1810 Universal Joint | Class 8 Super-Heavy U-Joint Cross Kit (50x118mm)
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Manufacturer supplier exporter of the universal joint.
| Dimension | Metric | Imperial | Notes |
|---|---|---|---|
| A — Cap Outer Diameter | 50 mm | 1.969″ | Bearing cap OD; determines yoke bore size |
| B — Snap-Ring Span | 118 mm | — | Outside face to outside face across opposite caps |
| C — Groove Width | 2.0 mm | — | Snap-ring (circlip) seat width |
| Peak Torque Capacity | 2200 Nm | At 0° operating angle | |
| Max Operating Angle | 25° | Continuous duty | |
| Material | Case-hardened Cr-Mo alloy steel | Surface HRC 58–62 | |
| Grease Fitting | 1/4-28 UNF Zerk (greaseable) | Non-greaseable sealed version available | |
| Surface Finish | Manganese phosphate + oil | 240 h salt-spray resistance | |
| OEM Cross References | Spicer 5-1810X | Dana 1810 | Moog — | ||
What Is the 1810 Universal Joint?
Sourced from Jiukai’s 12,000 m² manufacturing facility in Haining, Zhejiang, the 1810 universal joint (model 50.01) matches every critical dimension of the original fitment: 50 mm cap OD, 118 mm snap-ring span, and a 2.0 mm groove cut to h6 tolerance. It is the aftermarket replacement of choice for Class 8 semi-trucks, heavy construction equipment, and off-highway industrial machinery.
All three OEM references — Spicer 5-1810X, Dana 1810, and Moog — — share exactly the same SAE 1810 series dimensional envelope. Our Jiukai 50.01 is manufactured to the same standard and installs without modification into any yoke or flange originally engineered for those references. When you order from universaljoint.net, you receive a part whose every critical dimension has been independently verified against the SAE 1810 specification before leaving the production line.
Common applications for the 1810 series include Class 8 semi-trucks, heavy construction equipment, and off-highway industrial machinery. Well-known vehicle platforms that use this cross kit include the Peterbilt 567, Kenworth W990, Freightliner 122SD, Volvo FH16, Scania R650, Caterpillar haul trucks, among many others. The universal joint size chart above details every SAE series alongside our Jiukai model numbers for rapid identification.
Measure the cap outer diameter (A) and snap-ring span (B) on your existing joint. The 1810 series uses a 50 mm (1.969″) cap OD and a 118 mm span. If those figures do not match, visit the Spicer 5-1810X cross reference to identify the correct series, or contact our engineering team for direct assistance.
Key Features of the Jiukai 1810 Cross Kit
Forgings eliminate the porosity and directional weakness inherent in cast blanks. The 1810-series cross is forged, then heat-treated in a controlled atmosphere furnace to guarantee consistent hardness across every production run rather than batch-to-batch variation common in lower-cost alternatives.
A 50 mm cap OD ground to h6 (−0.000 / −0.013 mm) mates with the 1.969″ nominal bore in OEM yokes without selective fitting. Bore and cap are designed to achieve the same interference class that the OEM supplier specifies, protecting the yoke from fretting corrosion.
Full-complement needle rollers, individually sorted by diameter to DIN 5402-1 Class C, are assembled dry and then packed with grease before cap installation. The sorting eliminates roller diameter spread, ensuring uniform load sharing from the first operating cycle.
The 1/4-28 UNF thread is compatible with every standard grease gun in production today, from hand-operated cartridge guns to pneumatic fleet-service equipment. No adapter, no special tooling, no excuse to defer a service interval.
Manganese phosphate with supplemental rust-inhibiting oil passes Jiukai’s 240-hour neutral salt-spray test (ISO 9227). Parts arriving at tropical or coastal workshops with oxidised journals are a hidden cost; this finish eliminates that risk before the first installation.
Certification scope covers design, procurement, production, and final inspection. Third-party auditors from SGS confirm system compliance annually. CE marking ensures the product meets EU Machinery Directive 2006/42/EC requirements for drive components placed on the European market.
1810 Universal Joint Dimensions vs Neighbouring Series
The 1710 universal joint below shows your series in context. The highlighted row is the 1810. Use cap OD (A) and span (B) together to positively identify any cross kit — a single dimension alone is insufficient because some series share one value while differing in the other.
| SAE Series | Cap OD (mm) | Cap OD (in) | Span (mm) | Spicer Ref | Typical Use |
|---|---|---|---|---|---|
| 1310 | 27 | 1.062″ | 74.6 | 5-153X | Light trucks, SUVs, half-ton pickups |
| 1330 | 30.2 | 1.188″ | 92 | 5-178X | 3/4-ton trucks, vans |
| 1350 | 35 | 1.375″ | 106.5 | 5-1350X | 1-ton HD trucks, tow packages |
| 1410 | 41 | 1.625″ | 108 | 5-1410X | Class 4-5 medium-duty trucks |
| 1810 ← You are here | 50 | 1.969″ | 118 | 5-1810X | Class 8 semi-trucks, heavy construction equipment, and off-highway industrial machinery |
| 1480 | 41 | 1.625″ | 118 | 5-1480X | Class 4-6 medium commercial |
| 1710 | 48 | 1.890″ | 127 | 5-1710X | Class 6-8 heavy trucks |
| 1810 | 50 | 1.969″ | 118 | 5-1810X | Class 8 semis, off-highway |
Applications
The 1810 U-joint cross kit is the OEM specification for the following driveline positions and vehicle categories:
- ✓Class 8 semi-truck and long-haul tractor propshafts (Peterbilt 567, Kenworth W990)
- ✓Off-highway haul trucks — Caterpillar 769/773 and Komatsu HD325
- ✓Heavy mining equipment — rigid-frame and articulated dump trucks
- ✓Oil-field drilling rig rotary drive shafts
- ✓Large industrial press and rolling-mill cardan shaft assemblies
- ✓Construction cranes — crawler and tower crane slew drives
- ✓Port equipment — straddle carriers and reach stackers
Snap Ring and Packaging
The 1810 series cross kit uses an external snap-ring (C-clip) with a groove width of 2.0 mm. Snap rings are included in every shipment. The ring seats in the groove on the outer face of the yoke bore and is the primary axial retention method for the bearing cap.
An inside-snap-ring variant (suffix -IC) is available for yokes whose ear design does not accommodate external retention. Contact [email protected] for availability and lead times on non-standard configurations.
Frequently Asked Questions
Available Variants and Ordering
| Part Number | Description | Grease Fitting | Lock Type |
|---|---|---|---|
| 50.01 | Standard cross kit — external snap ring, greaseable | Yes — Zerk 1/4-28 UNF | External C-clip |
| 50.01-NG | Non-greaseable (sealed-for-life) | None (sealed caps) | External C-clip |
| 50.01-IC | Inside-snap-ring variant | Yes — Zerk 1/4-28 UNF | Internal C-clip |
Minimum order quantities, volume pricing tiers, and OEM private-label packaging are available for wholesale and trade buyers. Email [email protected] with your target quantity and destination port for a freight-inclusive quotation.
Contact us at [email protected] or use the enquiry form. We respond within 24 hours.
Browse the Full Cross Kit Series
1810 Universal Joint: Designed for Extreme-Duty Conditions
The 1810 cross kit was developed to address the torque and shock demands of Class 8 super-duty and off-highway equipment that consistently exceed the capacity of the 1710 series. Increasing the cap OD from 48 mm to 50 mm raises the needle-roller contact area at the journal-to-cup interface by fifteen to twenty percent for the same cup depth, and the snap-ring groove width increases from 1.75 mm to 2.0 mm, enabling a stiffer snap ring to resist the high axial separating forces in mining and construction applications where shock loads can briefly reach two to three times the rated driveline torque. The 2,200 Nm peak provides a 30 to 40 percent safety margin over the nominal drive motor torque in 150-tonne mining haul trucks.
The Jiukai 50.01 is also specified for oil-field rotary drives, large industrial press main shafts, and rolling-mill cardan assemblies where peak reversal torque exceeds 2,000 Nm. In these stationary industrial applications at near-zero operating angle, service life is governed by grease degradation from heat and process contamination rather than fatigue; the manganese phosphate and oil coating on the 50.01 provides barrier corrosion protection during extended shutdown periods common in oil-field and industrial maintenance environments. For global CIF pricing and full export documentation including CE Declaration of Conformity, contact [email protected] or use the online enquiry form.
1810 Universal Joint: Monitoring Wear in Heavy Duty Applications
In Class 8 and off-highway applications, a failing 1810 universal joint is particularly dangerous because driveshaft separation at operating speed or under load can cause catastrophic secondary damage to the vehicle or equipment. Off-highway mining equipment should be inspected at every 250-hour maintenance interval: check that Zerk fittings produce fresh grease purge, inspect cap lip seals for cracking or extrusion, and perform a rotational lash check at each yoke position. On-highway Class 8 trucks should include a driveshaft inspection at every PM service, regardless of whether vibration has been reported by the driver. The 1810 cross kit carries the widest snap-ring groove of any standard SAE series, providing the strongest axial retention available, but early replacement at the first confirmed sign of bearing lash remains the correct maintenance decision in Class 8 and off-highway service.
1810 Universal Joint: Heavy Equipment Maintenance Notes
The 1810 universal joint operates in the most demanding duty cycles of any standard SAE series: off-highway haul trucks, oil-field equipment, and Class 8 semis carrying oversize loads. In these applications, the maintenance interval for the Jiukai 50.01 should be set by the operating environment rather than by a fixed kilometre count. Off-highway equipment typically requires greasing every 250 operating hours; on-highway Class 8 applications use a 50,000 km interval as a starting point, adjusting downward if the vehicle regularly operates at maximum GCW or in mountainous terrain.
When replacing a 1810 cross kit, the 2.0 mm snap-ring groove is the widest in any standard SAE series and requires the correct-width snap ring for proper retention — a 1.75 mm ring from a 1710 kit will not engage the groove correctly. Confirm you are fitting the -IC (inside snap ring) or standard external variant as required by the yoke design. Press all four 50 mm caps squarely, verify ring seating with a feeler gauge, and grease immediately. Log replacement date, unit hours, and greasing schedule on the vehicle maintenance card.
Global Supply: 1810 Universal Joint for Off-Highway and Class 8
Off-highway and mining operators sourcing 1810 universal joints typically require small-to-medium batch quantities with short lead times, as equipment downtime in extractive industries carries a very high cost per hour. Jiukai stocks the 50.01 cross kit for immediate dispatch on orders up to 100 pieces, with production lead times of 15 days for larger quantities.
We supply to mining equipment operators in Australia, Canada, South Africa, and Chile, and to Class 8 truck distributors across North America and Europe. All export shipments include a full documentation package: commercial invoice, packing list, bill of lading, certificate of origin, and optional CE declaration of conformity. For expedited freight options and spot pricing, email [email protected].