{"id":2584,"date":"2026-05-13T05:30:05","date_gmt":"2026-05-13T05:30:05","guid":{"rendered":"https:\/\/pto-gearboxes.top\/?post_type=product&p=2584"},"modified":"2026-05-13T05:55:42","modified_gmt":"2026-05-13T05:55:42","slug":"pto-shaft-for-round-balers","status":"publish","type":"product","link":"https:\/\/pto-gearboxes.top\/es\/producto\/pto-shaft-for-round-balers\/","title":{"rendered":"PTO Shaft for Round Balers"},"content":{"rendered":"
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ISO9001 \u00b7 CE Certified \u00b7 UK Agricultural Supply<\/p>\n

PTO Shaft for Round Balers<\/h2>\n

Precision-manufactured constant-velocity drivelines for New Holland, Claas, Krone and custom round baler configurations. Every round baler PTO shaft is backed by 18 years of application engineering and validated under real UK harvest conditions.<\/p>\n

\u2709\u00a0 Get a Free Quote Now<\/a><\/p>\n<\/div>\n

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Engineering Behind Every Round Baler PTO Shaft<\/h2>\n

\"PTOA round baler imposes one of the most punishing load cycles of any tractor-driven implement. Every few seconds, a fresh wedge of crop material enters the chamber, creating a sharp torque spike that travels back through the driveline toward the tractor. The PTO shaft sitting between those two machines must absorb every one of those spikes without transmitting destructive force to either the tractor PTO or the baler input gearbox. Achieve that consistently across a ten-week season and across fields varying from dry cereal straw to heavy, wet silage, and you understand why the specification of a round baler PTO shaft matters far more than most operators realise.<\/p>\n

Our engineering team has mapped failure modes across hundreds of baler configurations over nearly two decades. Three root causes account for the majority of mid-season failures: incorrect shaft length, worn or under-greased universal joint cross bearings, and a mismatched torque-limiting device. Every PTO shaft we supply is pre-checked against all three criteria before leaving our facility. Part numbers are cross-referenced to specific baler models \u2014 including the full New Holland BR7050, BR7060, BR7070, BR7080, and BR7090 series \u2014 so the unit you receive is matched to your machine, not simply the closest approximation in a catalogue.<\/p>\n

Agricultural contractors and farm managers across England, Scotland, and Wales operating at full seasonal intensity know the cost of unplanned machine downtime. Our stock levels and UK delivery network are structured around that reality: accurate specifications, reliable lead times, and a technical support team that responds by email within one working day.<\/p>\n<\/div>\n

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Our technical team confirms specifications and returns a detailed price within 24 hours.<\/p>\n

Request a Specification & Price<\/a><\/p>\n<\/div>\n

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New Holland BR7000 Series Compatibility<\/h2>\n

New Holland BR7000-series balers are among the most widely operated round balers in the UK market. The table below covers each variant, specifying the horsepower rating, constant-velocity PTO category, and the torque protection device required. If your model is not listed, or if you are sourcing a PTO shaft for a Claas, Krone, or KUHN round baler, contact us with your input shaft specification and we will confirm the correct configuration.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Model<\/th>\nHP<\/th>\nCV PTO Cat.<\/th>\nTorque Device<\/th>\n<\/tr>\n<\/thead>\n
BR7050<\/td>\n40<\/td>\nCAT3<\/td>\nShear Bolt<\/td>\n<\/tr>\n
BR7050 HM<\/td>\n45<\/td>\nCAT3<\/td>\nShear Bolt<\/td>\n<\/tr>\n
BR7060<\/td>\n60<\/td>\nCAT4<\/td>\nShear Bolt<\/td>\n<\/tr>\n
BR7060 STD<\/td>\n60<\/td>\nCAT4<\/td>\nSlip Clutch<\/td>\n<\/tr>\n
BR7060 SS<\/td>\n65<\/td>\nCAT4<\/td>\nSlip Clutch<\/td>\n<\/tr>\n
BR7060 CC<\/td>\n100<\/td>\nCAT5<\/td>\nCut-Out Clutch<\/td>\n<\/tr>\n
BR7070<\/td>\n70<\/td>\nCAT4<\/td>\nSlip Clutch<\/td>\n<\/tr>\n
BR7070 SS<\/td>\n70<\/td>\nCAT4<\/td>\nSlip Clutch<\/td>\n<\/tr>\n
BR7070 CC<\/td>\n105<\/td>\nCAT6<\/td>\nCut-Out Clutch<\/td>\n<\/tr>\n
BR7080<\/td>\n70<\/td>\nCAT5<\/td>\nSlip Clutch<\/td>\n<\/tr>\n
BR7090<\/td>\n80<\/td>\nCAT5<\/td>\nSlip Clutch<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

\u24d8\u00a0 Input shaft profiles: 1.375\u20116 spline (540\u00a0rpm) and 1.375\u201121 spline (1,000\u00a0rpm). Other combinations available on request.<\/p>\n<\/div>\n

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\"PTO<\/div>\n

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Why UK Operators Choose These PTO Drivelines<\/h2>\n

Quality built in at every stage \u2014 from steel sourcing to final guard inspection.<\/p>\n

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\u2699<\/p>\n

Certified-Mill Alloy Steel<\/h3>\n

Tube sections, yokes, and inner profiles are machined from certified-mill structural alloy steel. Chemical composition and tensile properties are batch-logged, providing end-to-end traceability from raw material intake to despatch. This matters for dealers and contractors who need documentation for warranty or insurance purposes.<\/p>\n<\/div>\n

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\ud83d\udd25<\/p>\n

Controlled-Atmosphere Heat Treatment<\/h3>\n

Spline sections and cross journal bearing seats are processed in precision atmosphere furnaces that eliminate surface decarburisation \u2014 the silent cause of premature spline stripping common in budget replacement shafts. The result is consistent case hardness with no soft spots, validated by hardness testing on every production batch.<\/p>\n<\/div>\n

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\ud83d\udccb<\/p>\n

100% Pre-Despatch Inspection<\/h3>\n

Each completed round baler PTO shaft passes a dimensional check, surface quality review, guard integrity test, and torque limiter calibration verification. Inspection records accompany bulk orders, supporting incoming quality procedures for dealers who require documented evidence of conformity.<\/p>\n<\/div>\n

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\ud83d\udd12<\/p>\n

CE-Marked Safety Guards<\/h3>\n

Every PTO shaft ships complete with CE-marked plastic guard profiles manufactured from UV-stabilised polypropylene. The guard geometry is engineered to retain secure positioning under field vibration and resist the cracking that plagues cheaper alternatives after a single season of UV exposure. Replacement guards are available separately if needed mid-season.<\/p>\n<\/div>\n<\/div>\n

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CV PTO Series \u2014 Base Part Number Reference<\/h2>\n

The table below provides base part number references for the constant-velocity PTO shaft configurations used across the BR7000 range. The implement-side torque device must be confirmed at the point of order, since shear bolt, slip clutch, and cut-out clutch variants share the same driveline body but carry different overload protection assemblies suited to different crop and operating conditions.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
CV PTO Type<\/th>\nTractor Spline<\/th>\nSpeed (rpm)<\/th>\nBase Part No.<\/th>\nImplement Device<\/th>\n<\/tr>\n<\/thead>\n
CAT3<\/td>\n1.375\u20116<\/td>\n540<\/td>\n71R4121UCW07000<\/td>\nMust specify<\/td>\n<\/tr>\n
CAT4<\/td>\n1.375\u20116<\/td>\n540<\/td>\n7G7R121U2WR7R07<\/td>\nMust specify<\/td>\n<\/tr>\n
CAT4<\/td>\n1.375\u201121<\/td>\n1,000<\/td>\nCS6R121U2WR8000<\/td>\nMust specify<\/td>\n<\/tr>\n
CAT5<\/td>\n1.375\u20116<\/td>\n540<\/td>\n71R8121UCWR7R10<\/td>\nMust specify<\/td>\n<\/tr>\n
CAT5<\/td>\n1.375\u201121<\/td>\n1,000<\/td>\nCS8R121U2WR8000<\/td>\nMust specify<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

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Materials, Operating Principles & Field Scenarios<\/h2>\n

The tube wall thickness on each PTO shaft is calculated to prevent resonance harmonics at both 540 and 1,000 rpm operating speeds \u2014 a detail that separates engineered drivelines from commodity stock tubes. Inner profiles are typically triangular or lemon-section depending on torque category, machined with controlled radial clearance to allow smooth telescopic sliding under load without excessive backlash. Cross journal needle bearing assemblies use high-capacity needle rollers pre-packed with lithium-complex grease rated to 150\u00b0C, addressing the thermal conditions that develop inside a sealed guard during extended high-speed operation.<\/p>\n

In typical UK harvest patterns \u2014 silage from late April through June across dairy farm country in the North and West, hay baling through June and July, and cereal straw baling from mid-July onwards across the arable East and South \u2014 a round baler PTO shaft may accumulate between 200 and 400 operating hours in a single season. Under standard dry conditions, universal joints should be greased every 20 hours. In wet silage work or on abrasive sandy soils, that interval drops to 8 hours. Opening the guard fully \u2014 not greasing through the small access hole \u2014 is essential to ensure grease reaches all four bearing seats on the cross.<\/p>\n

\"PTO<\/p>\n

Common Implement Applications<\/p>\n

Round Balers<\/span>
\nSquare Balers<\/span>
\nSilage Wrappers<\/span>
\nDisc Mowers<\/span>
\nTedders<\/span>
\nWood Chippers<\/span>
\nWater Pumps<\/span>
\nRotary Harrows<\/span><\/div>\n<\/div>\n

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Shaft Length, Installation & Seasonal Maintenance<\/h2>\n

\"RoundCorrect shaft length is not a preference \u2014 it is a safety requirement. A round baler PTO shaft that is too long will bottom out during field operation, generating axial end-thrust forces that can destroy the baler’s input gearbox. A shaft that is too short risks separating from the implement under load, with obvious and serious safety implications for the operator and any bystanders. The measurement protocol for a new tractor-baler combination involves recording tractor PTO stub and implement input stub dimensions on level ground with the baler correctly hitched, then applying the supplier’s minimum overlap formula at both the shortest and longest working positions \u2014 including at full steering lock and when reversing the tractor toward the baler.<\/p>\n

When installing the PTO shaft, attention must be given to universal joint phasing. The two yokes at opposite ends of the outer profile must be aligned in the same plane \u2014 a 90\u00b0 error in this phasing will cause torsional vibration at operating speed, accelerating cross bearing wear and potentially damaging both the tractor PTO and the baler input shaft. Most operators fit shafts supplied to OEM specifications without modification, but if cutting is required, our team can provide model-specific length guidance.<\/p>\n

The PTO shaft guard should be checked at the start and end of each baling campaign. Cracked or missing guards must be replaced before the next season’s work \u2014 not because of a regulation box-ticking exercise, but because an unguarded rotating driveline running at 540 or 1,000 rpm represents a genuinely severe entanglement risk. Replacement guards are stocked separately and can be ordered alongside the main shaft.<\/p>\n<\/div>\n

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Real Results from UK Agricultural Businesses<\/h2>\n

From Yorkshire arable contractors to Ayrshire dairy partnerships \u2014 what customers say after multiple seasons in the field.<\/p>\n

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James Hargreaves \u2014 Contracting Manager, H&S Agricultural Contractors Ltd<\/p>\n

North Yorkshire, England \u00a0\u00b7\u00a0 New Holland BR7070 x4 fleet<\/p>\n<\/div>\n

“We run four BR7070 balers through a ten-week straw campaign in the Vale of York. After two seasons of cross-joint failures and guard cracking from a previous PTO shaft supplier, we switched across. Both complete seasons since then \u2014 zero field stoppages. The guard quality alone justifies the change, but the shaft life has been noticeably better too.”<\/p>\n

\u2605\u2605\u2605\u2605\u2605<\/span>
\nVerified buyer \u00a0\u00b7\u00a0 Repeat purchase, 2 seasons<\/span><\/p>\n<\/div>\n

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Alistair McPherson \u2014 Farm Operations Director, Lochside Dairy Partnership<\/p>\n

Ayrshire, Scotland \u00a0\u00b7\u00a0 New Holland BR7080 silage & hay operation<\/p>\n<\/div>\n

“Silage work in the West of Scotland is about as tough as it gets for a PTO shaft \u2014 wet, dense crop, long hours. I requested a CAT5 slip-clutch configuration and received a full spec sheet within a few hours with two torque limiter options clearly explained. Lead time was nine days to our farm gate. Two full silage seasons with no issues.”<\/p>\n

\u2605\u2605\u2605\u2605\u2605<\/span>
\nVerified buyer \u00a0\u00b7\u00a0 CAT5 Slip Clutch configuration<\/span><\/p>\n<\/div>\n

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Elwyn Pritchard \u2014 Sole Trader \/ Mixed Farmer, Tir Glas Farm<\/p>\n

Ceredigion, Wales \u00a0\u00b7\u00a0 New Holland BR7060 STD hay baling<\/p>\n<\/div>\n

“As a sole trader I cannot afford to be chasing parts mid-harvest. I needed a replacement for my BR7060 STD and was concerned about dimensional matching. The team confirmed the input shaft profile before shipping \u2014 it fitted perfectly. Three seasons now on upland hay fields in Mid Wales, and the shaft is still in good condition.”<\/p>\n

\u2605\u2605\u2605\u2605\u2605<\/span>
\nVerified buyer \u00a0\u00b7\u00a0 BR7060 STD direct replacement<\/span><\/p>\n<\/div>\n<\/div>\n

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Manufacturing Capability & Custom PTO Shaft Solutions<\/h2>\n

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12,000 m\u00b2<\/p>\n

Total production facility footprint<\/p>\n<\/div>\n

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16,000 pcs\/mo<\/p>\n

Monthly production capacity per shaft type<\/p>\n<\/div>\n

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CE \u00b7 ISO9001<\/p>\n

Quality certifications in force<\/p>\n<\/div>\n

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18+ Years<\/p>\n

PTO shaft application engineering experience<\/p>\n<\/div>\n<\/div>\n

The facility operates a dedicated mould workshop with high-precision CNC machining centres, a shot-blasting line for oxide removal and surface preparation, and a controlled-atmosphere heat treatment zone. For customers requiring custom configurations \u2014 non-standard tube lengths, bespoke yoke interfaces for specialist implements, or private-label packaging for agricultural machinery dealers operating across England, Scotland, and Wales \u2014 our engineering team produces specification drawings and a sample batch for approval before full production begins.<\/p>\n

Agricultural dealers who need a dependable OEM-quality PTO shaft supply partner for the UK market will find our stock programme, fast-track sampling process, and competitive volume pricing well matched to the demands of seasonal agricultural retail. Several UK distributors currently hold blanket order agreements, enabling call-off deliveries during peak baling season without lead-time risk. Annual turnover consistently exceeds USD 9 million and is growing year-on-year across European, North American, and Asia-Pacific markets.<\/p>\n

Get a Quote \u00a0\u203a<\/a><\/p>\n<\/div>\n

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\"PTO<\/div>\n

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Related Products<\/h2>\n

Complete your tractor-to-implement power transmission setup from a single trusted source.<\/p>\n

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\u2699\u00a0 Agricultural PTO Gearboxes<\/h3>\n

Speed-reduction and speed-increasing ratio gearboxes for converting between 540 and 1,000 rpm PTO output. Compatible with the same range of implement applications as our PTO shaft<\/a> range, with right-angle, inline, and bevel-gear configurations available.<\/p>\n

Enquire about pricing \u203a<\/a><\/p>\n<\/div>\n

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\ud83d\udd17\u00a0 Universal Joint Couplings & Cross Kits<\/h3>\n

Cross-and-bearing assemblies, welded yokes, and flanged yokes for driveshaft repair and custom assembly. Available in agricultural and industrial series covering tube bores from 27 mm to 80 mm.<\/p>\n

Enquire about pricing \u203a<\/a><\/p>\n<\/div>\n

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\ud83d\udd12\u00a0 PTO Safety Guards & Replacement Cones<\/h3>\n

UV-stabilised polypropylene replacement guards, complete guard assemblies with bearing support, and individual cone covers for in-season repairs. Stocked in sizes to suit CAT3 through CAT6 driveline profiles.<\/p>\n

Enquire about pricing \u203a<\/a><\/p>\n<\/div>\n

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\ud83d\udcc8\u00a0 Square Baler PTO Shafts<\/h3>\n

Fixed and telescopic drivelines for Claas Quadrant, New Holland BigBaler, and Fendt Rotana series square balers, with optional automatic-reset overrunning clutches suited to high-density baling operations.<\/p>\n

Enquire about pricing \u203a<\/a><\/p>\n<\/div>\n<\/div>\n

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\"PTO<\/div>\n

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Frequently Asked Questions<\/h2>\n

Answers to the questions most commonly raised by agricultural contractors, farm managers, and machinery dealers across the UK.<\/p>\n

\nWhat is the best PTO shaft for a New Holland BR7070 round baler used for hay baling in Yorkshire?<\/summary>\n
For a BR7070 operating on dry hay in Yorkshire, a CAT4 constant-velocity driveline with a slip-clutch torque limiter is the standard specification. A 1.375\u20116 spline tractor-end profile applies if your tractor operates at 540 rpm, which remains common across the UK market. If you are pushing higher crop volumes or running into silage work, a cut-out clutch variant offers better protection at peak loads. Contact us with your tractor model and PTO speed and we will confirm the exact part before you order.<\/div>\n<\/details>\n
\nHow much does a replacement round baler PTO shaft cost, and can I get a bulk supply price for my dealership in England?<\/summary>\n
Pricing depends on torque category, shaft length, and torque limiter type. Volume discounts apply from 10 units upwards, and dealers across England, Scotland, and Wales can negotiate blanket order agreements to lock in pricing ahead of the baling season. Email your full requirements to sales@pto-gearboxes.top<\/a> and receive a detailed quote with lead-time confirmation within one business day.<\/div>\n<\/details>\n
\nWhere can I find a reliable PTO shaft supplier in the UK who can despatch round baler drivelines quickly during harvest?<\/summary>\n
We supply directly to UK agricultural contractors, farm businesses, and machinery dealers from stock. Our delivery partners cover all mainland UK postcodes, with standard lead times of 5 to 10 working days. Express despatch can be arranged during peak harvest periods for urgent orders. We ship to England, Scotland, Wales, and Northern Ireland, with export capability to Europe and beyond.<\/div>\n<\/details>\n
\nHow do I know if my round baler PTO shaft is too long or too short, and what damage can the wrong length cause?<\/summary>\n
A PTO shaft that is too long bottoms out under axial loads, destroying the baler input gearbox \u2014 a very expensive repair. A shaft too short may separate from the implement under working loads, posing an immediate safety risk. Measure from tractor PTO stub end to implement stub end on level ground with the baler hitched, then apply the minimum overlap formula at both the shortest and longest working positions. Our technical team provides length guidance for any BR7000-series model free of charge by email.<\/div>\n<\/details>\n
\nWhat is the difference between a slip clutch and a shear bolt clutch on a round baler PTO driveline, and which is better for UK silage work?<\/summary>\n
A shear bolt clutch uses sacrificial bolts that fracture at a preset torque. Resetting requires stopping the machine and replacing the bolts \u2014 simple, but time-consuming mid-field. A slip clutch slips momentarily when the torque limit is exceeded and re-engages automatically without intervention. For high-volume UK silage work where blockages are frequent, the slip clutch is strongly preferred. For occasional or lighter-duty baling, shear bolt clutches provide lower-cost, predictable protection.<\/div>\n<\/details>\n
\nWhen should I replace the universal joints on my PTO shaft, and what are the early warning signs of cross-bearing failure on a baler?<\/summary>\n
Early signs include vibration during baling, visible rust or pitting on the cross journals, grease weeping from bearing caps, or perceptible free play when rocking the shaft at rest. Universal joints on round baler PTO shafts typically last two to five seasons depending on greasing frequency and crop conditions. Inspect at the start and end of each baling campaign and replace proactively if any wear is visible \u2014 mid-season failure is far more disruptive and costly than planned replacement.<\/div>\n<\/details>\n
\nWhich PTO shaft category do I need for a 100 hp New Holland round baler running intensive silage work in Scotland?<\/summary>\n
For a 100 hp application such as the BR7060 CC, a CAT5 constant-velocity driveline with a cut-out clutch is the specified configuration. Heavy, wet Scottish silage crop imposes significant peak torque loads, making the cut-out clutch the preferred protective device over a shear bolt for this duty cycle. Confirm whether your tractor runs at 540 rpm (1.375\u20116 spline) or 1,000 rpm (1.375\u201121 spline) to select the correct input profile before placing an order.<\/div>\n<\/details>\n<\/div>\n

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Serving Agricultural Businesses Across the United Kingdom<\/p>\n

Get the Right PTO Shaft \u2014 Fast, Specified, Delivered<\/h2>\n

Whether you need a single replacement round baler PTO shaft for the coming season or a year-round supply agreement for your dealership network, our technical and commercial team is ready to help. We cover England, Scotland, Wales, and Northern Ireland, and export to farming operations across Europe and beyond. Email your specification today for a detailed, itemised quote.<\/p>\n

\"PTO<\/p>\n

\u2709\u00a0 sales@pto-gearboxes.top<\/a><\/p>\n

Response within 1 business day \u00a0\u00b7\u00a0 CE & ISO9001 certified \u00a0\u00b7\u00a0 Custom configurations available \u00b7 edit by gzl<\/p>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

CV PTO shafts for round balers \u2014 alloy steel, heat-treated splines, CE-marked guards. Fits NH BR7050\u2013BR7090. CAT3\u2013CAT6, slip clutch & shear bolt. ISO9001.<\/p>","protected":false},"featured_media":2585,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[4285],"product_tag":[],"class_list":{"0":"post-2584","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-pto-shaft","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pto-gearboxes.top\/es\/wp-json\/wp\/v2\/product\/2584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pto-gearboxes.top\/es\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pto-gearboxes.top\/es\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/pto-gearboxes.top\/es\/wp-json\/wp\/v2\/comments?post=2584"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pto-gearboxes.top\/es\/wp-json\/wp\/v2\/media\/2585"}],"wp:attachment":[{"href":"https:\/\/pto-gearboxes.top\/es\/wp-json\/wp\/v2\/media?parent=2584"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/pto-gearboxes.top\/es\/wp-json\/wp\/v2\/product_brand?post=2584"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pto-gearboxes.top\/es\/wp-json\/wp\/v2\/product_cat?post=2584"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pto-gearboxes.top\/es\/wp-json\/wp\/v2\/product_tag?post=2584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}