Description
| Product Specifications | |
|---|---|
| Part Number / Series | L-CB-0001 to L-CB-0028 |
| Size / Range | Various bore sizes |
| SKU Count | 28 |
| Material | Steel / cast iron |
| Surface Finish | Machined bare metal |
| Heat Treatment | Standard |
| OE Reference | – |
| Compatible Brands | John Deere, Massey Ferguson, New Holland, Kubota, Case IH, Fendt, Claas |
Part No: L-CB-0001 to L-CB-0028 | Size: Various bore sizes | Finish: Machined bare metal
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Product Overview
The Conversion Bushing (L-CB-0001 to L-CB-0028) is a press-fit bore adapter for tractor three-point linkage lower link balls, covering 28 sizes across the Category I, II, and III dimensional ranges. The bushing is fitted into the lower link ball socket to reduce or adapt the bore diameter, allowing an implement with a different category ball specification to be connected to a tractor without modifying either the tractor linkage or the implement frame.
Category mismatches between tractor and implement linkage are a common practical problem, particularly where operators run a large implement on a smaller tractor or where implements sourced from different markets carry a different category rating. The Conversion Bushing provides a machined-steel solution that maintains the dimensional integrity of the connection without improvised adaptations that can create safety risks.
Material Specification and Technical Detail
The L-CB series is produced from steel or cast iron depending on the size and bore load requirement. All bushings are machined to close tolerances to ensure a firm press fit in the receiving bore and a smooth running fit on the mating ball. The machined bare metal finish is standard for press-fit components; no plating is applied that could affect the interference fit dimensions.
The 28 sizes in the series cover the main bore conversion combinations used across Category I to II and II to III adaptations, including the most common dimensional pairings found on European and North American tractor and implement equipment. Dimensional data for each part number is available on request to confirm suitability before ordering.
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Application and Operating Environment
The primary application is adapting a Category II implement to a Category I tractor three-point hitch, or a Category III implement to a Category II tractor. The bushing is pressed into the lower link ball socket of the implement, reducing the bore to match the smaller tractor ball diameter. This allows the tractor and implement to be connected without removing or replacing the implement lower link balls.
Secondary applications include bore repair on worn lower link ball sockets, where the socket has worn oversize and a bushing is pressed in to restore the correct bore diameter. Compatible with John Deere, Massey Ferguson, New Holland, Kubota, Case IH, Fendt, and Claas tractor and implement linkage systems across the Category I, II, and III range.
OEM Compatibility and Cross-Reference
The L-CB series is dimensionally referenced against the ISO 730 standard for three-point linkage components, which defines the ball and socket dimensions for each Category rating. Compatibility with John Deere, Massey Ferguson, New Holland, Kubota, Case IH, Fendt, and Claas equipment is confirmed by measurement against OEM hardware samples.
Dealers stocking this series can handle the most common category adaptation requirements from a single product line, without needing to source separate adapter components from individual OEM parts catalogues. Our 3-point hitch kit consolidates the most frequently replaced linkage components into a single order.
Installation Procedure
Follow the steps below for correct installation of the Conversion Bushing in standard agricultural coupling applications.
Measure the Socket Bore
Before ordering, measure the existing lower link ball socket bore diameter accurately. Select the bushing size that provides the required bore reduction with the correct interference fit for press installation.
Prepare the Socket
Clean the socket bore and remove any burrs, corrosion, or paint that would prevent the bushing from seating fully. A light application of assembly lubricant on the outer surface of the bushing aids installation without affecting the press fit once set.
Press the Bushing In
Use a hydraulic press or suitable drift and hammer to drive the bushing squarely into the socket bore. Do not tilt the bushing during installation as this can score the bore and prevent full seating.
Verify Seating and Bore
Confirm the bushing is fully seated and flush with or below the socket face. Measure the finished bore diameter to confirm it matches the target ball size before connecting the implement.
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Why Choose This Supplier
Direct Manufacturer Supply
All products sourced directly from controlled manufacturing facilities. Consistent quality batch to batch without distributor markup layers.
Verified Dimensional Conformance
Critical dimensions verified against OEM samples and published standards before catalogue listing. Data available on request.
Mixed-SKU Order Capability
Different part numbers and sizes combined in a single shipment. No per-SKU minimum quantities for standard stock items.
Technical Support
Part number cross-referencing and compatibility verification on request. Contact [email protected] for product-specific enquiries.
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Related Products
The following products are frequently ordered alongside the Conversion Bushing for complete linkage system maintenance and service kits.
Conversion Bushing
28 sizes, Cat I/II/III bore adaptation, press-fit
Tines Bushing
Hardened steel, rotary tiller and rake pivot
Linch Pins Standard Wire
23 sizes, OA 4.5-12 mm, 65Mn spring steel
Hair Pins
35 sizes, OA 1.8-8 mm, universal pin retention
Hitch Pins H-Type
32 sizes, OA 9.5-32 mm, pre-fitted hair pin
Top Link Assembly
S355 steel, Cat I/II/III, ISO 730 compliant
Customer Feedback
“The Conversion Bushing fitted our Category I to II conversion requirement exactly. We service a mixed fleet of compact and mid-range tractors for our dealer network, and stocking this range has eliminated the need to hold OEM-coded bushings for each brand separately.”
Sven L. – Sweden
“Good dimensional accuracy on the Conversion Bushing. Press fit was correct without any reworking. We have fitted these to Kubota and Massey Ferguson equipment over two seasons and have had no issues with fit or wear at the bore interface.”
Antti K. – Finland
“Reliable supply and consistent quality. The Conversion Bushing arrived well-labelled by size, which matters when you are managing a large parts inventory across multiple product lines. Lead time from order to delivery was within the stated window.”
Willem D. – Netherlands
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Send us your part number, quantity, and destination country. We reply within one business day with pricing and lead time.
International Agricultural Parts Supplier | gear-drive.net
