SI...ES Series — Female Thread Rod End Bearing Maintenance Required GE..ES Insert

SI…ES Series — Female Thread Rod End Bearing Maintenance Required GE..ES Insert

SI-ES-SERIES — 16 bore sizes · d 6–80 mm · Female thread · GE..ES or GE..ES 2RS insert · Lubrication hole.

MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.

SKU: SI-ES-SERIES Categories: , Tags: , , ,
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Rod End Bearings › Maintenance-Required / Female Thread / GE..ES Insert

SI...ES Series — Female Thread Rod End Bearing Maintenance Required GE..ES Insert

16 bore sizes · d 6–80 mm · Female thread · GE..ES or GE..ES 2RS insert · Lubrication hole

Maintenance Required16 Sizes 6–80mmFemale ThreadGE..ES Insert2RS Available

🆕 Series Overview

The SI...ES series rod end bearing uses a radial spherical plain bearing (GE..E(S) or GE..ES 2RS) as the insert element combined with a female-threaded steel rod body. The lubrication hole and grease nipple on the rod body enable re-lubrication of the spherical plain bearing insert.

Available in 16 bore sizes from 6 mm to 80 mm. For bore d >= 15 mm the 2RS sealed version (SI..ES 2RS) is also available. Sizes marked with asterisk do not have a lubrication hole. Left-hand thread suffix L (e.g., SIL 30ES).

SI ES rod end bearing product photo

⚙ Key Design Features

🔁

GE..ES Spherical Insert

Maintenance-required GE..ES or GE..ES 2RS radial spherical plain bearing for high load capacity and large misalignment.

🔧

Lubrication Hole

Grease nipple on rod body for re-lubrication of the spherical plain insert in most sizes.

📈

High Load Capacity

GE..ES insert provides higher dynamic and static load ratings than PTFE-lined rod ends of equivalent bore.

⚙

2RS Sealed Option

Sealed insert available from d 15 mm for contaminated or outdoor environments.

✅

16 Bore Sizes

6 mm to 80 mm — widest bore range in the female-thread maintenance-required programme.

🔎

Large Misalignment Angle

GE..ES insert provides higher misalignment angle than PTFE-lined rod ends at equivalent bore.

📋 Specification Table

ⓘ d = bore. Thread d3 = internal rod body thread. W = wrench flat. h1 = rod body height. L4 = overall length. dk = inner ring bore. Asterisk = no lubrication hole. Dimensions mm, load ratings kN, weight grams.

Part No. d Thread B C1 W d2 h1 L4 dk a° Dyn C kN Sta C0 kN Wt g
SI6ES 6 M6x1.0 6 4.4 11 21 30 40.5 10 13 3.4 8.15 21
SI8ES 8 M8x1.25 8 6.0 14 24 36 48 12 13 5.5 12.9 39
SI10ES 10 M10x1.5 9 7.0 17 29 43 57.5 16 12 8.15 17.6 61
SI12ES 12 M12x1.75 10 8.0 19 34 50 67 18 11 10.8 24.5 96
SI15ES 15 M14x2.0 12 10 22 40 61 81 22 8 17.0 36.0 180
SI17ES 17 M16x2.0 14 11 25 46 67 90 25 10 21.2 45.0 220
SI20ES 20 M20x1.5 16 13 32 53 77 103.5 29 9 30.0 60.0 350
SI25ES 25 M24x2.0 20 16 37 64 94 123 35.5 5 42.5 83.0 640
SI30ES 30 M30x2.0 22 19 41 73 110 146.5 40.7 6 62.0 110 930
SI35ES 35 M36x3.0 25 20 50 82 125 156 47 6 80.0 146 1300
SI40ES 40 M39x3.0 28 23 55 92 142 188 53 7 100 180 2000
SI45ES 45 M42x3.0 32 27 60 102 163 197 60 7 127 240 2500
SI50ES 50 M45x3.0 35 30 65 112 160 216 66 6 156 290 3500
SI60ES 60 M52x3.0 44 36 75 135 175 242.5 80 6 245 450 5500
SI70ES 70 M56x4.0 49 42 85 160 200 280 92 6 315 610 8600
SI80ES 80 M64x4.0 55 47 100 180 230 320 105 6 400 750 12000
SI ES rod end bearing specification drawing

🔭 Materials & Construction

Rod body: steel, zinc-plated. Insert: GE..E(S) or GE..ES 2RS — 100Cr6 inner and outer rings, phosphate-treated, lubrication grooves and oil holes, optional NBR lip seals.

●

100Cr6 Insert Rings

Through-hardened HRC 58–64. Phosphate-treated. Lubrication grooves.

🔭

ES Lubrication Grooves

Grooves and oil holes in both rings ensure full coverage during re-lubrication.

🔒

2RS Lip Seals Optional

NBR lip seals both sides for contamination exclusion from d 15 mm.

🏭 Typical Applications

⚙

Heavy Hydraulic Equipment

Large-bore rod end connections on heavy hydraulic cylinders in construction and mining machinery.

📈

Structural Pivots

Rod end pivot connections on heavy structural linkages and machinery frames.

🔎

Agricultural Heavy Duty

Large-implement lift and tilt linkage rod ends on combines and forage harvesters.

⚙

Marine Deck Equipment

Anchor windlass and crane linkage rod ends on ships and offshore platforms.

🔭

Industrial Presses

Eccentric drive rod end connections on mechanical and hydraulic press linkages.

📈

Wind Turbine Systems

Blade pitch actuator rod ends and yaw control linkages on wind turbines.

rod end bearings selection guide overview

🔧 Installation & Maintenance

🔎 Initial Lubrication

Apply NLGI-2 EP grease through nipple before commissioning.

🔧 Re-lubrication

Every 200–500 hours. Increase in contaminated environments.

📈 Specify 2RS for Contamination

Use sealed insert for dusty, wet, or outdoor environments.

⚙ Thread Engagement

Minimum 1.0 to 1.5x nominal diameter. Thread-lock under vibration.

🌡 Temperature

Standard: -30 to +110 C with NBR seals and mineral EP grease.

✅ Insert Replacement

SI..ES housings may allow insert replacement — contact GBC for insert-only supply.

❓ Frequently Asked Questions

▶ How often should the bearing be re-lubricated?

Re-lubricate every 200 to 500 hours of operation depending on load, oscillation frequency, and contamination level. In wet or contaminated environments, increase frequency. Purge with NLGI-2 EP grease through the lubrication fitting until fresh grease appears at the bearing face.

▶ What grease type is recommended?

NLGI-2 lithium-complex EP grease for general industrial use. For low temperature below -20 degrees C, use low-temperature synthetic EP grease. For food-grade applications, use NSF H1 approved grease. Avoid mixing different grease types — purge completely before refilling with a different grease.

▶ Can the bearing be re-lubricated without disassembly?

Yes, provided a grease fitting or lubrication hole is accessible on the housing or rod body. Apply grease at low pressure until it exits at the bearing face or seal edge. Avoid high injection pressure that could displace lip seals.

▶ How do I order left-hand thread?

Add suffix L to the part number. Right-hand thread is standard and requires no suffix. Stainless steel variants add suffix S. Contact us to confirm availability for your specific size.

▶ What is the maximum misalignment angle?

The misalignment angle alpha (a) is listed in the specification table for each size. Do not exceed this angle in sustained operation. Edge loading caused by overangle rapidly accelerates wear at the spherical contact surface.

📞 Ready to Order?

MOQ is 100 units per model. Provide bore diameter, thread specification, load case, and operating environment. All catalogue data is for reference only.

SI-ES-SERIES — 16 bore sizes · d 6–80 mm · Female thread · GE..ES or GE..ES 2RS insert · Lubrication hole.

MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.

Contact Us

Email

sales@australia-drive.com

stuart_hamill@generalbearing.com.au

Tel: +61 3 9070 7991

SKU: SI-ES-SERIES Categories: , Tags: , , ,

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