Genuine INA Cylindrical Roller Bearings NUP1007EM NN3008 MA5214-MA5217 TV [WARN] draft identifier mismatch

Traceable Batch Origins — Every INA MA5218 TV MA5217 TV MA5216 TV MA5215 TV MA5214 TV cylindrical roller bearing ships with manufacturer lot documentation for full lifecycle tracking.

Technical Specifications

Note: The TV suffix requires manufacturer catalog confirmation to verify exact cage material and design specifics against standard TVP variants.

Application Suitability

Why Suffix Accuracy Matters for the INA MA5218 TV MA5217 TV MA5216 TV MA5215 TV MA5214 TV cylindrical roller bearing

Matching the base number is never enough to prevent field failure.

Procurement teams often approve cross-references that align on the core designation but overlook critical suffix variations. When clearance, cage material, or precision grades are mismatched, the resulting thermal binding or cage disintegration leads to severe unplanned downtime [NEED_CITE: rolling bearing failure mode classification per ISO 15243]. I have seen facilities install standard clearance units where C3 was strictly required for thermal expansion, causing the inner ring to seize on the shaft within hours of startup.

Aligning Specifications with Motor and Gearbox Demands

Selecting the correct INA MA5218 TV MA5217 TV MA5216 TV MA5215 TV MA5214 TV cylindrical roller bearing requires looking past the basic part number. Our technical review process ensures that the specific cage design and internal clearance perfectly match your equipment’s operational profile. We verify every suffix to guarantee the component handles the exact radial loads and rotational speeds your application demands.

Navigating Thermal and Mechanical Operating Extremes

Electric motors and industrial gearboxes subject components to intense radial forces and significant temperature fluctuations. High rotational speeds generate internal friction heat, making the correct radial internal clearance essential to prevent the rollers from skidding or binding against the raceways. Furthermore, vibration levels must be tightly controlled; selecting an appropriate Z-class vibration grade ensures smooth operation and protects adjacent precision components from destructive harmonic resonance [NEED_CITE: impact of vibration on bearing lifespan per ISO 281].

Decoding Cage Materials and Internal Geometry

The separable design with three inner ring flanges provides excellent axial guidance and simplifies mounting. Cage material selection is critical for these specific applications. Brass cages offer superior durability and heat dissipation under heavy loads and high speeds, while steel cages provide a cost-effective solution for standard operating conditions. The Z1V1 to Z3V3 vibration classifications indicate the strictness of the manufacturing tolerances, directly influencing the acoustic and mechanical smoothness of the final assembly.

The Hidden Costs of Overlooking Suffix Details

Ignoring suffix details inevitably leads to premature failure and catastrophic damage to surrounding machinery. A mismatched cage material might withstand initial installation but will rapidly degrade under unexpected thermal loads, voiding equipment warranties. Relying on incomplete cross-references compromises the entire drive system, turning a simple component replacement into a major operational crisis [NEED_CITE: economic impact of unplanned machinery downtime].

Securing Your Supply Chain with Verified Components

We prevent cross-reference errors by matching clearance, cage material, and precision simultaneously, not just the base designation. Our inventory covers the full suffix range, ensuring you receive the exact configuration your OEM equipment requires. Every shipment includes batch traceability to the manufacturer, eliminating the risk of counterfeit parts with soft inner rings. We also provide application-based selection reviews to validate load, speed, and temperature parameters before dispatch.

Documentation & Authenticity

• Certificate of Conformity confirming original manufacturer production standards.
• Batch and lot traceability linking each unit to its specific forging and machining run.
• Official app QR verification to instantly authenticate the product on the shop floor.
• Material test report validating the metallurgical composition of rings and rolling elements.
• Dimensional and running accuracy inspection report verifying strict geometric tolerances.

Storage, Handling & Mounting

• Store in original packaging to protect the separable inner and outer rings from humidity and physical damage.
• Use clean gloves during handling to prevent skin acids from compromising the 60-64 HRC hardened raceways.
• Utilize induction heating for mounting the inner ring, ensuring even thermal expansion without damaging the flanges.
• Maintain strict cleanliness to prevent debris from affecting the Z1V1-Z3V3 vibration performance during initial run-in.
• Verify the selected C0-C5 clearance class matches the operating temperature before pressing the shaft.

Requesting Technical Validation

To ensure optimal performance, please share your specific radial and axial load profiles, operating speeds, and ambient temperature ranges. Providing the original OEM equipment numbers allows our engineering team to perform a precise cross-reference check. This data enables us to validate the L10 life calculation and confirm the exact suffix configuration required for your machinery.

Frequently Asked Questions

Q: Why does a matching base designation still result in equipment failure?
A: Base numbers only define the basic boundary dimensions. Suffixes dictate internal clearance, cage material, and precision. Installing a standard clearance bearing in a high-temperature motor causes thermal binding, while using a steel cage where a brass one is required leads to rapid wear. We verify all suffixes to ensure complete operational compatibility.

Q: How do CN, C3, and C4 clearances affect electric motor applications?
A: Standard CN clearance is suitable for normal temperatures. High-speed motors generate significant heat, requiring C3 or C4 clearance to accommodate thermal expansion of the shaft and inner ring. Selecting the wrong clearance class causes the rollers to bind against the raceways, generating excessive heat and leading to premature seizure.

Q: What is the significance of the TV suffix on these specific models?
A: The TV suffix typically denotes a specific cage design or material, though it requires manufacturer catalog confirmation to distinguish it from standard polyamide variants like TVP. Verifying this suffix is critical, as substituting the wrong cage material in high-speed applications will cause catastrophic cage failure and subsequent bearing disintegration.

Q: How do vibration grades like Z2V2 and Z3V3 impact machine tool spindles?
A: Higher vibration grades indicate tighter manufacturing tolerances and superior surface finishes on the rolling elements and raceways. For machine tool spindles, specifying Z3V3 ensures minimal acoustic noise and reduces harmonic vibration, which is essential for maintaining tight machining tolerances and achieving high-quality surface finishes on the workpiece.