493 Tapered Roller Bearing Outer Ring (Cup) 136.525x22.225mm

Targeted Replacement: Allows mechanics and rebuilders to replace worn or scored outer rings without discarding perfectly functional inner cone assemblies.
Super-Finished Surface: Micro-level polishing on the inner raceway minimizes rolling resistance and prevents localized heat generation.
High Rigidity: Thick-walled outer construction resists deformation when press-fitted into heavy cast-iron or steel housings.
Precise Tolerances: Manufactured to exact ABMA imperial standards to guarantee perfect seating and alignment.

Technical Data

Technical Parameter	Metric Value
Outer Diameter (D)	136.525 mm
Cup Width (C)	22.225 mm
Inner Bore (Assembly)	Varies based on mating cone
Precision Standard	ABEC-1 / ISO P0

Product Specifications

Specification	Details
Item Type	Tapered Roller Bearing Outer Ring (Cup)
Model Number	493
Material	Vacuum-Degassed GCr15 Chrome Steel
Surface Finish	Super-finished Raceway
Compatibility	Mates with 497, 497A, 495 Cones

Product Introduction

The 493 is a precision-manufactured outer ring (cup) designed for use in imperial tapered roller bearing assemblies. With an exact outer diameter of 136.525 mm and a width of 22.225 mm, this cup is the critical mating component for several inner cone assemblies, most notably the 497, 497A, and 495 series. Supplied as a standalone SKU, it is ideal for B2B repair facilities and OEM manufacturers who require targeted replacement parts without purchasing the full bearing set. Forged from high-purity GCr15 chrome steel, the 493 cup ensures a flawless, low-friction raceway surface.

Applications

Heavy truck and trailer wheel hub assemblies.
Industrial gearboxes requiring independent cup/cone replacements.
Construction and earthmoving equipment axles.

FAQ

Q: Why buy the 493 cup separately?
A: In many maintenance scenarios, only the outer housing raceway (cup) sustains damage; buying just the cup is a highly cost-effective B2B sourcing strategy.
Q: Does this include the roller assembly?
A: No, this SKU is strictly the outer ring (cup). The inner ring with rollers (cone) must be purchased separately if needed.

OEM & Custom Service

We offer specialized B2B services including custom batch marking, VCI bulk roll packaging for high-volume assembly lines, and customized anti-corrosion treatments.

Packing & Delivery

Cups are nested securely, coated in rust-inhibitive oil, wrapped in heavy-duty VCI paper, and packed in reinforced cardboard tubes or export boxes.