50 | 12.9 | 29 |
| SA 10 E* | 10 | M10×1.5 | 9 | 7 | 26 | 29 | 15 | 48 | 62.5 | 16 | 0.3 | 12 | 8.15 | 17.6 | 51 |
| SA 12 E* | 12 | M12×1.75 | 10 | 8 | 28 | 34 | 17 | 54 | 71 | 18 | 0.3 | 11 | 10.8 | 24.5 | 86 |
| SA 15 ES | 15 | M14×2.0 | 12 | 10 | 34 | 40 | 20 | 63 | 83 | 22 | 0.3 | 8 | 17.0 | 36.0 | 140 |
| SA 17 ES | 17 | M16×2.0 | 14 | 11 | 36 | 46 | 23 | 69 | 92 | 25 | 0.3 | 10 | 21.2 | 45.0 | 190 |
| SA 20 ES | 20 | M20×1.5 | 16 | 13 | 43 | 53 | 27 | 78 | 104.5 | 29 | 0.6 | 9 | 30.0 | 60.0 | 310 |
| SA 25 ES | 25 | M24×2.0 | 20 | 17 | 53 | 64 | 32 | 94 | 126 | 35.5 | 0.6 | 7 | 48.0 | 83.0 | 560 |
| SA 30ES | 30 | M30×2.0 | 22 | 19 | 65 | 73 | 37 | 110 | 146.5 | 40.7 | 0.6 | 6 | 62.0 | 110 | 890 |
| SA 35 ES | 35 | M36×3.0 | 25 | 21 | 82 | 82 | 41 | 140 | 181 | 47 | 0.6 | 6 | 80.0 | 146 | 1400 |
| SA 40 ES | 40 | M39×3.0 | 28 | 23 | 86 | 92 | 46 | 150 | 196 | 53 | 0.6 | 7 | 100 | 180 | 1800 |
| SA 45 ES | 45 | M42×3.0 | 32 | 27 | 94 | 102 | 51 | 163 | 214 | 60 | 0.6 | 7 | 127 | 240 | 2600 |
| SA 50 ES | 50 | M45×3.0 | 35 | 30 | 107 | 112 | 56 | 185 | 241 | 66 | 0.6 | 6 | 156 | 290 | 3400 |
| SA 60 ES | 60 | M52×3.0 | 44 | 38 | 115 | 135 | 68 | 210 | 277.5 | 80 | 1.0 | 6 | 245 | 450 | 5900 |
| SA 70 ES | 70 | M56×4.0 | 49 | 42 | 125 | 160 | 80 | 235 | 315 | 92 | 1.0 | 6 | 315 | 610 | 8200 |
| SA 80 ES | 80 | M64×4.0 | 55 | 47 | 140 | 180 | 90 | 270 | 360 | 105 | 1.0 | 6 | 400 | 750 | 12000 |
Tips:
If the thread is left-hand (LH), the letter "L" must be appended to the bearing designation, e.g., SA 20 ES 2RS.
For bearing bore diameter d ≥ 15, the -2RS sealed variant is also available, e.g., SI 20 ES 2RS.
Models marked with an asterisk (*) do not include a lubrication hole or grease nipple.
The SA..E(S) Series Male Rod End Bearings are widely used across various industries:
Industrial Automation: Ideal for linkages in packaging machinery, printing presses, and textile equipment where reliable rod end bearing performance is critical.
Construction Machinery: Perfect for control linkages in excavators, loaders, and compactors requiring durable male rod end bearing solutions.
Material Handling: Pivot points for conveyors, lifts, and automated guided vehicles.
Off-Highway Vehicles: Steering and throttle linkages for tractors and agricultural implements.
Hydraulic & Pneumatic Cylinders: End mounts for cylinders requiring a secure male thread connection.
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