Spherical Plain Bearings › Heavy-Duty Type
GEG..E(S) GEG..ES 2RS Series — Heavy-Duty Spherical Plain Bearing Maintenance Required
20 bore sizes · d 6–120 mm · Higher load ratings · Larger misalignment angle · Heavy-duty
🆕 Series Overview
The GEG..ES and GEG..ES 2RS series are heavy-duty spherical plain bearings providing higher load ratings and larger misalignment angles than the standard GE..ES for equivalent bore sizes. The larger outer diameter and longer B dimension of GEG bearings accommodate a wider spherical raceway, increasing both the dynamic and static load capacity and the rated misalignment angle.
Available in 20 bore sizes from 6 mm to 120 mm, with dynamic load ratings from 5.50 kN to 1,080 kN and misalignment angles up to 21°. The same three designation variants apply: GEG..E (open), GEG..ES (with lubrication grooves and holes), and GEG..ES 2RS (with additional lip seals). GEG bearings are specified wherever the standard GE load rating or misalignment angle is insufficient.

⚙ Key Design Features
Higher Load Ratings
Larger outer diameter and wider raceway deliver substantially higher dynamic and static load ratings than equivalent GE bore sizes — up to 1,080 kN static for GEG120ES.
Larger Misalignment Angle
Rated misalignment angle α is greater than the standard GE series for the same bore, accommodating applications with larger structural angular deflections.
2RS Sealed Option
Outer ring lip seals on both sides retain grease and exclude contamination for industrial environments without additional housing seals.
ES Lubrication Grooves
Circumferential groove and oil holes in both rings ensure even grease distribution across the full spherical contact surface during re-lubrication.
Phosphate Treatment
Both rings phosphate-treated for improved corrosion resistance and grease adhesion at the sliding interface.
20 Bore Sizes
6 mm to 120 mm covering the full range of heavy industrial pivot and linkage applications.
📋 Complete Specification Table
ⓘ Load ratings in kN. GEG series has larger D and B than GE for the same bore d — verify housing bore against specification table. α = maximum misalignment angle. Weight in grams.
| Part Number | Part Number 2RS | d (mm) | D (mm) | B (mm) | C (mm) | Dk (mm) | R1s | R2s | α° | Dyn C (kN) | Sta Co (kN) | Wt (g) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GEG6E | — | 6 | 16 | 9 | 5 | 13 | 0.3 | 0.3 | 21 | 5.5 | 27.5 | 8 |
| GEG8E | — | 8 | 19 | 11 | 6 | 16 | 0.3 | 0.3 | 21 | 8.15 | 40.5 | 14 |
| GEG10E | — | 10 | 22 | 12 | 7 | 18 | 0.3 | 0.3 | 18 | 10.8 | 54 | 20 |
| GEG12E | — | 12 | 26 | 15 | 9 | 22 | 0.3 | 0.3 | 18 | 17.0 | 85.0 | 34 |
| GEG15ES | GEG15ES 2RS | 15 | 30 | 16 | 10 | 25 | 0.3 | 0.3 | 16 | 21.2 | 106 | 46 |
| GEG17ES | GEG17ES 2RS | 17 | 35 | 20 | 12 | 29 | 0.3 | 0.3 | 19 | 30.0 | 146 | 75 |
| GEG20ES | GEG20ES 2RS | 20 | 42 | 25 | 16 | 35.5 | 0.6 | 0.6 | 17 | 48.0 | 240 | 150 |
| GEG25ES | GEG25ES 2RS | 25 | 47 | 28 | 18 | 40.7 | 0.6 | 0.6 | 17 | 62.0 | 310 | 190 |
| GEG30ES | GEG30ES 2RS | 30 | 55 | 32 | 20 | 47 | 0.6 | 1.0 | 17 | 80.0 | 400 | 290 |
| GEG35ES | GEG35ES 2RS | 35 | 62 | 35 | 22 | 53 | 0.6 | 1.0 | 16 | 100 | 500 | 390 |
| GEG40ES | GEG40ES 2RS | 40 | 68 | 40 | 25 | 60 | 0.6 | 1.0 | 17 | 127 | 640 | 520 |
| GEG45ES | GEG45ES 2RS | 45 | 75 | 43 | 28 | 66 | 0.6 | 1.0 | 15 | 156 | 780 | 680 |
| GEG50ES | GEG50ES 2RS | 50 | 90 | 56 | 36 | 80 | 0.6 | 1.0 | 17 | 245 | 1220 | 1400 |
| GEG60ES | GEG60ES 2RS | 60 | 105 | 63 | 40 | 92 | 1.0 | 1.0 | 17 | 315 | 1560 | 2000 |
| GEG70ES | GEG70ES 2RS | 70 | 120 | 70 | 45 | 105 | 1.0 | 1.0 | 16 | 400 | 2000 | 2900 |
| GEG80ES | GEG80ES 2RS | 80 | 130 | 75 | 50 | 115 | 1.0 | 1.0 | 14 | 490 | 2450 | 3500 |
| GEG90ES | GEG90ES 2RS | 90 | 150 | 85 | 55 | 130 | 1.0 | 1.0 | 15 | 610 | 3050 | 5400 |
| GEG100ES | GEG100ES 2RS | 100 | 160 | 85 | 55 | 140 | 1.0 | 1.0 | 14 | 655 | 3250 | 5900 |
| GEG110ES | GEG110ES 2RS | 110 | 180 | 100 | 70 | 160 | 1.0 | 1.0 | 11 | 950 | 4750 | 1100 |
| GEG120ES | GEG120ES 2RS | 120 | 210 | 115 | 70 | 180 | 1.0 | 1.0 | 16 | 1080 | 5400 | 1500 |

🔄 Interchange / Cross-Reference Table
GBC spherical plain bearings are dimensionally interchangeable with the following major brand designations:
| GBC | SKF | FAG | ELGES | IKO | NTN | NMB |
|---|---|---|---|---|---|---|
| GE..E(S) | GE..E | GE..E | GE..DO | GE..E | SA1~..B | SBH..NS |
| GE..ES 2RS | GE..ES | GE..ES | GE..DO 2RS | GE..ES 2FRS | SA1~..BSS | SBH..S |
| GEG..E(S) | GEH..E | GEH..E | GE..FO | GEG..E | GE..G | — |
| GE..C | GE..C | GE..C | GE..UK | GE..C | SAR1~... | — |
| GE..ET 2RS | GE..TE 2TS | GE..UA 2RS | GE..UK 2RS | GE..ET 2RS | — | — |
| PB | — | — | GE..PB | GEBK..S | PB.. | — |
🔭 Materials & Construction
Same 100Cr6 chrome steel (HRC 58–64) as the GE series. The GEG outer ring has a greater wall thickness due to the larger OD, providing higher raceway stiffness under heavy loads. Phosphate-treated inner and outer surfaces. NBR lip seals for 2RS variants rated −30°C to +110°C.
100Cr6 Chrome Steel
Larger outer ring wall thickness versus GE series. HRC 58–64. Spherical surfaces ground to Ra 0.1–0.2 µm.
Phosphate Treatment
Applied to both rings for corrosion resistance and grease adhesion.
NBR Seals (2RS)
Rated −30°C to +110°C. Outer ring split in axial direction for assembly.
🏭 Typical Applications
Heavy Hydraulic Cylinders
Large bore hydraulic actuator clevis joints in construction equipment, offshore platforms, and heavy press machines where load exceeds standard GE ratings.
Mining Equipment
Conveyor drive pivot joints, crusher toggle plate bearings, and hydraulic ram clevis pins in mining machinery require the elevated load capacity of the GEG series.
Steel Mill Equipment
Rolling mill guide arm pivots, shear blade linkages, and press frame joints use GEG bearings for their high load capacity under cyclic shock loads.
Offshore & Marine
Deck crane pivot joints, mooring winch linkages, and hydraulic stabiliser mounts in marine equipment use large GEG bearings for load capacity under extreme dynamic conditions.
Agricultural Heavy Duty
Large baler knotter drives, forage harvester knife head pivots, and self-propelled sprayer boom joints use GEG bearings for higher loads than standard GE can sustain.
Bridge & Civil Structures
Expansion joint bearings and structural pivot points in bridge designs use GEG series for high static loads and large angular deflection during thermal expansion.

🔧 Installation & Maintenance
🔎 Housing Bore
K7 or M7 tolerance for heavy loads. Verify housing bore against the larger GEG outer diameter — housings designed for GE series cannot accept GEG bearings of the same bore.
🔧 Shaft Tolerance
h6 for press fit; js6 for tight sliding. Use a hydraulic press for larger bore sizes — do not use impact force.
📈 Initial Lubrication
NLGI-2 EP grease. Fill 40% of internal cavity. For high-load applications, specify EP2 (extreme pressure) additive grease.
⚙ Re-lubrication Interval
200–400 hours under heavy continuous loads. Increase frequency in contaminated or wet environments. Purge until fresh grease exits.
🌡 Temperature Limit
Standard: −30°C to +110°C. For elevated temperature, specify high-temperature EP grease and FKM seals.
🔒 Load Direction
GEG bearings accept radial loads and combined radial plus axial loads. The maximum axial load fraction is typically 30% of C₀. Do not apply pure axial loads without verifying against the catalogue axial load data.
🔎 Selection Guide
Select GEG series when the standard GE dynamic load rating or misalignment angle is insufficient for the application. GEG housing bores are larger than GE for the same bore — existing GE housings cannot be used without re-machining.
①
Identify Load Type
Confirm load exceeds standard GE rating or required misalignment angle exceeds the GE rated α before selecting GEG.
②
Select Bore & Series
Match bore d to shaft nominal. Verify GEG outer diameter D and width B against available housing bore depth.
③
Verify Misalignment Angle
Verify maximum misalignment angle against GEG-rated α. Calculate equivalent load including axial component — GEG series accepts higher combined loads.
④
Contact Us
MOQ 100 units. Contact our team with bore diameter, load case, misalignment angle, oscillation frequency, and operating environment.
❓ Frequently Asked Questions
📞 Ready to Order?
MOQ is 100 units per model. Provide bore diameter, housing bore, radial and axial loads, misalignment angle, oscillation amplitude and frequency, and operating environment. All catalogue data is for reference only — verify against current drawings before finalising design.
GEG..ES / 2RS — 20 bore sizes · d 6–120 mm · Higher load ratings · Larger misalignment angle · Heavy-duty.
MOQ: 50 pcs. Minimum order value USD 1,500; mixed orders and trial quantities welcome.





