{"id":797,"date":"2026-05-28T03:07:48","date_gmt":"2026-05-28T03:07:48","guid":{"rendered":"https:\/\/automatictransmissionpart.com\/?post_type=product&p=797"},"modified":"2026-05-28T03:07:48","modified_gmt":"2026-05-28T03:07:48","slug":"ep-universal-joint-with-2-wing-bearings-and-2-grooved-or-plain-round-bearings","status":"publish","type":"product","link":"https:\/\/automatictransmissionpart.com\/zh\/product\/ep-universal-joint-with-2-wing-bearings-and-2-grooved-or-plain-round-bearings\/","title":{"rendered":"EP\u578b\u4e07\u5411\u8282\uff0c\u5e262\u4e2a\u7ffc\u5f62\u8f74\u627f\u548c2\u4e2a\u6c9f\u69fd\u5f0f\u6216\u6ed1\u52a8\u5f0f\u5706\u5f62\u8f74\u627f"},"content":{"rendered":"
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EP \u2014 Universal Joint With 2 Wing Bearings And 2 Grooved Or Plain Round Bearings<\/h2>\n

Heavy-duty universal joint engineered for demanding driveline applications. Combining two wing bearings with two grooved or plain round bearings, this U-joint delivers consistent torque transfer, vibration damping, and extended service life across automotive, agricultural, and industrial platforms \u2014 including the rugged road conditions encountered throughout Colombia and Latin America.<\/p>\n

Part Series: 5-2031X \u00b7 5-2033X \u00b7 5-4016X \u00b7 5-345X \u00b7 5-330X \u00b7 S-C673 \u00b7 S-C674 and more<\/div>\n<\/div>\n

1. Technical Specifications & Part Number Reference<\/h2>\n

The tables below list all available part numbers in the EP U-Joint With 2 Wing Bearings And 2 Grooved Or Plain Round Bearings series. Dimensions are given in millimetres. D\/CtoC indicates the bearing cup outer diameter (wing side \/ round side). L1\/L2 indicates the overall cross length measured across the two axis pairs. Bearing type codes: 2LWD = 2 Light Wing; 2HWD = 2 Heavy Wing; 2RND = 2 Round.<\/p>\n

<\/p>\n

Series A \u2014 2LWD, 2RND (Light Wing + Round)<\/strong><\/p>\n

\n\n\n\n\n\n\n\n
\u5982\u56fe<\/th>\n\u96f6\u4ef6\u7f16\u53f7<\/th>\nD\/CtoC (mm)<\/th>\nL1\/L2 (mm)<\/th>\n\u65af\u6d3e\u585e<\/th>\n\u7cbe\u786e<\/th>\nROCK WELL<\/th>\nCATER PILLAR<\/th>\nBEARING TYPE<\/th>\n<\/tr>\n<\/thead>\n
F<\/td>\n5-2031X<\/td>\n25.4 \/ 33.34<\/td>\n55.2 \/ 79.22<\/td>\n5-2031X<\/td>\n508<\/td>\nCP2031<\/td>\n\u2014<\/td>\n2LWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\n5-2033X<\/td>\n25.4 \/ 33.34<\/td>\n54.5 \/ 79<\/td>\n5-2033X<\/td>\n522<\/td>\nCP2033<\/td>\n6D2529<\/td>\n2LWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\n5-4016X<\/td>\n28.5 \/ 36.5<\/td>\n77.9 \/ 108<\/td>\n5-4016X<\/td>\n546<\/td>\nCP4016X<\/td>\n\u2014<\/td>\n2LWD, 2RND<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

Series B \u2014 2HWD, 2RND (Heavy Wing + Round)<\/strong><\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u5982\u56fe<\/th>\n\u96f6\u4ef6\u7f16\u53f7<\/th>\nD\/CtoC (mm)<\/th>\nL1\/L2 (mm)<\/th>\n\u65af\u6d3e\u585e<\/th>\n\u7cbe\u786e<\/th>\nROCK WELL<\/th>\nCATER PILLAR<\/th>\nBEARING TYPE<\/th>\n<\/tr>\n<\/thead>\n
F<\/td>\n5-345X<\/td>\n30.18 \/ 36.5<\/td>\n106.29 \/ 107.9<\/td>\n5-345X<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\n5-154X<\/td>\n33.35 \/ 42.85<\/td>\n84.023 \/ 114.96<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\nW-6139<\/td>\n33.35 \/ 42.88<\/td>\n104.25 \/ 140.25<\/td>\n\u2014<\/td>\n565<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\n5-303X<\/td>\n34.92 \/ 42.8<\/td>\n126.1 \/ 140.4<\/td>\n5-303X<\/td>\n470<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\nR221<\/td>\n34.92 \/ 42.8<\/td>\n126 \/ 140.4<\/td>\n5-221X<\/td>\n470<\/td>\n\u2014<\/td>\n5Y0154<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\nHD205-3<\/td>\n41.5 \/ 49.2<\/td>\n104.5 \/ 148.4<\/td>\n\u2014<\/td>\n483<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\nS-D868<\/td>\n27.03 \/ 32<\/td>\n41.6 \/ 67.2<\/td>\nS-D868<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\nUJ480<\/td>\n32.18 \/ 42.88<\/td>\n78.95 \/ 115.06<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\nUJ997<\/td>\n33.35 \/ 42.88<\/td>\n79 \/ 115.06<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\n5-330X<\/td>\n41.2 \/ 49.2<\/td>\n142 \/ 148.2<\/td>\n5-330X<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\nS-C673<\/td>\n52.37 \/ 71.6<\/td>\n174.2 \/ 179.6<\/td>\nS-C673<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n
F<\/td>\nS-C674<\/td>\n52.37 \/ 71.6<\/td>\n207.8 \/ 213.2<\/td>\nS-C674<\/td>\n\u2014<\/td>\n\u2014<\/td>\n\u2014<\/td>\n2HWD, 2RND<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Note: All dimensions are in millimetres. Cross-reference numbers shown are for identification purposes. Verify fit against your vehicle’s OEM part number or driveshaft yoke dimensions before placing a universal joint replacement order.<\/p>\n

\"automatictransmissionpart-products-EP-Universal<\/p>\n

2. What Is a Universal Joint?<\/h2>\n

A universal joint \u2014 often shortened to U-joint \u2014 is a rigid mechanical coupling that connects two rotating shafts whose axes are not collinear. Rather than restricting movement, it allows the shafts to operate at variable angles while still transmitting rotary motion and torque. This flexibility makes the universal joint one of the most important components in any vehicle driveline, from passenger cars and pickup trucks to heavy trucks, SUVs, and off-road equipment.<\/p>\n

The EP series Universal Joint With 2 Wing Bearings And 2 Grooved Or Plain Round Bearings is a specialized configuration that pairs conventional wing-type bearing caps with either grooved or plain round bearing cups. This mixed bearing design allows the joint to accommodate a wider range of misalignment angles while maintaining load capacity. It is particularly well suited for applications where the driveshaft must pass over suspension travel \u2014 a common requirement in trucks, buses, and agricultural machinery operating on uneven terrain in Colombia and other Latin American markets.<\/p>\n

Understanding what a universal joint does and how it works helps fleet managers, mechanics, and engineers select the right replacement or OEM-specification component, reducing downtime and avoiding premature wear across the entire drivetrain system.<\/p>\n<\/div>\n

<\/p>\n

3. \u4e94\u5927\u4ea7\u54c1\u4f18\u52bf<\/h2>\n
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\u25cf Advantage 01<\/div>\n

Mixed Bearing Configuration for Greater Versatility<\/strong><\/p>\n

The combination of wing bearings and grooved or plain round bearings allows this universal joint to cover a broad range of driveshaft angles and load profiles. Whether you are dealing with a light-duty steering column universal joint or a high-torque rear driveshaft on a truck, this design provides a precise fit without compromising the integrity of the bearing surfaces under dynamic loading conditions.<\/p>\n<\/div>\n

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\u25cf Advantage 02<\/div>\n

Wide Cross-Reference Compatibility<\/strong><\/p>\n

Each part number in the EP series is engineered to interchange with leading OEM and aftermarket references, including Spicer, Precision, Rock Well, Caterpillar, and others. This broad cross-referencing capability simplifies procurement for workshops and fleet operators, cutting lead times and supporting universal joint replacement across diverse vehicle makes in the Colombian and broader South American automotive markets.<\/p>\n<\/div>\n

\n
\u25cf Advantage 03<\/div>\n

High-Grade Alloy Steel Construction<\/strong><\/p>\n

The cross body and bearing cups are precision-machined from high-grade alloy steel, then heat-treated to achieve consistent hardness throughout the working surfaces. This manufacturing approach results in a universal joint that withstands the shock loading, vibration, and high-cycle fatigue associated with heavy truck and industrial driveline use \u2014 conditions that routinely shorten the life of lower-quality alternatives.<\/p>\n<\/div>\n

\n
\u25cf Advantage 04<\/div>\n

ISO 9001-Certified Quality Management<\/strong><\/p>\n

Production follows a rigorous ISO 9001:2008 quality management framework, backed by third-party certification. Every batch of universal joints undergoes dimensional inspection, surface roughness measurement, hardness testing, and finished-product verification before leaving the facility. This structured quality control process ensures that each steering universal joint and driveshaft U-joint shipped meets repeatable dimensional and performance standards.<\/p>\n<\/div>\n

\n
\u25cf Advantage 05<\/div>\n

Optimized Lubrication Retention<\/strong><\/p>\n

The grooved round bearing variant features precision-machined internal grooves that distribute and retain lubricant evenly across the needle bearing array. This design minimizes friction at elevated operating temperatures and reduces the intervals required for re-greasing in service, making it an especially practical choice for heavy vehicles and agricultural machinery operating in hot or dusty environments such as those found in Colombia’s coastal lowlands and interior valleys.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

4. Universal Joint Working Principle<\/h2>\n

At its core, a universal joint transmits rotation between two shafts through a cross-shaped trunnion \u2014 commonly called a spider \u2014 fitted with four bearing cups. When driving torque is applied to the input yoke, the spider pivots simultaneously on two pairs of opposing bearing cups, allowing continuous torque transfer even as the angle between the two shafts changes during suspension travel, steering lock, or equipment articulation.<\/p>\n

In the EP configuration with 2 wing bearings and 2 grooved or plain round bearings, two of the four bearing positions use wing-type cups that engage broad yoke ears for high axial load capacity, while the remaining two positions use cylindrical cups \u2014 either plain-bore or grooved-bore \u2014 that seat within the opposing yoke and accept needle roller bearings with a slightly different geometric envelope. This arrangement allows the joint to accommodate yoke designs where one pair of ears is built wider or deeper than the other, which is common in many heavy truck, off-road, and agricultural driveshaft configurations.<\/p>\n

One important characteristic of Cardan-type universal joints (including this design) is velocity non-uniformity: when operating at a shaft angle greater than zero, the output velocity fluctuates twice per revolution relative to the constant input speed. In practice, this is managed by mounting two universal joints in a driveshaft assembly at equal and opposite angles, a configuration known as a double-Cardan or phased arrangement, so that the velocity errors cancel each other and smooth rotation is restored at the final output.<\/p>\n

Proper phasing and correct lubrication are the two most critical factors in maximizing the service life of any universal joint in car, truck, or industrial use. When both conditions are met, the bearing contact surfaces distribute load evenly and wear at a predictable, manageable rate \u2014 exactly what the EP series is engineered to support.<\/p>\n

<\/p>\n

5. Material Composition<\/h2>\n

Material selection is a decisive factor in the service life and load capacity of any universal joint. The EP series draws on a carefully chosen set of materials for each functional component.<\/p>\n

Cross (Spider) Body:<\/strong> Manufactured from 20CrMnTi or equivalent low-carbon alloy steel. The material undergoes carburizing and case-hardening to achieve a surface hardness in the range of 58\u201362 HRC, providing excellent wear resistance at the needle bearing contact zones while retaining a tough, impact-resistant core. This heat-treatment sequence is validated by induction quenching equipment on-site and verified with microhardness testers after processing.<\/p>\n

Bearing Cups (Wing and Round):<\/strong> Bearing cups are formed from low-alloy case-hardening steel, precision-turned and ground to tight dimensional tolerances. The cup bore and end-face are finished to a surface roughness specification that ensures consistent needle bearing contact and even grease distribution across the active bearing surface. Wing cups are designed with broader flanges that engage the yoke ear face over a larger contact area, distributing the axial load and resisting the moment forces generated under high-angle operation.<\/p>\n

Needle Rollers:<\/strong> High-carbon chromium bearing steel (equivalent to GCr15 \/ 100Cr6 \/ SAE 52100) needle rollers are used in all bearing positions. This material delivers the combination of high surface hardness, fatigue resistance, and dimensional uniformity that needle bearing applications demand. Rollers are inspected for diameter consistency and surface quality before assembly.<\/p>\n

Seals and Retainers:<\/strong> Oil-resistant nitrile rubber (NBR) seals protect each bearing cup from contamination. In applications that specify grease nipple fittings, the trunnion body includes a grease passage that routes lubricant directly to the needle array, extending re-lubrication intervals and protecting the joint when operating in wet or dusty environments \u2014 a common concern for universal joint truck applications across Colombia’s varied climatic zones.<\/p>\n

\"automatictransmissionpart-products-EP-Universal<\/p>\n

6. \u5e94\u7528\u573a\u666f<\/h2>\n

The universal joint types within this series serve a broad spectrum of industries. Below are the primary application areas where this product excels.<\/p>\n

\n
\n

Universal Joint in Car & Light Truck Drivelines<\/h3>\n

For passenger cars and light pickup trucks, the EP series universal joint provides a direct OEM-specification interchange for Spicer, Precision, and Rock Well cross kits. Its compact dimensions \u2014 particularly the 5-2031X and 5-2033X \u2014 suit rear-wheel-drive and part-time four-wheel-drive driveshafts where the centre-to-centre distance is short. Drivers seeking a reliable universal joint replacement for their vehicles in Colombia’s urban centres such as Bogot\u00e1, Medell\u00edn, and Cali will find that these part numbers are widely stocked by automotive aftermarket distributors.<\/p>\n<\/div>\n

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Heavy Truck & Commercial Vehicle Driveshafts<\/h3>\n

The larger 2HWD,2RND series \u2014 including parts 5-303X, R221, 5-330X, S-C673, and S-C674 \u2014 is sized for medium and heavy commercial vehicles where the driveshaft carries substantial torque at low to moderate angular velocities. These universal joint truck applications span long-haul freight carriers, dump trucks, and articulated buses. The heavy wing bearing design widens the load-bearing surface at the yoke ear, a critical advantage when the vehicle operates on paved highways and secondary roads with significant pavement irregularities, as is commonly encountered throughout the Colombian Andes road network.<\/p>\n<\/div>\n

\n

Agricultural Machinery PTO Shafts<\/h3>\n

Tractors and harvesting equipment rely on power take-off (PTO) shafts to drive implements like mowers, balers, and tillers. These shafts operate under cyclic loading and frequent angle changes as the tractor navigates uneven ground. A universal joint engineered to the 2HWD,2RND specification handles this type of pulsating torque reliably, and its grease-nipple-compatible trunnion design supports the more frequent re-lubrication schedules recommended in dusty agricultural environments such as Colombia’s coffee and sugarcane growing regions.<\/p>\n<\/div>\n

\n

\u8f6c\u5411\u67f1\u4e07\u5411\u8282<\/h3>\n

In many vehicles, the steering column must change direction between the steering wheel and the steering gearbox, requiring one or two steering universal joints (also called steering column universal joints or universal steering joints) to navigate around the firewall and engine bay. The EP steering universal joint designs in this series offer the precision-ground trunnion geometry needed to maintain consistent steering feel without the slack or bind that can develop in lower-quality aftermarket alternatives. Compact dimensions and tight angular tolerances are critical in this safety-relevant application.<\/p>\n<\/div>\n

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Industrial & Mining Equipment<\/h3>\n

Mining operations in Colombia \u2014 particularly in the Cesar coal belt and Antioquia gold mines \u2014 use heavy machinery including excavators, conveyors, and drill rigs that rely on universal joint assemblies to transmit rotary motion through non-parallel shaft arrangements. The robust construction of the universal impact joint variants in this range, combined with the high-alloy steel specification and case-hardened bearing surfaces, makes them suitable for these demanding, high-vibration applications where replacement access is difficult and unplanned downtime is costly.<\/p>\n<\/div>\n

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Bus & Coach Fleets<\/h3>\n

Urban and intercity bus fleets operating in Colombia place particular demands on driveline components due to the combination of stop-start city driving and sustained high-speed motorway operation. The S-D868, UJ480, and UJ997 part numbers in the 2HWD,2RND series are compatible with common bus driveshaft configurations, providing a reliable source for fleet maintenance managers. Consistent dimensional tolerance across production batches allows workshops to maintain a small safety stock without the risk of receiving out-of-specification parts.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

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7. Applicable Standards, Regulations, and Compliance<\/h2>\n

When sourcing universal joints and drivetrain components for use in vehicles and machinery, buyers should be aware of the regulatory frameworks that govern product quality, vehicle roadworthiness, and workplace safety in their markets. The following summary covers the most relevant regulations for Colombia and other key markets.<\/p>\n

Colombia \u2014 ICONTEC and NTC Standards:<\/strong> The Instituto Colombiano de Normas T\u00e9cnicas y Certificaci\u00f3n (ICONTEC) publishes the Normas T\u00e9cnicas Colombianas (NTC) that govern automotive replacement parts and mechanical components. Importers and distributors of automotive drivetrain components must ensure compliance with applicable NTC standards and may need to register products with the Superintendencia de Industria y Comercio (SIC). The Colombian Ministry of Transport (Ministerio de Transporte) additionally regulates vehicle roadworthiness through periodic Technical Vehicle Inspection (Revisi\u00f3n Tecnicomecanica), where worn or defective driveline components including universal joints can lead to inspection failure.<\/p>\n

Colombia \u2014 Resolution 3500 (Revisi\u00f3n Tecnicomecanica):<\/strong> Under Resolution 3500 and subsequent amendments, vehicles registered in Colombia are required to undergo regular technical-mechanical inspections at certified inspection centres (CDA). A universal joint in car or truck service that shows play, vibration, or wear beyond specified limits is grounds for inspection failure, underscoring the importance of timely universal joint replacement with parts that meet dimensional and hardness specifications.<\/p>\n

United States \u2014 SAE J-Series Standards:<\/strong> SAE International publishes standards including SAE J-901 (Universal Joints and Driveshafts) that define dimensional series, load ratings, and testing requirements for universal joints used in automotive and truck applications. EP series cross dimensions are referenced to Spicer and SAE dimensional series, ensuring compatibility with vehicles designed to North American standards \u2014 relevant for Colombian fleets operating imported North American trucks.<\/p>\n

European Union \u2014 Machinery Directive 2006\/42\/EC:<\/strong> For industrial machinery incorporating universal joints and PTO shafts, the EU Machinery Directive requires that rotating driveline components meet specific guarding and safety design requirements. Machines sold into the EU or designed to EU standards must use driveshaft components that comply with EN ISO 5674 (tractors and machinery for agriculture \u2014 guards for power take-off drives). This is relevant for Colombian exporters of agricultural equipment destined for European markets.<\/p>\n

ISO Quality Standards:<\/strong> Production under ISO 9001:2008 quality management certification \u2014 independently verified by DQS GmbH and the IQNet network \u2014 ensures that the manufacturing processes and inspection procedures governing every universal joint batch meet internationally recognized quality system requirements. ISO\/TS 16949, the automotive-sector extension of ISO 9001, further addresses the specific quality planning, production, and supplier management requirements relevant to automotive component manufacturers.<\/p>\n

Brazil \u2014 INMETRO:<\/strong> Neighbouring Brazil’s National Institute of Metrology, Quality and Technology (INMETRO) mandates conformity assessment for certain automotive aftermarket parts. Distributors exporting EP universal joints into Brazil should verify current INMETRO portaria requirements for drivetrain components to ensure unobstructed customs clearance and market access in the Mercosur trading bloc, which includes Colombia as an associated member.<\/p>\n<\/div>\n

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8. \u5173\u4e8e\u6211\u4eec<\/h2>\n

We are a specialist manufacturer and global supplier of transmission parts, with universal joints at the centre of our product offering. Our facility is equipped with plasma cutting machinery, CNC gear hobbing machines, precision CNC turning centres, drilling machining centres, gantry machining centres, and vertical broaching machines \u2014 the full range of equipment required to produce dimensionally consistent, heat-treated universal joint components at scale.<\/p>\n

Quality assurance is embedded throughout the production process. Incoming materials are checked, in-process dimensions are verified at each machining stage, and finished parts pass through surface roughness testers, shot-peening strength testers, metalloscopes, profile projectors, three-axis CMMs, and microhardness testers before final packaging. Our quality system is certified to ISO 9001:2008, certified by DQS GmbH and registered with the IQNet international certification network.<\/p>\n

\u8f66\u95f4<\/h3>\n
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\"\u7814\u8ba8\u4f1a
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\n\"\u7814\u8ba8\u4f1a<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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9. \u76f8\u5173\u4ea7\u54c1<\/h2>\n

We supply a full portfolio of automotive drivetrain components, allowing buyers to source complete axle-to-wheel system parts from a single supplier. The universal joint works in concert with the following complementary products:<\/p>\n

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\"Wheel<\/p>\n

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Wheel Hub<\/h3>\n

The wheel hub connects the vehicle’s suspension and brake system to the wheel, transmitting both driving torque from the axle and braking force from the disc or drum. Pairing a correctly specified universal joint with a matching wheel hub ensures axial alignment and avoids premature bearing wear at the hub interface. We offer a full range of automotive wheel bearing and hub assemblies compatible with the vehicles served by our U-joint series, supporting one-stop procurement for distributors.<\/p>\n

Explore Wheel Hub products \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

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\"Rear<\/p>\n

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\u8f66\u8f74<\/h3>\n

Our axle range covers half-shafts, rear axle shafts, and drive axles for passenger cars, light trucks, and SUVs. Axles work in tandem with universal joints to transmit engine torque from the differential to the driven wheels. When performing a universal joint replacement, replacing a worn or damaged axle shaft at the same service interval reduces the chance of a repeat failure and lowers total labour cost for fleet operators and independent workshops across Colombia and Latin America.<\/p>\n

Explore Axles products \u2192<\/a><\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h2>\n
\nQ1. What is a universal joint and how does it work in a truck drivetrain?<\/summary>\n

A universal joint is a coupling that links two shafts operating at an angle, allowing the transmission of rotary torque even as the angle changes during suspension travel or steering. In a truck drivetrain, the U-joint connects the transmission output shaft to the driveshaft, and the driveshaft to the rear axle pinion, accommodating the vertical movement of the axle under load. The spider-and-yoke mechanism inside the joint pivots through the bearing cups to maintain continuous torque transfer without binding.<\/p>\n<\/details>\n

\nQ2. What is the main function of a universal joint in automotive steering systems?<\/summary>\n

In steering applications, a steering column universal joint (or steering universal joint) allows the steering column to change direction \u2014 typically around the firewall or brake booster \u2014 without interrupting the transfer of steering input from the wheel to the rack or gearbox. The quality and precision of this component directly affects steering feel: a worn or incorrectly specified steering column universal joint introduces looseness (lash) or binding, compromising driver control and safety.<\/p>\n<\/details>\n

\nQ3. Which universal joint types are available for heavy-duty truck applications in Colombia?<\/summary>\n

For heavy-duty truck use in Colombia, the most appropriate selections from this series are the 2HWD,2RND variants \u2014 particularly part numbers 5-303X, R221, HD205-3, 5-330X, S-C673, and S-C674. These feature heavy wing bearings that handle the higher axial loads generated by large driveshaft assemblies. Cross-reference numbers for Spicer, Precision, and Caterpillar allow workshops to identify the correct replacement using the part numbers already in their catalogues.<\/p>\n<\/details>\n

\nQ4. When should I schedule a universal joint replacement for my vehicle in Colombia?<\/summary>\n

Replacement is typically needed when you notice a clunking noise on acceleration or deceleration, vibration in the driveshaft at highway speeds, or visible wear and grease leakage at the bearing caps. In Colombia, where many roads include speed bumps (polic\u00edas acostados) and unpaved secondary roads, U-joints often experience higher shock loading than in markets with smoother road surfaces, so it is sensible to inspect the joint every 40,000\u201360,000 km as part of a driveline service.<\/p>\n<\/details>\n

\nQ5. What is the difference between a grooved round bearing and a plain round bearing in a U-joint?<\/summary>\n

The grooved round bearing cup has precision-machined internal circumferential grooves that help distribute and retain grease across the needle roller array more evenly under rotating conditions. This extends grease film life and reduces the frequency of re-lubrication required. The plain round bearing cup uses a smooth internal bore without grooves; it is suitable for applications where the joint is permanently sealed with long-life grease and re-lubrication is not performed in service. Selecting between the two depends on the maintenance schedule and operating conditions of the application.<\/p>\n<\/details>\n

\u7f16\u8f91\uff1aPXY<\/p>","protected":false},"excerpt":{"rendered":"

EP Universal Joints with 2 wing bearings and 2 grooved\/plain round bearings are precision-engineered driveline components. Sizes feature bearing diameters (D\/CtoC) from 25.4mm to 52.37mm, with lengths (L1\/L2) ranging 41.67\u2013213.2mm. Cross-referenced with Spicer, Precision, Rockwell, and Caterpillar part numbers, these joints deliver reliable torque transfer and durability for heavy-duty applications, matching OEM specifications.<\/p>","protected":false},"featured_media":798,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[47],"product_tag":[],"class_list":["post-797","product","type-product","status-publish","has-post-thumbnail","product_cat-universal-joint","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/automatictransmissionpart.com\/zh\/wp-json\/wp\/v2\/product\/797","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/automatictransmissionpart.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/automatictransmissionpart.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/automatictransmissionpart.com\/zh\/wp-json\/wp\/v2\/media\/798"}],"wp:attachment":[{"href":"https:\/\/automatictransmissionpart.com\/zh\/wp-json\/wp\/v2\/media?parent=797"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/automatictransmissionpart.com\/zh\/wp-json\/wp\/v2\/product_brand?post=797"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/automatictransmissionpart.com\/zh\/wp-json\/wp\/v2\/product_cat?post=797"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/automatictransmissionpart.com\/zh\/wp-json\/wp\/v2\/product_tag?post=797"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}