Description
Splined Yoke 02 (Interfering Bolt) — Maximum-Security Bolt-Retained PTO End Yoke
The Splined Yoke 02-Interfering Bolt employs a through-bolt retention system that physically interferes with the PTO shaft groove, creating one of the most secure yoke-to-shaft connections available. Unlike push pin designs that can potentially disengage under extreme vibration, the interfering bolt requires deliberate wrench removal — making it the preferred choice for high-torque, safety-critical PTO applications. Available with Z6, Z21, and metric spline bores, this versatile yoke covers both 540 RPM and 1000 RPM configurations.
🔧 Technical Specifications
| Series | A(mm) | B(mm) | C(mm) | D(mm) | E(mm) | F (Spline) |
|---|---|---|---|---|---|---|
| 1.0502B/D/G | 22 | 54 | 93 | 23 | 21/22.8 | Z6/Z21/8-32×38×6 |
| 2.0502B/D/G | 23.8 | 61.3 | 102 | 21 | 21/22.8 | Z6/Z21/8-32×38×6 |
| 3.0502B/D/G | 27 | 70 | 108 | 21 | 21/22.8 | Z6/Z21/8-32×38×6 |
| 5.0502B/D/G | 30.2 | 80 | 108 | 21 | 21/22.8 | Z6/Z21/8-32×38×6 |
| 6.0502 B/D/G/C/E | 30.2 | 92 | 118 | 21-23 | 21-26 | Z6/Z21/8-32×38×6/1 3/4″Z6/Z20 |
| 7.0502B/D/G | 30.2 | 106.5 | 130 | 25 | 21/22.8 | Z6/Z21/8-32×38×6 |
| 8.0502 B/D/G/C/E | 35 | 106.5 | 130 | 25 | 21-26 | Z6/Z21/8-32×38×6/1 3/4″Z6/Z20 |
⭐ Key Features & Benefits
🔒 Through-Bolt Mechanical Lock
Bolt threads through yoke body into PTO shaft groove — virtually eliminates accidental disconnection under any vibration.
⚙ Triple-Spline Configuration
Z6 (540 RPM), Z21 (1000 RPM), and 8-32×38×6 metric within the same series range.
💪 Rated for Heavy Implements
Bolted connection withstands higher axial and radial loads than spring-based push pins.
🔧 Tool-Required Removal
Wrench-actuated bolt adds safety layer — no accidental separation during operation.
🔥 Hardened Bolt & Groove
Both retention bolt and shaft groove are hardened to prevent wear over years of use.
🛡 Five Variants per Series
B (Z6), D (Z21), G (8-32), C (1 3/4″ Z6), E (1 3/4″ Z20) cover every PTO standard.
🔄 Compatibility Information
Fits all standard PTO output shafts: 1 3/8″ Z6 (540 RPM), 1 3/8″ Z21 (1000 RPM), 8-32×38×6 metric, and 1 3/4″ Z6/Z20 (heavy-duty 1000 RPM). Compatible with all major tractor brands including John Deere, Case IH, New Holland, Massey Ferguson, Fendt, CLAAS, and Kubota.
📚 Selection Guide
Step 1 — Identify Your PTO Standard: Z6 = 540 RPM standard; Z21 = 1000 RPM standard; metric 8-32 for certain European models.
Step 2 — Select Bolt Engagement: Ensure your PTO shaft has the groove for interfering bolt engagement. Most modern tractors support this.
Step 3 — Match Series to Cross Kit: A dimension determines cross kit size. Series 1 (22mm) to Series 8 (35mm).
🌾 Typical Application Scenarios
Large rotary cutters, brush hogs, stump grinders requiring maximum connection security
Hillside mowing, rough paddock operations where vibration is extreme
High-speed PTO drives for large manure spreaders, high-capacity pumps
Equipment where accidental PTO disconnection poses serious safety risks
🛠 Installation & Usage Guide
- Select correct spline variant: Confirm B, D, G, C, or E designation matches your tractor PTO output.
- Slide onto PTO shaft: Align splines and push yoke onto tractor PTO stub shaft.
- Insert and tighten bolt: Thread the interfering bolt through the yoke body until it seats in the shaft groove. Torque to 25-35 Nm.
- Verify bolt engagement: Attempt to pull yoke off shaft — it should be completely locked.
- Assemble drive shaft: Connect cross kit, PTO tube, and implement-end yoke.
- Safety shield: Install PTO safety guard before operation.
❓ Frequently Asked Questions
🌟 Customer Reviews
Greg A. — 🇦🇺 Australia
“The bolt gives us peace of mind on rough paddock conditions. No chance of accidental disconnection.”
Werner S. — 🇩🇪 Germany
“Excellent build quality. Z21 variant works perfectly on 1000 RPM PTO for our large balers.”
Paulo M. — 🇧🇷 Brazil
“Solid yoke with reliable bolt retention. Good value compared to European alternatives.”
Ryan C. — 🇺🇸 United States
“Much more secure than push pins for our heavy-duty brush cutter application.”
Jacques M. — 🇫🇷 France
“High-quality spline machining and smooth bolt mechanism. Using these on vineyard PTO shafts.”
⚖ Our Product vs. Inferior Alternatives
| Feature | Ever-power | Low-Cost Alternatives |
|---|---|---|
| Retention Security | Mechanical bolt — wrench required | Spring pin — can pop out |
| Vibration Resistance | Bolt unaffected by vibration | Pin can disengage under severe vibration |
| Multi-Spline Options | Z6, Z21, metric, 1 3/4″ options | Often Z6 only |
| Spline Quality | Precision broached to DIN/ASAE | Roughly cut |
| Bolt Hardness | Grade 8.8+ hardened bolt | Soft fastener |
| ISO Certification | ISO 9001:2015 certified | No certification |
🔗 Related Products & Accessories
Replacement Interfering Bolts
Grade 8.8 retention bolts in all sizes
Cross Kits for All Series
Universal joint bearing kits
1000 RPM PTO Shafts
Complete PTO shaft assemblies for high-speed applications
PTO Safety Shields
Rotating guard assemblies
Explore our full PTO shaft components catalog for matching parts.
✅ Certifications & Quality Standards
- ISO 9001:2015 Production Certified
- ASAE/ISO Spline Standard Compliance
- Bolt Tensile Strength Testing
- Spline Hardness Verification
- CMM Dimensional Reports
🏭 Why Choose Ever-power?
Our splined yoke production facility operates 12 dedicated CNC spline broaching machines running three shifts, producing bolt-type splined yokes with consistent sub-0.02mm tolerances. With over two decades in the PTO component industry, we have supplied bolt-retention yokes to OEM assemblers and aftermarket distributors across 50+ countries. Our bolt-type yokes are the top choice for customers who prioritize connection security above all else.
Secure Your PTO Connection — Order Bolt-Type Yokes
Request pricing on interfering bolt splined yokes. Multi-spline variants available from stock.
Visit ptoparts.top for our full product catalog
