PTO Shaft for New Holland Disc Mower Discbines

Product Overview

New Holland Discbine disc mowers are among the most common mowing implements on Korean dairy and hay farms. Models 1431, 1432, and the newer H6000 series combine disc cutting technology with a conditioning roller system that speeds crop dry-down. Each of these models requires a specific PTO shaft configuration that matches the mower's driveline geometry, PTO speed, and overload protection requirements. The PTO Shaft for New Holland Disc Mower Discbines covers every configuration used on these machines.

What makes Discbine PTO shaft selection more complex than standard implements is the number of available configurations. New Holland offers the Discbine with different joint types (standard, CV, double CV), different driveline sizes (35N, 55N, H8), and different PTO speeds (540, 1000, and dual 540/1000). The PTO Shaft for New Holland Disc Mower Discbines is stocked in all these variations so Korean operators can find the exact match for their specific Discbine model and tractor combination.

Supported Discbine Models

The PTO Shaft for New Holland Disc Mower Discbines covers Discbine 1431 and 1432 (center-pivot models), as well as the H6730, H6740, and H6750 models in the current H-series lineup. Primary part reference is 14656853 for the 1431/1432 complete assembly, with 82 and 83 prefix variants for half-shaft orders.

Configuration Reference Table

The table below maps each Discbine model to the correct PTO Shaft for New Holland Disc Mower Discbines configuration. The joint type and driveline size are the primary selection criteria.

All implement-end connections use 1.5" x 23 spline interface. If your Discbine model isn't listed, provide the serial number and we'll cross-reference the correct PTO Shaft for New Holland Disc Mower Discbines configuration.

Understanding 35N vs. 55N vs. H8 Driveline Sizes

The driveline size designation (35N, 55N, H8) determines the cross-bearing size, tube diameter, and torque capacity of the PTO Shaft for New Holland Disc Mower Discbines:

35N — Light to Medium Duty

Smaller cross-bearing kit, narrower tubes. Adequate for compact Discbine models running at 540 RPM on tractors under 70 HP. Available with standard U-joints, single CV joint, or square-profile tubes depending on the model year. The 35N is the most affordable PTO Shaft for New Holland Disc Mower Discbines option but has the lowest torque headroom.

55N — Standard to Heavy Duty

Larger cross-bearing kit with heavier tubes. Handles 70 to 100 HP tractors and higher-throughput mowing. The 55N is the most commonly specified driveline for Discbine 1431 and 1432 models sold in Korea, where operators often push the mower hard through thick grass and mixed forage crops.

H8 Double CV — Premium Configuration

The H8 double CV driveline uses two constant-velocity joints (similar to the Hesston/CaseIH 80x50 layout) for maximum angular range and vibration-free operation. Supports both 540 and 1000 RPM PTO speeds. This is the premium PTO shaft option for operators who need the smoothest possible power delivery on challenging terrain.

Shaft Length Limits and Overlap Rules

Disc mower PTO shafts have tighter length constraints than most other implements because the mower sits close to the tractor and the hitch geometry allows limited vertical travel. The PTO Shaft for New Holland Disc Mower Discbines must meet these overlap requirements at all operating positions:

• ▶ Minimum overlap: 150 mm of telescoping tube engagement at full extension (mower lowered)
• ▶ Maximum compression: tubes must not bottom out when the mower is raised to transport height
• ▶ If the shaft bottoms out during raising, it's too long and needs to be shortened
• ▶ If less than 150 mm overlap remains when lowered, it's too short and risks tube disengagement

Shortening if Needed

If the PTO Shaft for New Holland Disc Mower Discbines is too long for your setup, both inner and outer tubes must be shortened by the same amount. Use a bandsaw (not a torch) to make a clean, square cut. Deburr the cut ends with a file. We also offer custom-length shafts cut to your measurement at the factory.

Companion Products

Discbine Gearbox Connection

The implement end connects via a 1.5" x 23-spline interface to the Discbine's agricultural gearbox, which drives the disc modules and conditioning rollers. The gearbox converts PTO rotation to the high-speed disc blade rotation. Always inspect the gearbox input bearing when replacing the shaft.

Individual Replacement Parts

CV joint housings, cross-bearing kits, half-shaft assemblies (82 and 83 prefix), overload clutch plate kits, and safety shields are available individually. Half-shaft orders are popular for disc mower applications where only one end typically fails before the other.

Why This Shaft for Your New Holland Discbine

• ❖ Full range: 35N, 55N, and H8 double CV driveline sizes covering every Discbine model
• ❖ Standard, CV, and double CV joint options for varying terrain demands
• ❖ Both 540 and 1000 RPM configurations with jack-style 1.375-21 tractor spline
• ❖ OEM-equivalent to NH part 14656853 and derivatives at 30 to 45 percent lower cost
• ❖ Complete assemblies and half-shaft options for targeted, cost-effective repairs
• ❖ Custom-length cutting available for non-standard mounting distances
• ❖ CE and ISO 9001 certified with full batch traceability

Frequently Asked Questions

Which driveline size do I need for my Discbine 1431?

The 1431 is available with either 35N or 55N drivelines depending on the production year and equipment package. Check the tag on your existing shaft or the Discbine's operator manual. If unsure, send us the machine serial number and we'll cross-reference the correct PTO Shaft for New Holland Disc Mower Discbines specification.

What does the "jack style" tractor spline mean?

Jack-style refers to a yoke design where a removable spline sleeve can be pulled off and replaced with a different spline size without changing the entire yoke. It allows the same PTO Shaft for New Holland Disc Mower Discbines to adapt to different tractor PTO stubs by swapping just the spline insert.

Can I upgrade from a 35N standard joint to a 55N CV joint on my existing Discbine?

Usually yes, provided the implement-end connection (1.5" x 23 spline) is the same on your Discbine. The 55N CV shaft has a larger cross-bearing and smoother power delivery. Contact us with your model details and we'll confirm compatibility.

Does the H8 double CV option work at both 540 and 1000 RPM?

Yes. The H8 double CV is specifically designed as a dual-speed PTO shaft for New Holland Disc Mower Discbines that can operate at either PTO speed. The CV joints are speed-independent. Only the tractor-end spline needs to match your PTO speed setting.

What's the implement-end connection type on these Discbine shafts?

All PTO Shaft for New Holland Disc Mower Discbines configurations use a 1.5" x 23-spline implement connection. This matches the standard Discbine gearbox input shaft across 1431, 1432, and H-series models.

Is this shaft the same as the Hesston/CaseIH Discbine shaft?

No. While both are disc mower shafts, the New Holland Discbine uses different implement-end connections (1.5" x 23 spline vs. 1.5" round clamp) and different closed lengths. Always order the shaft matched to your specific mower brand and model.

Customer Reviews

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Jang Hyun-soo, Dairy Farm, Chungcheongnam-do (spring 2025)

"Discbine 1432 with 55N CV shaft. This replaced the original 35N standard joint. The upgrade to 55N CV was noticeable immediately: smoother operation on our hilly pastures and the CV joint eliminated the vibration we used to get at steep angles. Well worth the upgrade cost."

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Kim Hae-won, Hay Contractor, Gangwon-do (late 2024)

"We run three Discbine 1431 mowers for contract mowing. All three now use Ever-Power 55N CV shafts. Consistent quality across all units, and the pricing let us equip the entire fleet for less than the NH dealer wanted for two shafts."

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Lee Dong-jun, NH Equipment Dealer, Daejeon (early 2025)

"I stock the 35N and 55N versions for walk-in Discbine owners. The part numbers cross-reference correctly and the fit is exact. Several customers have come back for their second and third shafts after the first one proved out. That repeat business tells me the quality is right."

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Oh Soo-jin, Organic Hay Producer, Jeolla-do (mid 2024)

"Discbine H6740 with the H8 double CV option at 1000 RPM. The double CV is essential for our terrain; the mower head swings through a wide arc and the old standard shaft couldn't keep up. The H8 handles the full range of motion without any vibration. Three mowing seasons without bearing replacement."

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Baek Seung-woo, Municipal Parks, Gyeonggi-do (fall 2024)

"Our parks department runs Discbine 1432 mowers on public green spaces. We needed to shorten the shaft by about 80 mm for a non-standard hitch setup. Ever-Power's team advised on the cut procedure and confirmed the overlap would still be safe. Cut it with a bandsaw, deburred the ends, and it works perfectly."

Packing and Shipping