GF...DO Series — Rod End Housing for Welding Maintenance Required

GF…DO Series — Rod End Housing for Welding Maintenance Required

GF-DO-SERIES — 14 bore sizes · d 20–120 mm · For welding · 45-degree weld preparation · GE..ES insert.

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

SKU: GF-DO-SERIES Categories: , Tags: , , ,
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Rod End Bearings › Housing / Welding / GE..ES Insert

GF...DO Series — Rod End Housing for Welding Maintenance Required

14 bore sizes · d 20–120 mm · For welding · 45-degree weld preparation · GE..ES insert

Maintenance Required14 Sizes 20–120mmFor Welding45-Degree Weld PrepGE..ES Insert

🆕 Series Overview

The GF..DO series is a heavy-duty rod end housing designed specifically for full-penetration butt welding to a structural frame. The housing base has a 45-degree chamfer weld preparation on both sides for maximum structural strength at the weld interface.

Available in 14 bore sizes from 20 mm to 120 mm. Larger bore range than GK..DO — suited for the heaviest structural and industrial pivot applications. Lubrication hole and grease nipple provided. 2RS sealed insert option available.

GF DO rod end bearing product photo

⚙ Key Design Features

🔧

45-Degree Weld Preparation

Base chamfered to 45 degrees on both faces for full-penetration butt weld joint — maximum structural strength.

🔁

GE..ES Spherical Insert

Full GE..ES load ratings. Insert lubricated through housing nipple.

📈

Heavy-Duty Bore Range

20 mm to 120 mm covering the heaviest industrial and structural pivot applications.

⚙

Lubrication Hole

Grease nipple for in-situ insert re-lubrication.

🔒

2RS Sealed Option

Sealed insert available for contaminated or outdoor environments.

🔎

Maximum Load Capacity

GF housing provides the highest structural rigidity in the GBC rod end housing range.

📋 Specification Table

ⓘ d = bore. La = overall housing length. h2 = base height. D = housing outer diameter. Load ratings of GE..ES insert. Weight in grams.

Part No. d C1 B d2 La h2 D Dyn C kN Sta C0 kN Wt g
GF20DO 20 19 16 50 63 38 35 30.0 69.5 350
GF25DO 25 23 20 55 72.5 45 42 48.0 69.5 530
GF30DO 30 28 22 65 83.5 51 42 62.0 118 870
GF35DO 35 30 25 83 102.5 61 55 80.0 196 1500
GF40DO 40 35 28 100 119 69 100 100 300 2400
GF45DO 45 40 32 110 132 77 68 127 380 3400
GF50DO 50 40 35 125 149.5 88 75 156 440 4400
GF60DO 60 50 44 140 170 100 90 245 570 7100
GF70DO 70 55 49 164 197 115 90 315 695 10500
GF80DO 80 60 55 180 231 141 120 400 780 15000
GF90DO 90 65 60 226 263 150 120 490 1340 23500
GF100DO 100 70 70 250 295 170 150 610 1500 31500
GF110DO 110 70 70 295 332.5 185 180 655 2160 48500
GF120DO 120 90 85 360 390 210 180 950 3250 79000
GF DO rod end bearing specification drawing

🔭 Materials & Construction

Housing: structural steel, machined, with 45-degree weld chamfer. Insert: GE..ES or GE..ES 2RS — 100Cr6, phosphate-treated, lubrication grooves, optional NBR seals.

●

Structural Steel Housing

Machined with 45-degree chamfer weld preparation.

🔭

GE..ES Insert

100Cr6, HRC 58–64, phosphate-treated.

🔒

2RS Sealed Insert Option

NBR lip seals for outdoor and contaminated environments.

🏭 Typical Applications

⚙

Bridge and Civil Engineering

Heavy pivot housing frames for bridge expansion bearings and movable bridge drive mechanisms.

📈

Offshore Crane Pivots

Slewing and luffing pivot housing frames for offshore cranes and marine lifting equipment.

🔎

Heavy Press Machines

Eccentric drive and toggle mechanism pivot housing frames in heavy stamping and forging presses.

⚙

Steel Mill Equipment

Rolling mill guide and deflector roller pivot frames and coiler drive frames.

🔭

Port Machinery

Ship-to-shore crane boom pivot frames and container spreader mechanism pivot brackets.

📈

Power Stations

Heavy actuator pivot housing frames in control rod drive mechanisms and turbine gate linkages.

rod end bearings selection guide overview

🔧 Installation & Maintenance

🔎 Weld Procedure

Full-penetration butt weld using 45-degree chamfer. Preheat per material specification. Do not weld within 50 mm of insert.

🔧 Insert Protection

Remove insert or shield before welding. Re-install after housing has cooled.

📈 Post-Weld Inspection

Inspect weld for full fusion before re-installing insert.

⚙ Lubrication After Installation

Apply NLGI-2 EP grease through nipple after installation.

🌡 Temperature

-30 to +110 C with standard GE..ES insert and mineral EP grease.

✅ Re-lubrication Interval

Every 200–500 hours. Sealed 2RS option extends interval in contaminated environments.

❓ Frequently Asked Questions

▶ What bearing insert does the GK/GF/GIHR/GIHN housing use?

GK..DO, GF..DO, GIHR..DO, and GIHN-K..LO housings incorporate a radial spherical plain bearing (GE..ES or GE..ES 2RS) as the insert element. The housing provides the structural mounting interface while the spherical plain bearing provides the self-aligning sliding contact.

▶ What does the DO suffix mean?

DO indicates a weldable or weld-base housing design. The housing body has a weldable base plate or weld preparation that allows direct welding to a structural frame or clevis bracket, eliminating fastener holes and reducing installation complexity for heavy structural applications.

▶ Can GK/GF housings be sealed?

Yes. GK..DO and GF..DO housings can be manufactured with 2RS lip seals. Sealed designs are recommended for contaminated or outdoor environments. The standard open design is used where contamination risk is low and re-lubrication access is easy.

▶ What is the re-lubrication method for these housings?

A lubrication hole and grease nipple are provided on the housing body. Apply NLGI-2 EP grease through the nipple at regular intervals depending on load and contamination level. Asterisk sizes indicate re-lubrication is not possible for that size.

▶ How is the GIHN-K..LO series different from GIHR..DO?

GIHN-K..LO is the long design (LO) locking-nut housing. It has an extended body length that increases the moment load capacity significantly compared to GIHR..DO for the same bore. It uses the GE..LO long spherical plain bearing insert.

📞 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.

GF-DO-SERIES — 14 bore sizes · d 20–120 mm · For welding · 45-degree weld preparation · GE..ES insert.

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: GF-DO-SERIES Categories: , Tags: , , ,

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