SKF 1630 Composite Hub Cap | 6-Bolt Trailer Axle | Center-Fill Magnetic

I've updated the Shuco (Shur-Co) listing for the SKF/CR 1630 hub cap with the specific dimensions your customers need to verify fitment.

SKF / CR 1630 Composite Center-Fill Hub Cap | 6-Bolt Trailer Axle

Maximize your wheel end protection with the heavy-duty durability and advanced sealing of the SKF 1630 Composite Hub Cap.

The SKF/CR 1630 is a premium composite hub cap specifically engineered for universal trailer axle applications. Featuring a reinforced design and magnetic protection, this hub cap is built to withstand the demanding environments of long-haul trucking while ensuring your bearings remain properly lubricated and free of contaminants.

Detailed Product Dimensions

Verify these precision measurements for a perfect fit on your 6-bolt trailer configuration:

• Bolt Circle Diameter: 5.5000"

• Number of Bolts: 6

• Bolt Size: 0.3490"

• Outer Diameter (OD): 6.2500"

• Inner Diameter (ID): 4.2700"

• Axle Extension: 2.1250" (Internal clearance for spindle/nut)

• Total Height: 2.7270"

Technical Specifications

Industry Cross-Reference

• CR: 1630

• Freightliner: CHR1630, XCR 1630

• International (IHC): CR1630, 2016460C91, 1695989C91

• Ford: 93001630, 96581630, 97591630

• Stemco: 340-4014, 343-4014

Key Features & Benefits

• Reinforced Flange: The embedded aluminum ring strengthens the mounting area, providing superior resistance to impacts and preventing common flange failures.

• Magnetic Particle Trap: The side fill plug actively captures metallic wear debris in the oil, preventing bearing damage and extending service intervals.

• Leak-Proof Sealing: A molded pressure ridge improves the contact seal against the hub, while the side plug O-ring provides extra security against lubricant loss.

• Vented Center-Fill Design: Helps prevent internal pressure buildup, which is the leading cause of wheel seal failure.

• Universal Fit: Designed for standard 6-bolt trailer hubs and compatible with all common lubricants.

Installation & Safety

• Professional Grade: For safe and lasting repairs, SKF recommends installation by a knowledgeable mechanic using the correct tooling and following vehicle mounting instructions.

• Technical Access: Scan the QR code on the box label for instant access to detailed SKF technical information and specific mounting instructions.