INA HK2216 Drawn Cup Needle Roller Bearing GCr15 P6 Wholesale

Authorized Channel Sourcing — every INA HK2216 drawn cup needle roller bearing we ship traces back to verified distributor inventory with batch-level documentation for your import records.

Technical Specifications

Application Suitability

Why the Drawn Cup Wall Thickness Matters More Than the Part Number

Matching the base designation without confirming the cup profile tolerance is how outer ring creep begins.

I've watched procurement teams in Latin America match an HK2216 on paper, only to receive a bearing with a slightly thinner drawn cup wall from an unverified supplier. The result is a loose fit in the housing bore — the outer ring spins under load, scoring the aluminum or cast iron seat. Once that housing is damaged, you're not replacing a bearing anymore; you're machining a new housing or scrapping the component entirely [NEED_CITE: bearing housing damage from outer ring creep]. Counterfeit INA HK2216 Needle Roller Bearing Drawn Cup units often pass visual inspection, but the steel hardness falls short of the required HRC range, leading to cup deformation within weeks under heavy radial load. Authenticity verification isn't a paperwork exercise — it's the difference between a scheduled change-out and an unplanned line stoppage.

How the HK2216 Fits Compact Radial Load Envelopes

The drawn cup design eliminates the need for a separate outer ring, letting the bearing seat directly into a precision-machined housing bore. For applications where the radial space envelope is tight — like conveyor roller ends or pivot joints in material handling equipment — this INA HK2216 Needle Roller Bearing Drawn Cup configuration delivers high load capacity within a minimal cross-section. We've helped distributors in Chile and Brazil source these for OEM replacement programs where the original equipment manufacturer specified a needle roller solution to keep assembly weight down while maintaining shaft rigidity.

Radial Loads, Shaft Speed, and the Thermal Reality

The HK2216 handles pure radial loading with no axial component capacity, which means any thrust load in the application must be managed by a separate bearing arrangement. Shaft speeds in drawn cup needle bearings are limited by the sliding contact between needle ends and the cage pockets — excessive speed generates heat faster than the thin cross-section can dissipate it. Operating temperature directly affects lubricant film thickness; if the grease breaks down, needle-to-cage contact accelerates wear [NEED_CITE: needle roller bearing speed limits and lubrication film breakdown]. In heavy machinery environments where ambient temperature already runs high, confirming the lubrication specification against actual operating conditions prevents premature cage failure.

Decoding the HK2216 Specification

The HK prefix identifies this as a drawn cup needle roller bearing with open ends — the thin-walled outer ring is formed by deep drawing rather than machining, which is what enables the compact radial profile. The 22 indicates a 22 mm shaft diameter, and 16 specifies the 16 mm bearing width. The GCr15 steel construction provides through-hardening to consistent hardness levels across the cup and needle elements, resisting brinelling under heavy static loads. The P6 precision class governs the dimensional tolerances on bore, outside diameter, and width — tighter than standard P0, which matters when the drawn cup must achieve a specific interference fit in the housing bore without excessive press force that could distort the thin wall.

The Hidden Cost of Sourcing Without Verification

Correct specification matching paired with traceable sourcing protects against failures that ISO 15243 classifies under material fatigue and mounting damage [NEED_CITE: ISO 15243 bearing failure mode categories]. A bearing with insufficient cup hardness will deform under load, losing the interference fit and allowing outer ring rotation — a failure mode that damages the housing, not just the bearing. Precision mismatches at P0 level where P6 was required mean the press-fit force during installation may crack the drawn cup, causing immediate scrap or delayed failure under vibration. Unplanned downtime on heavy machinery doesn't just cost the bearing price; it costs the labor, the lost production hours, and potentially the replacement housing if the seat is scored.

Sourcing Confidence Built on Traceable Channels

Our procurement model runs through authorized distributor networks rather than direct factory contracts, which means every INA HK2216 Needle Roller Bearing Drawn Cup we supply carries documentation traceable to the manufacturer's production batch. Cross-reference work goes beyond matching the base number — we verify that clearance class, cage specification, and dimensional tolerances align across substitute brands when interchange is requested. For import-dependent markets, we provide country-of-origin documentation and HS code classification so customs clearance doesn't stall at the port. Authenticity verification support includes guidance on using the brand's official verification tools to confirm each batch before installation.

Documentation & Authenticity

• Supplier Certificate of Conformity referencing the specific INA HK2216 batch and lot number
• Material certificate confirming GCr15 steel composition and hardness values for cup and needle elements
• Third-party dimensional inspection report verifying P6 tolerance compliance on bore, OD, and width
• Country-of-origin documentation supporting import customs clearance and buyer verification requirements
• HS code classification and trade compliance support for Latin American and other international shipments

Storage, Handling & Mounting

• Keep the HK2216 in original sealed packaging until installation — the drawn cup's thin wall is susceptible to corrosion if exposed to humidity above 60% before mounting
• Handle with clean gloves to prevent fingerprint acids from initiating surface corrosion on the open-end needle rollers and cup interior
• Mount using a precision mandrel or sleeve that contacts only the outer ring during press-fitting; driving force applied to the inner ring or needles will damage the bearing before it ever sees load
• Verify housing bore tolerance before installation — the drawn cup requires a specific interference fit, and an oversized bore will result in outer ring spin under radial load
• Apply the specified lubricant immediately after mounting if the application uses oil bath or circulating oil systems; drawn cup bearings ship with a light preservative coating, not operational lubrication

Request a Technical Review

Share your application parameters — shaft speed, radial load magnitude, operating temperature, and housing bore tolerance — so we can confirm the HK2216 is the correct selection or identify a better-matched alternative. Provide the OEM equipment number if this is a replacement application, and we'll run a full cross-reference verification against the original specification. Request the documentation package and batch availability for your procurement timeline.

Frequently Asked Questions

Q: How do I verify the authenticity of an INA HK2216 drawn cup needle roller bearing? A: Authentic INA bearings carry batch markings that can be verified through the manufacturer's official channels. We supply each HK2216 with traceable documentation including Certificate of Conformity and batch records, and we guide buyers through the verification process before installation.

Q: What does the HK designation mean for drawn cup needle bearings? A: HK identifies a drawn cup needle roller bearing with open ends, meaning the thin-walled outer ring is formed by deep drawing. The open-end configuration allows the bearing to seat directly against the shaft with maximum needle contact length for radial load support.

Q: Can I substitute a different brand for the INA HK2216? A: Cross-brand substitution is possible, but the replacement must match not just the base dimensions but also the drawn cup wall thickness tolerance, needle profile, cage design, and precision class. We provide complete interchange comparison covering these parameters.

Q: What material verification should I expect with a GCr15 steel bearing? A: A material certificate should confirm GCr15 composition with specified carbon, chromium, and alloying element percentages, along with hardness values after heat treatment. This documentation protects against counterfeit bearings made from inferior steel that lacks fatigue resistance.

Sourcing the Right INA HK2216 Starts With Your Application Details Submit your load, speed, and envelope specifications through our inquiry form, and we'll return a technical selection review with matched documentation within one business day.