BA4023 230*260*16/18 Metal Cased Skeleton Oil Seal | NBR Oil & Wear Resistant Radial Shaft Seal for Construction Machinery & Reducers

Model: BA4023                                                                    Brand:GDK                                                    Size:  230*260*16/18

BA4023 230*260*16/18  Metal Cased Skeleton Oil Seal | NBR Oil & Wear Resistant Radial Shaft Seal for Construction Machinery & Reducers

This Cased skeleton oil seal is a standard‑spec industrial radial shaft seal. Constructed with heavy‑duty steel skeleton and premium nitrile rubber sealing lip, equipped with built‑in self‑tightening garter spring, it acts as a core sealing component for rotary shaft applications.

The rubber lip delivers excellent oil‑resistance, wear‑resistance and anti‑aging performance. It effectively retains hydraulic oil, gear oil and lubricants inside equipment to prevent shaft‑end leakage. Meanwhile, it blocks mud, water, dust and grit from entering the housing, lowering wear on bearings and gears, reducing oil‑leakage breakdowns and extending equipment service life.

Our oil seals fit a wide range of rotary‑shaft working conditions. They are commonly used on construction machinery including excavators, loaders and bulldozers for hydraulic motors, swing motors, wheel reducers and drive axles. They also work well for hydraulic pumps, gear pumps, gear reducers and gearboxes, truck wheel hubs, axles, differentials and other chassis transmission parts, as well as general‑purpose industrial equipment such as agricultural machinery, electric motors and fans. Multiple sizes are available. Easy to install with stable and reliable sealing performance, they are ideal sealing parts for equipment assembly and construction machinery replacement repair.

• Factory Direct & One-Stop Supply: As a leading manufacturer in Guangzhou, China, we offer thousands of seal configurations. You can find full repair kits in one stop.

• Strict Quality Control & Lifetime Test: Every batch undergoes strict pressure and leakage tests to ensure long-term anti-fatigue quality.

• Flexible MOQ & Fast Delivery: We support flexible MOQs for sample orders to let you test quality. Stock items can be dispatched within 3-5 working days.

• Custom Sealing Solutions: Provide your blueprints, dimensions (Inner Diameter Outer Diameter Height), or pictures, and our technical team will customize Spring Energized Seals or rubber parts for you.

Cylinder Seal kits for Construction Heavy Equipment

1,Bucket Cylinder Seal Kit Application: Excavator bucket and grapple cylinders

Contents: Rod oil seals, Buffer seal, Dust seals, Piston Seal, Step seals, Wear rings, O-rings, Back-up rings, Bushing, Wiper seal

2,Arm Cylinder Seal Kit / Dipper Arm Seal Kit

Application: Stick / dipper arm cylinders; high-friction components with the largest market demand for maintenance

Contents: Rod oil seals, Buffer seal, Dust seals, Piston Seal, Step seals, Wear rings, O-rings, Back-up rings, Bushing, Wiper seal

3,Boom Cylinder Seal Kit

Application: Lift boom cylinders working under high pressure; mostly made of PU and PTFE composite materials

Contents: Rod oil seals, Buffer seal, Dust seals, Piston Seal, Step seals, Wear rings, O-rings, Back-up rings, Bushing, Wiper seal

4,Travel Motor Seal Kit

Application: Left & right travel hydraulic motors; complete repair kits consisting of floating oil seals and skeleton oil seals

5,Swing Motor Seal Kit

Application: Swing motors; valve spool oil seals, piston seals and dust seal sets for control valves

6,Pilot Valve Seal Kit

Application: Pilot control joysticks; small-size repair kits with O-rings and oil seals

7,Main Control Valve Seal Kit

Application: Complete hydraulic valve sealing parts for the whole machine, including valve rod oil seals, gaskets and O-ring sets

8,Main Hydraulic Pump Seal Kit