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Replacing replacement of parts for Kubota
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Drive shaft
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TC220-26720 Rear Axle Shaft 11TX16TX24T 238mm Fits For Kubota Tractor
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TC220-26710 Rear Axle Shaft 11TX16TX24T 198mm Fits For Kubota Tractor
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T0070-12450 Front Axle Shaft 24TX24TX515mm Fits For Kubota Tractor
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TC220-14630 Front Middle Drive Shaft 14TX14TX1049mm Fits For Kubota
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T0070-12460 Front Axle Shaft 24TX24TX323mm Fits For Kubota
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3C301-28160 Gear Shaft Fits For Kubota Tractor
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3C311-41320 Gear Shaft 16TX16T Fits For Kubota Tractor
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3C301-28060 Low Sliding Gear Shaft Fits For Kubota Tractor
High-Performance Transmission Shafts
Engineered for Kubota L, M, and B Series. Our PTO drivelines ensure efficient power transmission between your tractor and critical implements like gearboxes and tillers.
Technical Specifications
Standardized Data for Kubota Compatible PTO Transmission Shafts
| Parameter Item | Kubota Standard Performance Data |
|---|---|
| Spline Count & Diameter | 1-3/8" Z6 (Standard 6-Spline) / 1-3/8" Z21 (Fine Spline) |
| Series Classification | Series 1, Series 4, Series 6 (Bondioli & Pavesi Compatible) |
| Cross Journal Dimensions | 22x54mm / 27x74.6mm / 30.2x80mm |
| HP Capacity at 540 RPM | 16 HP - 64 HP (Continuous Duty) |
| Tube Profile Shape | Lemon Profile / Triangular / Star-shaped High Torque Tube |
| Overall Compressed Length | 510mm / 710mm / 810mm / 1010mm (Adjustable) |
| Safety Mechanism | Shear Bolt (SB) / Friction Slip Clutch (FF) / Ratchet Clutch |
| Maximum Angular Deflection | 25° (Continuous) / 80° (Short duration/Wide angle) |
| Telescopic Overlap Requirement | Minimum 1/3 of total tube length |
| Shielding Compliance | ISO 5674 Standard Safety Guarding with UV Resistance |
Understanding the Transmission Shaft
The transmission shaft, commonly known as the PTO Shaft, is the mechanical bridge that transfers rotational energy from the tractor's rear output to the implement's gearkasse. Without a precision-balanced shaft, energy is lost through vibration, potentially damaging the tractor's internal drive gears or the implement's mounting ears (Ear).
Key Component Analysis
PRR Tractor Part specializes in high-quality aftermarket shafts. While not original Kubota parts, our products are built to the same (or superior) material grades. We offer 100% compatibility with OEM mounting points at a price that maximizes your operational profit.
Working Principle: The Physics of Motion
The transmission shaft converts the rotational energy of the tractor engine into linear mechanical work. As the tractor's PTO output spins, the yokes transfer this torque through the universal joints. These joints allow for a constant velocity even when the shaft is at an angle. The energy then travels through the telescopic tubes into the implement's gearkasse, where it is further modulated for speed or torque.
Why Choose PRR Replacement Shafts?
- ✔ Tougher Steel: We use cold-drawn 20CrMnTi for journals to resist wear.
- ✔ Precision Balancing: Eliminates vibration that kills gearbox bearings.
- ✔ Factory-Direct Value: Get OEM-level durability at 50% of the dealer's markup.
Maintenance & Care
Regular maintenance prevents 90% of driveline failures. Follow this routine:
How to Select the Right Shaft
Refer to our Om os page to see our quality standards before buying:
- Measure the HP: Match the shaft series to your tractor's PTO output.
- Identify Splines: Count the teeth on your PTO (usually 6).
- Check the Length: Measure from yoke groove to yoke groove in both compressed and extended positions.
- Determine Safety Type: Does your implement need a slip clutch (for tillers) or a shear bolt (for mowers)?
Ofte stillede spørgsmål
Can I use a Series 4 shaft on a tractor that originally came with Series 1?
Yes, you can upgrade to a higher series for more durability. However, never downgrade to a lower series, as the torque will likely twist the tubes or break the universal joints.
What causes a transmission shaft to vibrate excessively?
The most common causes are worn-out cross journals, bent telescopic tubes, or the shaft operating at an extreme angle (over 25 degrees). Vibration can eventually destroy your gearkasse input seal.
How do I know if I need to cut my PTO shaft to a shorter length?
When the implement is raised, there must be at least 1-2 inches of clearance between the ends of the tubes. If the tubes "bottom out," they will exert massive pressure on the tractor's internal drive.
Why does my shear bolt keep snapping?
Shear bolts are designed to break to protect your gearaksel and gearbox. If it snaps frequently without hitting an obstruction, check if you are using the correct grade of bolt (standard is usually Grade 8.8).
Is a slip clutch better than a shear bolt?
A slip clutch is ideal for machines that encounter frequent heavy resistance (like tillers), while shear bolts are more cost-effective for machines like finish mowers.
Can I replace just the universal joint or do I need a whole new shaft?
If the tubes are straight and the yokes are undamaged, replacing just the cross journal is a very economical repair. We stock all individual components for Kubota series.
How do I identify a Kubota 21-spline shaft?
Simply count the teeth on the shaft end. 21-spline is a "fine" spline used for high-HP (1000 RPM) applications, whereas the standard 540 RPM tractors use 6-spline.
Does the PRR shaft come with a safety chain?
Yes, all our shafts include safety chains for the plastic shield. These must be attached to the tractor and implement to prevent the shield from spinning.
How can I get technical help with installation?
Please visit our Kontakt os page. Our engineers can guide you through measuring and cutting your shaft via email or phone.
Do you offer bulk pricing for repair shops?
Yes, we offer wholesale rates for bulk orders of transmission shafts, gearboxes, and other tractor parts. Contact sales for a customized quote.
