Bush below gear pinion suitable for JCB 3CX 4CX 405988
GX-AFTER

Bush below gear pinion suitable for JCB 3CX 4CX 405988

Catalog number:808/00302A Nr OEM:808/00302 Manufacturer:GX-AFTER
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Bronze Slew Pinion Bushing (Post-VIN 405988) suitable for JCB - 808/00302

Technical Specification and Compatibility

A high-quality bronze bushing 808/00302 by GX-AFTER. This is a key slide bearing fitted under the slew pinion gear of the rear arm. This model is for JCB 3CX and 4CX loaders manufactured after VIN 405988, which were still equipped with the old rack and pinion slew type (before the switch to the slew ring). It features an internal grease groove and one hole for grease distribution.

Part Number: 808/00302
Type: Bronze Bushing / Slew Pinion Bush
Material: Bronze
Compatibility: JCB 3CX, 4CX (Post-VIN 405988, rack slew type)
Height: 25.1 mm
Outer Diameter: 88 mm
Inner Diameter: 83 mm
Lubrication: Internal, 1 hole

GX-AFTER is the smart choice for your machine. We provide high-class replacements that combine excellent quality with an attractive price. Each part is carefully verified to ensure full compatibility and reliability you can depend on.

Features of the 808/00302 Bronze Bush

High Friction Resistance: Bronze material provides excellent sliding properties and prevents pinion seizure.
Eliminates Slew Play: Precise dimensions (88x83x25.1 mm) eliminate slew pinion play, restoring arm accuracy.
Effective Lubrication: Internal groove and single hole ensure even grease distribution across the working surface.
Fits Transitional Models: Specifically designed for JCB 3CX/4CX (post-VIN 405988) still using the rack slew system.

Application in machinery

Brand Type / Series / Model
JCB Backhoe Loaders: 3CX, 4CX (models Post-VIN 405988, rack and pinion slew type only)

The list above is for reference. It is crucial to verify the VIN (post-405988) and slew type (rack).

Related Parts and Hardware

This bush works directly with the slew pinion gear and the slew rack. When replacing, we recommend checking the teeth on both components and replacing the upper and lower carriage slide bushes.

⚠️ Safety Warning

A worn slew pinion bush causes excessive play in the slew mechanism. This leads to violent jerking of the arm when starting/stopping slew, making precise digging difficult. In extreme cases, the play can lead to damage to the teeth on the rack and pinion, a very expensive repair.

Part Role in the Machine and Failure Diagnostics

The 808/00302 bronze bush is the slide bearing for the slew pinion shaft in older backhoe loaders (rack and pinion slew). It is seated in the carriage (kingpost), and the pinion shaft rotates inside it. Its job is to precisely guide the pinion gear and absorb the high radial forces during the slew movement.

  • › Excessive play in the slew (arm "rocks" at the pivot).
  • › Metallic knocking or grinding noises when slewing.
  • › Uneven slew operation, "skipping" teeth on the rack.
  • › Visible wear or ovalization of the bush upon disassembly.
  • › Bronze filings in the grease around the slew mechanism.

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🔧 Expert Guide: Key Installation Tips

  1. Confirm VIN: Ensure your machine's VIN is higher than 405988 and it still uses the old rack and pinion slew system.
  2. Clean the Housing: Thoroughly clean the bore in the carriage/kingpost of rust and dirt before pressing in the new bush.
  3. Press Fit: The bush must be pressed in squarely using a press or suitable puller. Do not hammer directly on the edge of the bush.
  4. Align Grease Hole: It is critical to align the grease hole in the bush with the grease channel/nipple in the housing during installation.
  5. Lubrication: Generously lubricate the bush and pinion shaft with grease before final assembly.

Frequently Asked Questions (FAQ)

What is the difference between this (808/00302) and 808/00081?

Both bushes are for the "old slew type", but they have different dimensions and fit different VIN ranges. 808/00081 (115x102x27 mm) fits machines UP TO VIN 405988. 808/00302 (this product) (88x83x25.1 mm) fits machines AFTER VIN 405988. They are not interchangeable.

I have a 3CX from 2005. Will this bush fit?

No. This bush is only for models (approx. up to 1997) that had the rack slew system. A 2005 machine has the newer slew ring (turntable) design and does not use this part.

What are the dimensions of this bush?

The dimensions are: 88 mm (Outer Diameter) x 83 mm (Inner Diameter) x 25.1 mm (Height).

Question mark

Do you have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you select the right part to get your equipment back to work as quickly as possible.

808/00302A
808/00302
0.15 kg

Data sheet

SUITABLE FOR
JCB
MACHINE TYPE
BACKHOE LOADER
OEM NUMBERS
808/00302
OUTER DIAMETER (MM)
88
INNER DIAMETER (MM)
83
HEIGHT (MM)
25,1
BUSH WITH COLLAR
NO

Specific References

MPN
808/00302
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Bush below gear pinion suitable for JCB 3CX 4CX 405988

Catalog number: 808/00302A
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Manufacturer

  • Serwis Kop Sp. z o.o. Sp. K.
  • Podkarpacka 57a
  • 35-082 Rzeszów
  • Poland
  • [email protected]
  • +48178643100

Responsible person

  • Serwis Kop Sp. z o.o. Sp. K.
  • Podkarpacka 57A
  • 35-082 Rzeszów
  • Poland
  • [email protected]
  • +48178643100
gross price

29.95 zł

net price
24,35 zł
Available in large quantity Temporarily unavailable
24,35 zł
net price

29.95 zł

gross price
Nie możesz dodać więcej produktów
  • You will receive 2 points, it gives you 0.80 zł
  • Lowest price from 30 days before the discount: 29.95 zł
    PRODUCT SPECIFICATION
    SUITABLE FOR
    JCB
    MACHINE TYPE
    BACKHOE LOADER
    OEM NUMBERS
    808/00302
    OUTER DIAMETER (MM)
    88
    INNER DIAMETER (MM)
    83
    HEIGHT (MM)
    25,1
    BUSH WITH COLLAR
    NO

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    WE OFFER PRODUCTS OF THE BEST BRANDS

    SERWIS KOP Sp. z o.o. Sp.k.
    ul. Podkarpacka 57A, 35-082 Rzeszów
    NIP: 813-352-97-49 REGON: 180286726

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