If a standard excavator has lost swing torque and swing speed, a worn JCB220 Swing Reduction Gearbox is the most common cause. The reduction gear set is the highest load point in the swing circuit, so any slack in the bearings shows up immediately as noise, heat and lost speed. RITO keeps this JCB220 Swing Reduction Gearbox in stock as a sealed, pre-assembled replacement.
Item NO.:
JCB220Order(MOQ):
1pcsPayment:
T/T, WESTERN UNION, CHINESE BANK,PAYPALProduct Origin:
JAPANShipping Port:
Huangpu,GuangzhouLead Time：
In StockThe JCB220 Swing Reduction Gearbox is designed for the load profile of standard excavators working in construction and quarry duty. Torque passes from the motor spline through two or three planetary stages into the output shaft, and each stage is shimmed to a controlled end float so the gear mesh stays aligned under shock loads. Housings are machined on CNC centres to keep bore alignment within tolerance, and each unit is pressure tested for leaks.
| Part Number | JCB220 |
| Part Name | Swing Reduction Gearbox |
| Compatible Brand | JCB |
| Applicable Models | JCB220 |
| Application | Excavator swing reduction unit in the upper structure swing circuit |
| Material | Cast iron housing with hardened alloy steel gear set |
| Product Color | Industrial grey / OEM color |
| Working Temperature | -25°C~+80°C |
| Key Function | Turns motor torque into controlled swing rotation |
| Condition | 100% New |
| Packaging | Wooden Case Reinforced Carton Neutral Packing Customized Box |
 | Bolt-On Fitment Mounting pattern, output spline and overall envelope follow the original unit, so the assembly installs with the existing bolts, hoses and guards. |
 | Hardened Internals Gears and shafts are case hardened and ground, giving a tooth surface that resists pitting under the shock loads typical of excavator travel and swing duty. |
 | Rigid Cast Housing The ring gear and bearing bores sit in one casting, holding bore alignment under load so the gear mesh does not walk out of position. |
 | Tested Before Packing Each unit is checked for backlash, turning torque and seal integrity, then packed in a reinforced case to survive international freight. |
Q: Do I need to adjust backlash after fitting?
A: No. Backlash and bearing preload are set at assembly. Fit the unit, fill with the specified oil grade, and check for leaks after the first few hours of operation.
Q: Is this a complete assembly or just the gear set?
A: It is supplied as a complete reduction assembly - housing, ring gear, planet gears, carriers, bearings, seals and output shaft - so nothing has to be transferred from the old unit.
Q: How do I confirm this JCB220 unit fits my machine?
A: Compare the mounting bolt pattern, the output spline and the overall height against the unit on your machine, and check the model plate. If the numbers differ, send us a photo of the plate and we will confirm the correct variant.
Q: What usually causes these reduction units to fail?
A: Contaminated oil and lost bearing preload. Once dust enters through a worn seal, the bearings loosen, the gear mesh misaligns and the unit starts to whine and overheat within a few hundred hours.
Q: Which oil should I use after installation?
A: Use the grade listed in the machine service manual for the final drive or swing reduction. Overfilling causes heat; underfilling causes immediate bearing damage, so fill to the level plug.
Q: Can this unit be used as an upgrade on an older machine?
A: Where the mounting pattern and spline match, the later specification can be fitted to earlier machines. Confirm the interface dimensions with us before ordering.
Q: Why Choose RITO?
A: Listed Factory
Stable&Reliable Quality
OEM Factory for Chinese Top Excavator Brands
Supplier to Fortune 500 Companies
A standard excavator that swings or travels slowly, whines under load or leaks oil from the travel reduction hub is usually telling you the JCB360 JS360 Travel Gearbox has reached the end of its service life. Worn planet gears, a scored ring gear and a failed bearing set all waste torque before it reaches the track or the upper structure. RITO supplies this JCB360 JS360 Travel Gearbox as a ready-to-fit assembly, so the machine is back to full tractive effort and travel speed without a rebuild.
View More
A HD1430JCB330 Travel Motor that has covered high hours will usually show it through noise on travel, oil weeping past the seals and a drop in tractive effort and travel speed. Replacing the whole assembly is faster and more predictable than replacing gears one by one. RITO supplies the complete HD1430JCB330 Travel Motor for standard excavators, tested for backlash and preload before packing.
View More
A JCB220 Travel Gearbox that has covered high hours will usually show it through noise on travel, oil weeping past the seals and a drop in tractive effort and travel speed. Replacing the whole assembly is faster and more predictable than replacing gears one by one. RITO supplies the complete JCB220 Travel Gearbox for standard excavators, tested for backlash and preload before packing.
View More
A standard excavator that swings or travels slowly, whines under load or leaks oil from the swing reduction hub is usually telling you the JCB240 Swing Gearbox has reached the end of its service life. Worn planet gears, a scored ring gear and a failed bearing set all waste torque before it reaches the track or the upper structure. RITO supplies this JCB240 Swing Gearbox as a ready-to-fit assembly, so the machine is back to full swing torque and swing speed without a rebuild.
View More
Dealing with oil weeping down your control levers or experiencing sticky, erratic joystick responses that ruin your grading precision? Cracked pilot seals leak oil straight into the cabin console, creating a mess while dropping control circuit pressure and delaying attachment responses. Stop pilot valve performance fade by packing your joystick bases with the high-resiliency RITO VPKIT seal kit immediately.
View More
A PC60-1 Swing Gearbox that has covered high hours will usually show it through noise on swing, oil weeping past the seals and a drop in swing torque and swing speed. Replacing the whole assembly is faster and more predictable than replacing gears one by one. RITO supplies the complete PC60-1 Swing Gearbox for standard excavators, tested for backlash and preload before packing.
View More
Maintenance teams running Caterpillar E311C, E311 and E312 excavators face declining swing torque, increasing hydraulic bypass, and premature reduction assembly wear under continuous heavy-load conditions. The 169-5549 swing gearbox resolves these issues with precision-engineered planetary reduction, consistent high-torque rotary output, and extended service intervals — enabling parts distributors and fleet operators to minimize equipment downtime and strengthen aftermarket inventory offerings.
View More
Hydraulic inconsistency in EX600H-5 class excavators can quickly reduce productivity during continuous mining cycles, especially when operating under high load conditions. The 9136529 / 0001284 main hydraulic pump assembly is engineered to stabilize A7VO250 variable displacement performance, ensuring steady pressure output and reliable power delivery for heavy-duty machine operation.
View MoreLeave A Message
Scan to wechat :
