説明
Series 4
1-3/8″ 6-Spline (540 rpm)
27×74.6 mm Cross Kit
Quick Release Push-Pin
20CrMnTi Forged Steel
CE認証取得済み
最小注文数量1個 — LGPD対応
Series 4 Z6 Quick Release PTO Yoke — Compatible Shaft Series
| Compatible Shaft | Series Type | クロスキット | HP範囲 |
|---|---|---|---|
| T4 | T Series (Triangular) | 27×74.6 mm | 28–45 hp |
| L4 | L Series (Lemon) | 27×74.6 mm | 28–45 hp |
| G4 | G Series (Wide Angle CV) | 27×74.6 mm | 28–45 hp |
概要
製品説明
Series 4 Quick Release Splined Yoke is the most widely used PTO yoke specification in the global agricultural market. It is the tractor-end connection standard for rotary cutters, brush hogs, finish mowers, and general-purpose implements on 28–45 hp tractors — the dominant tractor class in commercial farming worldwide. The 1-3/8 inch 6-spline bore fits every standard Z6 540 rpm PTO stub, and the 27×74.6 mm cross-kit seat is compatible with all T4, L4, and G4 series shafts.
The Series 4 push-pin quick release design uses a spring-loaded pin with a retention collar. Pressing the collar allows the pin to retract; releasing it allows the pin to spring back into the engagement groove on the PTO stub. The engagement is audible and tactile — a positive click confirms correct seating. The design is deliberately simple: no keys, no tools, and no secondary locking mechanism that might be overlooked in field conditions.
Series 4 Z6 is Ever-Power Drive Line’s highest-volume yoke stock item. It is shipped to Brazil, Argentina, Paraguay, and Chile regularly as both individual replacement units and in bulk packing for distributor stock. For distributor and dealer pricing, contact Ever-Power Drive Line.
Quick Release Mechanism — How It Works
The push-pin spring-loads into the PTO stub engagement groove. Press the collar to release.
Push Collar Forward
Press the spring-loaded collar toward the yoke body. This retracts the push-pin from its engagement position, freeing the bore to slide onto the PTO stub.
Slide Yoke Onto Stub
With collar held forward, push the splined bore fully onto the PTO stub until the yoke is fully seated. The splines must be fully engaged before releasing the collar.
Release — Click Confirms Lock
Release the collar. The spring drives the push-pin into the stub engagement groove. An audible click and positive resistance to withdrawal confirms correct locking.
Dimensional Drawing — A / B / C / D Reference
A = Overall length | B = Cross pin diameter | C = Yoke width | D = Bore diameter. Refer to the compatibility table above for exact mm values.
End-face view of the 1-3/8″ Z6 spline bore (6-spline). Count the splines to confirm the correct specification before ordering.
Cross-Reference Part Numbers
| Brand / Standard | Part Number / Reference | Series Designation |
|---|---|---|
| Weasler (North American) | 102-0406 | NA Series 4 |
| Sparex / Eurocardan (European) | S.128157 | Italian Series / Z6 |
| Bondioli & Pavesi (Italian) | 1.05.04 | Italian catalog ref |
| Ever-Power Drive Line (This product) | EPG-YK-QR-4-Z6 | EPG Series 4 Z6 |
スプラインプロファイル参照
Left: Z6 (6-spline, 540 rpm) — Centre: Z21 (21-spline, European) — Right: Z20 (20-spline, 1,000 rpm)
主な機能
Push-Pin Quick Release
Spring-loaded push-pin mechanism allows tool-free connection and disconnection from the PTO stub. Press the collar to retract the pin; release to engage. An audible click confirms positive locking. One-handed operation in field conditions.
1-3/8″ Z6 Spline Bore
Standard 540 rpm agricultural interface — fits all Z6 PTO stubs worldwide. The bore is induction-hardened for resistance to spline wear during frequent engagement and release cycles.
27×74.6 mm Cross-Kit Seat
Precision-machined cross-kit bearing cup bores hardened to accept 27 mm pin diameter needle-roller cross-kit cups. Compatible with Series 4 cross kits used across T4 / L4 / G4 drive shaft assemblies.
20CrMnTi Forged Steel Body
Drop-forged chromium-manganese-titanium alloy steel yoke body, normalised and induction-hardened at the bearing seat bores. Phosphate surface coating provides corrosion resistance in outdoor agricultural conditions. Designed for long-term field service life.
Retention Spring and Collar
Heavy-duty retention spring loaded in the push-pin bore maintains positive engagement under PTO operating vibration. The collar provides a reliable surface for one-handed release in field gloves. Spring tension is calibrated for the series torque class.
CE Certified — LGPD Ready
CE Declaration of Conformity and ISO 9001:2015 documentation included with every shipment. LGPD data handling compliance for Brazil import submissions. SGS third-party inspection available for contract orders.
代表的な用途
Series 4 Z6 yoke — tractor-end connection for 28–45 hp implements
Rotary Cutters and Brush Hogs
Series 4 Z6 is the global standard yoke for rotary cutters and brush hogs on 28–45 hp tractors. It is the highest-volume PTO yoke specification worldwide, fitted as OEM standard on the majority of rotary cutter models in this tractor class.
Finish Mowers
Finish mowers on 30–45 hp tractors. The Series 4 Z6 Z6 push-pin provides positive engagement through continuous mowing operation and allows rapid disconnection for blade changing and deck maintenance.
General Purpose Farm Use
The most versatile PTO yoke specification — fits the widest range of 28–45 hp tractor implements including spreaders, seeders, tillers, and light balers. If a single yoke needs to be stocked for a mixed implement fleet, Series 4 Z6 is the correct choice.
Installation Procedure
Verify Series and Spline
Confirm your PTO shaft is Series 4 (27×74.6 mm cross kit) and your tractor PTO stub is Z6 (1-3/8″ 6-spline). Count the splines if in doubt.
Clean the Stub
Remove any rust, debris, or old lubricant from the tractor PTO stub and the yoke spline bore before installation. A clean, dry spline surface ensures maximum contact area and positive push-pin engagement.
Press Collar and Engage
Press the collar toward the yoke body to retract the push-pin. Align the yoke spline bore with the stub splines and push firmly until the yoke is fully seated on the stub.
Release and Verify Click
Release the collar. You should hear and feel the push-pin snap into the stub engagement groove. Tug the yoke firmly — it must not slide back without pressing the collar.
Anchor Safety Chain
After the shaft is fully connected (both ends), anchor the safety shield chains to fixed, non-rotating points on the tractor and implement. Never operate without safety chains secured.
よくある質問
- —Measure the cross-kit seat diameter at the bearing cup bore: Series 4 = 27 mm
- —The cross-kit journal length is 74.6 mm — longer than Series 3 (70 mm) and shorter than Series 5 (80 mm)
- —The Weasler part number 102-0406 or Italian catalog code 1.05.04 also confirm Series 4
- —Series 4: 27×74.6 mm cross-kit seat, 27 mm pin diameter
- —Series 5: 30.2×80 mm cross-kit seat, 30.2 mm pin diameter — larger, heavier, higher torque
- —The spline bore is the same (1-3/8″ 6-spline Z6) on both — only the cross-kit seat differs
- —If the existing yoke ears are wider and heavier than a known Series 4, it is likely Series 5
- —No — Series 4 Z6 has a 1-3/8″ 6-spline bore, which will not engage a 1-3/4″ 20-spline Z20 stub
- —For 1,000 rpm applications, you need Series 4 Z20 (20-spline bore) — a separate product
- —Always confirm the tractor PTO stub spline count before ordering
- —Quick release (push pin): use when the yoke is connected and disconnected frequently — daily implement changes
- —Clamp bolt: use when the yoke is installed once and removed only for scheduled maintenance
- —Push pin is the standard for tractor-end yokes; clamp bolt is more common on implement-end connections
- —Both provide secure retention — push pin offers faster operation; clamp bolt provides higher clamping force
- —Series 4 cross kit: 27×74.6 mm, code 4.01
- —This cross kit is shared with T4, L4, and G4 drive shaft assemblies
- —Individual cross kits are available from the Cross Kit product page
- —Always order cross kits by series code (4.01) to ensure correct journal length
お客様の声
Marco A.
Paraná, Brazil — Implement Dealer
★★★★★
- Series 4 Z6 yoke confirmed correct fit on T4 shaft assembly
- Push-pin engagement positive and audible — no retention issue across full season
- CE documentation included — straightforward import compliance for our fleet
Helena V.
Montevideo, Uruguay — Parts Distributor
★★★★★
- Series 4 Z6 stocked alongside T Series shafts — sells consistently as a replacement part
- Dimensional consistency across batches — no fit issues on any customer return
- Lead time within 9 days for stock orders — sufficient for our seasonal purchasing
配送および注文情報
最小注文数量
1 pc from stock
50 pcs custom / OEM
リードタイム
7～10日（在庫あり）
20–30 days (OEM)
配送
Sea / Air to Brazil
South America
取引条件
FOB Ningbo
CIFサントス利用可能
資格認定
CE認証取得済み
ISO 9001:2015
TS/16949
SGS検査LGPD準拠
