GIHR…DO Series — Rod End Housing with Locking Nuts Maintenance Required
GIHR-DO-SERIES — 13 bore sizes · d 20–120 mm · Locking slot nut · Female thread · GE..ES insert.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
Rod End Bearings › Housing / Locking Nuts / Female Thread
GIHR...DO Series — Rod End Housing with Locking Nuts Maintenance Required
13 bore sizes · d 20–120 mm · Locking slot nut · Female thread · GE..ES insert
🆕 Series Overview
The GIHR..DO series is a rod end housing with a female internal thread and a locking slot nut. The locking nut clamps the outer ring of the GE..ES spherical plain bearing insert to prevent axial displacement and outer ring rotation under high load and vibration. A lubrication hole and nipple are provided.
Available in 13 bore sizes from 20 mm to 120 mm. Left-hand thread suffix L (e.g., GIHL-K 30 DO). The locking slot nut is tightened with a hook spanner and secured by a locking screw — providing positive insert retention without adhesive.
⚙ Key Design Features
Locking Slot Nut
Slot nut and locking screw prevent outer ring axial movement and rotation under load and vibration.
GE..ES Spherical Insert
Full GE..ES dynamic and static load ratings. Insert lubricated through housing nipple.
Female Thread
Internal thread for connection to male-threaded rods, pins, and actuators.
Grease Nipple
In-situ re-lubrication of insert through housing nipple.
13 Bore Sizes
20 mm to 120 mm for heavy industrial pivot applications.
Vibration Resistant
Locking nut provides retention security superior to press-fit or snap-ring methods under shock and vibration.
📋 Specification Table
ⓘ d = bore. Thread d3 = internal housing thread. d2 = housing outer diameter. Load ratings of GE..ES insert. Weight in grams.
| Part No. | d | Thread d3 | B | C1 | d2 | Dyn C kN | Sta C0 kN | Wt g |
|---|---|---|---|---|---|---|---|---|
| GIHR-K20DO | 20 | M16x1.5 | 16 | 14 | 56 | 30.0 | 72.0 | 430 |
| GIHR-K25DO | 25 | M16x1.5 | 17 | 20 | 56 | 48.0 | 72.0 | 480 |
| GIHR-K30DO | 30 | M22x1.5 | 22 | 22 | 64 | 62.0 | 106 | 740 |
| GIHR-K35DO | 35 | M28x1.5 | 28 | 25 | 70 | 80.0 | 153 | 1200 |
| GIHR-K40DO | 40 | M35x1.5 | 36 | 28 | 80 | 100 | 250 | 2000 |
| GIHR-K50DO | 50 | M45x1.5 | 46 | 35 | 94 | 156 | 386 | 3800 |
| GIHR-K60DO | 60 | M58x1.5 | 59 | 44 | 118 | 245 | 400 | 5400 |
| GIHR-K70DO | 70 | M65x1.5 | 66 | 49 | 140 | 315 | 540 | 8500 |
| GIHR-K80DO | 80 | M80x2.0 | 81 | 55 | 160 | 400 | 670 | 12000 |
| GIHR-K90DO | 90 | M80x2.0 | 106 | 60 | 210 | 490 | 980 | 21500 |
| GIHR-K100DO | 100 | M110x2.0 | 111 | 70 | 230 | 610 | 1120 | 27500 |
| GIHR-K110DO | 110 | M120x2.0 | 125 | 80 | 265 | 655 | 1700 | 40500 |
| GIHR-K120DO | 120 | M130x3.0 | 135 | 85 | 300 | 950 | 2900 | 76000 |
🔭 Materials & Construction
Housing body: structural steel, machined. Locking slot nut: steel. Insert: GE..ES — 100Cr6, phosphate-treated, lubrication grooves.
Steel Housing
Machined structural steel with slot nut bore and locking screw hole.
GE..ES Insert
100Cr6, HRC 58–64, phosphate-treated. Lubrication grooves.
Locking Slot Nut
Steel slot nut and locking screw for positive outer ring retention.
🏭 Typical Applications
Heavy Crane Pivots
Female-thread locking nut housings for crane hoist block pivot connections and boom hinge assemblies.
Mining Hydraulic Systems
Large hydraulic cylinder clevis housing connections where vibration-resistant insert retention is critical.
Press and Forging Equipment
Toggle mechanism and eccentric drive pivot housings where vibration could dislodge standard press-fit inserts.
Civil Infrastructure
Bridge bearing pivot housing assemblies with locking nut insert retention.
Offshore Equipment
Hydraulic tensioner pivot housings and riser support pivot assemblies.
Ship Steering Gear
Rudder quadrant pivot housing assemblies and steering gear link pivot connections.
🔧 Installation & Maintenance
🔎 Insert Installation
Press GE..ES insert into housing bore. Tighten slot nut with hook spanner. Engage locking screw.
🔧 Locking Screw Torque
Tighten to specified torque. Do not overtighten — excess clamping force distorts the outer ring.
📈 Lubrication Before Commissioning
Apply NLGI-2 EP grease through nipple after assembly.
⚙ Re-lubrication
Every 200–500 hours. Inspect locking nut at each interval.
🌡 Temperature
-30 to +110 C with mineral EP grease and standard GE..ES insert.
✅ Insert Replacement
Locking nut allows insert removal and replacement without scrapping housing.
❓ Frequently Asked Questions
📞 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.
GIHR-DO-SERIES — 13 bore sizes · d 20–120 mm · Locking slot nut · Female thread · GE..ES insert.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.
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