NSK KH30028 Wheel Bearing Kit - Rear

NSK PROKIT Wheel Bearing Kit for Rear Service

The NSK PROKIT KH30028 is a rear wheel bearing kit built for the 2008-2015 Scion xB. It is a non-driven, ABS-equipped wheel bearing and hub assembly engineered for precise hub support, stable wheel mounting, and consistent sensor signal performance.

NSK’s PROKIT line focuses on vehicle-specific fit, low-friction bearing operation, and sealed-for-life service design. For Scion xB rear wheel bearing replacement, KH30028 brings OE-style engineering to a common driveline service need.

Key Features

• Vehicle-specific rear wheel bearing kit for 2008-2015 Scion xB
• ABS equipped with sensor-style tone ring/sensor/magnetic encoder configuration
• Superfinished precision-matched bearing raceway for low-friction operation
• Advanced multi-lip sealing for resistance to water and contamination
• Sealed-for-life design with premium all-weather grease
• Rear, non-driven application
• Wheel stud size: M12x1.5
• 5-wheel-stud hub configuration

Detailed Description

NSK KH30028 is a rear wheel bearing kit for the 2008-2015 Scion xB, engineered as a direct-fit hub and bearing assembly for the rear position. The PROKIT product line is built around OE technology and application-specific geometry, helping maintain proper wheel support, ABS signal integrity, and smooth rotation under everyday driving loads. This part number, KH30028, is a practical choice for rear wheel bearing service on the Scion xB when the original hub assembly shows wear, noise, or looseness.

Construction details include a 4-bolt mounting flange, 5-wheel-stud hub layout, and ABS sensor-style integration. NSK’s bearing design uses precision raceway finishing and multi-lip sealing to help reduce friction and protect internal components from moisture and road contamination. The result is a sealed hub assembly intended for long service intervals with minimal maintenance.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

• Rear wheel bearing noise such as humming, growling, or rumbling
• Wheel play or looseness at the rear hub
• ABS warning light concerns related to hub sensor signal issues
• Rough wheel rotation caused by bearing wear or contamination
• Rear hub service needs on a 2008-2015 Scion xB

Installation Notes and Tips

Confirm rear-position fitment before ordering: Fits 2008-2015 Scion xB, rear. Verify ABS sensor style, flange dimensions, and wheel stud specification against the original hub assembly before installation. Clean the knuckle mounting surface thoroughly and inspect surrounding components for wear that could affect hub alignment or bearing life.

Because this is a sealed hub assembly, service is typically performed as a complete unit rather than by repacking or adjusting the bearing. Use proper torque procedures for the mounting bolts and wheel fasteners during reassembly.

Quality Assurance

NSK is a global bearing manufacturer with OE-level engineering experience across major automotive applications. The PROKIT line is built to deliver application-specific fit and durable bearing performance for demanding road conditions.