描述
Plain Bore Yoke Type D (Keyway & Clamp Bolt) — Maximum-Strength Clamped PTO Yoke for Extreme Loads
这 Plain Bore Yoke Type D-Keyway & Clamp Bolt provides the absolute maximum shaft retention force of any plain bore yoke in our range. A precision split in the yoke body allows a through-bolt to compress the bore around the shaft, generating friction grip equivalent to several tons of radial force. Combined with the keyway for positive rotational drive, this creates a virtually immovable connection suitable for the most brutal operating conditions: stone crushers, stump grinders, industrial shredders, and any equipment subjected to extreme shock loading or torque reversals.
🔧 技术规格
| 系列 | A(mm) | B(mm) | C(mm) | D（毫米） | E(mm) | F(mm) | G(mm) |
|---|---|---|---|---|---|---|---|
| 1.05D20-D32 | 22 | 54 | 93 | 21 | 6-10 | 12.8-19.3 | 20-32 |
| 2.05D25-D32 | 23.8 | 61.3 | 102 | 21 | 8-10 | 15.8-19.3 | 25-32 |
| 3.05D25-D35 | 27 | 70 | 108 | 21 | 8-12 | 15.8-20.8 | 25-35 |
| 4.05D25-D38 | 27 | 74.6 | 108 | 21 | 8-10 | 15.8-22.3 | 25-38 |
| 5.05D32-D40 | 30.2 | 80 | 108 | 21 | 10-12 | 19.3-23.3 | 32-40 |
| 6.05D30-D50 | 30.2 | 92 | 118 | 21 | 8-14 | 18.3-28.8 | 30-50 |
| 7.05D30-D40 | 30.2 | 106.5 | 130 | 25 | 8-12 | 18.3-23.3 | 30-40 |
| 8.05D30-D45 | 35 | 106.5 | 130 | 25 | 8-14 | 18.3-26.3 | 30-45 |
⭐ 主要特点和优势
💪 Maximum Clamping Force
Split-body bolt compression generates tons of radial grip — the strongest retention of any plain bore yoke type.
🔑 Keyway + Clamp Dual System
Keyway handles primary torque; clamp bolt adds friction grip that resists shock loads, reversals, and vibration.
⚖ Shock & Reversal Rated
Designed for applications with sudden torque spikes and load reversals that would loosen set screws or walk out circlips.
🔒 Controlled Clamp Release
Connection is only released by deliberate bolt loosening — no accidental separation possible under any operating condition.
🔧 Split-Body Engineering
The precision-machined split and bolt channel maintain concentricity under clamping load, avoiding bore distortion.
🔥 Fatigue-Rated Clamp Zone
Clamp area is specially heat-treated to resist fatigue cracking from repeated high-stress clamping cycles.
🔄 兼容性信息
Fits keyed cylindrical shafts in 20-50 mm range. The preferred choice for extreme-duty connections on industrial and agricultural equipment from all manufacturers. Particularly specified for shredders, crushers, grinders, and heavy forestry equipment.
📚 选择指南
Choose Type D when: Your application involves impact loads, torque reversals, or extreme vibration that defeats lighter retention methods (pins, set screws, circlips).
Clamp Bolt Torque: Tighten progressively to the recommended torque (varies by series, typically 40-80 Nm). Do not exceed — bore distortion can result.
🌾 典型应用场景
Stone crushers, shredders, industrial grinders, recycling equipment
Stump grinders, log splitters, wood chippers, bark processors
Equipment with bidirectional rotation or sudden torque reversals
Vibratory screens, compactors, and demolition equipment
🛠 安装和使用指南
- Loosen clamp bolt fully: Open the split bore for shaft insertion.
- Install key and slide yoke: Seat key, align keyway, push yoke to position.
- Progressively tighten clamp bolt: Tighten in stages to recommended torque. Verify concentricity.
- Check for bore distortion: Rotate the shaft — it should turn smoothly with no binding.
- Install cross kit: Mount universal joint and PTO components.
- Periodic checks: Re-torque clamp bolt every 50 hours in extreme applications.
❓ 常见问题解答
🌟 顾客评价
Brett A. — 🇦🇺 澳大利亚
“Solved our chronic yoke-slipping problem on a rock crusher PTO. The clamp bolt grip is extraordinary — this yoke is not going anywhere.”
Karl-Heinz D. — 🇩🇪 德国
“We specify Type D for all our forestry equipment PTO connections. The shock load resistance is unmatched.”
Thiago P. — 🇧🇷 巴西
“Heavy-duty yoke for our sugarcane shredder. The split-clamp design is well-engineered and holds under severe conditions.”
Larry F. — 🇺🇸 美国
“Nothing else would hold on our stump grinder PTO shaft. Type D clamp bolt solved the problem permanently.”
Philippe M. — 🇫🇷 法国
“Industrial-grade retention. The fatigue-rated clamp zone is a thoughtful engineering detail that gives us confidence in critical applications.”
⚖ 我们的产品与劣质替代品对比
| 特征 | 永恒的力量 | 低成本替代方案 |
|---|---|---|
| Retention Strength | Maximum — tons of radial clamp force | Light friction or pin shear |
| Shock Load Resistance | Designed for extreme impacts | Prone to loosening |
| Torque Reversal | Clamp holds through reversals | May slip on reversal |
| Bore Concentricity | Precision split maintains roundness | No clamp feature |
| Quality | ISO 9001, fatigue-rated | No qualification |
| Application Range | Extreme industrial & agricultural | Light to medium duty only |
🔗 相关产品及配件
Grade 12.9 Clamp Bolts
High-tensile replacement bolts
Anti-Seize Compound
For clamp bolt threads
Type C Yokes
Lighter-duty keyway + set screw alternative
Heavy-Duty Cross Kits
Matching u-joints for extreme applications
探索我们的完整内容 PTO轴组件目录 用于匹配零件。
✅ 认证与质量标准
- ISO 9001:2015认证
- Clamp Force Verification Testing
- Split-Body Concentricity Reports
- Fatigue Testing (10,000 clamp cycles)
- Grade 10.9+ Bolt Certification
🏭 为什么选择 Ever-power？
Type D clamp bolt yokes require the most sophisticated manufacturing in our plain bore range — precision split machining must maintain perfect concentricity under clamping load. We invested in wire-EDM cutting capability specifically for this product, ensuring split surfaces that mate perfectly and distribute clamping force evenly. Our Type D yokes are the retention method of choice for three major European forestry equipment OEMs.
The Strongest Plain Bore Connection Available
When nothing less than maximum grip will do, Type D clamp bolt yokes deliver. Contact us for extreme-duty applications.
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