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Description
274301 – Hydro-Gear .312" Ground Steel Ball (Genuine OEM Precision Ball Bearing Component)
The Hydro-Gear 274301 Ball (.312 Ground) is a genuine OEM precision-ground steel ball designed for use in compatible Hydro-Gear hydrostatic transmissions, hydraulic pumps, and transaxles. Manufactured to Hydro-Gear's exact engineering specifications, this 5/16-inch (.312") precision ground ball is used within hydraulic and mechanical assemblies to provide accurate sealing, check valve operation, or component positioning for reliable transmission performance.
Constructed from hardened, precision-ground bearing steel, the 274301 delivers exceptional wear resistance, dimensional accuracy, and long service life under high-pressure hydraulic conditions.
Product Details
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Part Number: 274301
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Brand: Hydro-Gear
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Part Type: Precision Ground Steel Ball
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Ball Diameter: .312 Inch (5/16")
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Material: Hardened Precision Bearing Steel
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Function: Check valve, hydraulic control, or internal transmission component
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Installation: Direct OEM Replacement
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Genuine Hydro-Gear OEM Part
Key Features
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Genuine Hydro-Gear OEM precision ball
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Precision-ground .312-inch (5/16") diameter
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Hardened bearing steel construction
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Excellent wear and corrosion resistance
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Designed for high-pressure hydraulic applications
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Maintains accurate hydraulic system operation
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Direct OEM replacement
Function
The Hydro-Gear 274301 Ground Ball serves as a precision internal component within compatible hydrostatic transmissions and hydraulic pumps. Depending on the application, it may function as part of a check valve, pressure control valve, or hydraulic sealing assembly, helping maintain proper hydraulic pressure, fluid flow, and transmission efficiency.
Compatible Equipment
The 274301 Precision Ground Ball is used in numerous compatible Hydro-Gear hydrostatic transmissions and hydraulic systems commonly installed on:
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Commercial zero-turn mowers
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Residential zero-turn mowers
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Stand-on mowers
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Commercial turf maintenance equipment
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Professional grounds maintenance equipment
Hydro-Gear transmissions are widely used by manufacturers including:
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Ariens
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Gravely
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Scag
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Toro
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Exmark
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Ferris
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Hustler
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Bad Boy
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Wright
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Bob-Cat
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Spartan
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Cub Cadet
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And many other outdoor power equipment brands
Always verify your Hydro-Gear transmission model and illustrated parts diagram before ordering to ensure compatibility.
Who Is This For?
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Commercial landscapers
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Outdoor power equipment repair technicians
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Hydraulic transmission specialists
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Equipment fleet managers
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Professional service centers
Recommended Property Size
Ideal for equipment maintaining:
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Residential estates
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Commercial landscaping operations
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Golf courses
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Municipal parks
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Sports complexes
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Industrial facilities
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Large commercial properties
Pros
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Genuine Hydro-Gear OEM quality
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Precision-ground to exact tolerances
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Hardened bearing steel construction
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Excellent wear resistance
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Reliable hydraulic system performance
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Long service life
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Direct OEM replacement
Cons
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Compatible only with specified Hydro-Gear transmission models
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Installation requires proper transmission disassembly and should follow the manufacturer's service procedures
Comparison – Hydro-Gear 274301 vs Aftermarket Precision Balls
Hydro-Gear 274301 OEM Ground Ball
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Genuine OEM specifications
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Precision-ground bearing steel
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Exact dimensional accuracy
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Superior wear resistance
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Designed specifically for Hydro-Gear hydraulic systems
Aftermarket Replacement Balls
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May vary in diameter tolerance
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Variable material hardness
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Reduced hydraulic sealing accuracy
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Potentially shorter service life
Why Buy from Barry's Power Equipment?
Barry's Power Equipment supplies genuine Hydro-Gear OEM transmission components trusted by commercial landscapers, equipment dealers, and professional repair technicians.
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Genuine OEM Hydro-Gear replacement parts
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Fast nationwide shipping
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Competitive pricing
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Expert technical support
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Extensive inventory for Hydro-Gear, Ariens, Gravely, Scag, Toro, Exmark, Ferris, Hustler, Cub Cadet, Honda, Kawasaki, Kohler, STIHL, and many other leading outdoor power equipment brands.
