54KWH02 Japan NSK KOYO auto Wheel hub unit 90369-T0003 DU5496-5 54X96X51MM
54KWH02 Japan NSK KOYO auto Wheel hub unit 90369-T0003 DU5496-5 54X96X51MM
Industry-specific attributes
Other attributes
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New code
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DU5496-5 90369-T0003 bearing
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|---|---|
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Bearing type
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Deep groove ball bearings
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Brand
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NSK
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Business Type
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Japan NSK bearings Distributor
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Id (mm)
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54 |
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OD (mm)
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96 |
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B (mm)
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51 |
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Cr(KN)
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14
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Cor(KN)
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7.85
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Speed for grease lubrication (r/min)
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13000
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Oil lubrication speed (r/min)
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15000
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Weight(kg)
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0.128
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Material
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Chrome steel or Stainless steel
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Delivery time
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2-3 days of stock, 15-30 days for OEM
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Packing
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Standard NSK bearing package
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Payment terms
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T/T, Western Union, Paypal
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Guarantee
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2 years
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FAQ1: 2. What is the difference between NSK and KOYO 54KWH02 bearings?
Both NSK and KOYO are highly reputable Japanese bearing manufacturers. For a bearing with the same designation like “54KWH02” (or the equivalent OEM part number), the differences will generally be minimal in terms of core specifications, dimensions, and performance. Both brands adhere to strict industry standards.
Quality: Both are considered premium quality brands. You can expect excellent durability and performance from either.
Manufacturing Tolerances: While both meet exact specifications, there might be minuscule differences in manufacturing tolerances, but these are typically within acceptable ranges and won’t affect interchangeability or primary function.
Internal Design Philosophy: Each company might have its own proprietary steel alloys, grease formulations, or slightly different seal designs, which they believe offer an edge in terms of longevity or resistance to specific conditions. However, these are usually minor enhancements, not fundamental differences.
Pricing/Availability: Sometimes one brand might be slightly more readily available or priced differently, depending on your location and supplier.
In short, for an equivalent part number, you can confidently use either NSK or KOYO; both are excellent choices.
FAQ2: What causes noise in wheel hub units?
Noise from a wheel hub unit (WHU) is a common symptom of a failing unit. Here are the primary causes:
Worn or Damaged Bearings: This is the most common reason. Over time, the internal components (balls or rollers, races) wear down, causing excessive play and friction. This leads to:
Growling or humming: Often changes with vehicle speed or when turning.
Grinding: Indicates more severe damage.
Clicking/Clunking: Could indicate loose components or severe wear.
Lack of Lubrication: If the grease inside the bearing dries out, leaks out (due to a damaged seal), or becomes contaminated, friction increases dramatically, causing heat and noise.
Contamination: Water, dirt, or debris entering the bearing (often due to a failed seal) can cause abrasive wear and damage the internal components.
Improper Installation: If the hub unit isn’t torqued correctly, or if it’s damaged during installation, it can lead to premature failure and noise.
Impact Damage: Hitting a pothole or curb can damage the bearing internally, even if there’s no visible external damage.
Manufacturing Defects: Although rare with reputable brands, a manufacturing flaw can lead to premature failure.
