LADA Bearing 6-50306KY (21011-701190 / 38-1479) | Deep Groove Ball Bearing 30×72×19mm — GOST 6306-2RS Equivalent, OEM & Wholesale Supply

Understanding the 6-50306KY Suffix Codes

Note on the K suffix: In GOST nomenclature, K denotes a specific internal design modification required for the AvtoVAZ OEM application 21011-701190. While the outer dimensions match the international 6306-2RS, the K suffix indicates a GOST-specific internal specification. Always order the full 6-50306KY part number for LADA OEM replacement. Contact our technical team for full specification details.

6-50306KY vs 6-50306E2Y — Understanding the Difference

A critical sourcing distinction for LADA parts buyers — these two bearings share the same base size code (50306) but have different suffix specifications and OEM applications:

⚠️ These two bearings are NOT interchangeable. Always order by the exact OEM part number ( 21011-701190 for KY, 2101-1701190 for E2Y) to ensure correct fitment. Note the subtle difference in OEM numbers: 21011 vs 2101. Contact our technical team if you are unsure which part applies to your application.

Cross Reference Numbers

⚠️ The K suffix in 6-50306KY indicates a GOST-specific internal specification for the LADA OEM application. While dimensions match the international 6306-2RS, always verify with the full GOST part number 6-50306KY or OEM number 21011-701190 before substituting with international equivalents.

Vehicle & Application Compatibility

The 6-50306KY (21011-701190) bearing is used across LADA (VAZ) vehicle platforms:

Please confirm exact fitment using OEM part number 21011-701190 or contact our technical team.

Product Overview

The 6-50306KY is a rubber-sealed deep groove ball bearing manufactured to GOST standards for LADA (VAZ) automotive applications. With standard metric dimensions of 30×72×19mm — equivalent to the internationally recognized 6306-2RS — it incorporates the GOST-specific K suffix modifier to meet the AvtoVAZ OEM requirement for application 21011-701190.

This bearing delivers:

• Reliable radial and axial load handling — deep groove geometry supports combined loads in gearbox, transmission, and auxiliary drive positions

• Superior contamination resistance — Y rubber seals block dust, road grit, and moisture in automotive operating environments

• Excellent grease retention — factory pre-lubricated, sealed for life under normal operating conditions

• Low noise and smooth rotation — precision-ground raceways ensure quiet, vibration-free operation

• OE-equivalent fit — manufactured to GOST specification for direct OEM replacement of 21011-701190

• Chrome steel durability — GCr15 / 52100 material provides high hardness, wear resistance, and fatigue strength

Sourced from Nexans Bearings' trusted manufacturing network — including leading Chinese bearing brands QC, C&U, ZWZ, TWB, and ZWA — every unit undergoes strict dimensional and quality inspection before dispatch.

Why Source from Nexans Bearings

OEM & Private Label Service

Nexans Bearings provides a complete OEM and private-label program for automotive parts distributors sourcing LADA and Russian vehicle bearings:

• Custom Packaging Design — your brand, your box, your label

• Laser Marking — part numbers (6-50306KY / 21011-701190) and logos etched directly on the bearing

• GOST Spec Matching — dimensional and K-suffix specification validation against AvtoVAZ 21011-701190

• Clearance & Grade Selection — specify C0/C2/C3 clearance and P0–P5 precision grade per your application

• Flexible MOQ — suitable for startups and established importers alike

• Full Documentation — inspection reports, material certificates, and packing specifications per order

• Dedicated Account Management — assigned support for OEM and high-volume clients

Frequently Asked Questions

Q: What are all the part numbers for this bearing?

This bearing is referenced as 6-50306KY (GOST), 21011-701190 (AvtoVAZ OEM), and 38-1479 (NKS reference). The GPZ designation is 50306KY. The international ISO equivalent is 6306-2RS (30×72×19mm).

Q: What are the dimensions of the 6-50306KY bearing?

The dimensions are: Inner Diameter 30mm × Outer Diameter 72mm × Width 19mm — standard metric dimensions equivalent to the international 6306 series.

Q: What does the "K" suffix mean in 6-50306KY?

The K suffix in GOST nomenclature denotes a specific internal design or clearance modification required for the AvtoVAZ OEM application 21011-701190. While the outer dimensions match the standard 6306-2RS, the K suffix indicates a GOST-specific internal specification. Always order the full 6-50306KY for LADA OEM replacement.

Q: What does the "Y" suffix mean in 6-50306KY?

The Y suffix denotes rubber seals on both sides — equivalent to the 2RS designation in ISO/international standards, providing superior protection against dust and moisture.

Q: What is the difference between 6-50306KY and 6-50306E2Y?

Both share the same base size code (50306) but have different GOST internal specifications and OEM applications: 6-50306KY (OEM: 21011-701190) uses a K modifier, while 6-50306E2Y (OEM: 2101-1701190) uses an E2 enhanced design. Note the subtle OEM number difference (21011 vs 2101). These are not interchangeable — always order by the exact OEM part number.

Q: Is the 6-50306KY the same as a standard 6306-2RS?

The dimensions are identical (30×72×19mm, double rubber sealed). However, the K suffix indicates a GOST-specific internal specification for the LADA OEM application. For LADA OEM replacement, always source the 6-50306KY to ensure full compliance with AvtoVAZ specification 21011-701190.

Q: Which LADA models use the 6-50306KY (21011-701190) bearing?

This bearing is used across multiple LADA (VAZ) platforms in gearbox, transmission, and auxiliary drive applications. Confirm exact fitment with OEM number 21011-701190 or contact our technical team.

Q: Is the 6-50306KY pre-lubricated?

Yes. The bearing is factory pre-lubricated with grease and sealed on both sides. Under normal operating conditions, no relubrication is required during the bearing's service life.

Q: Do you supply other GOST / LADA bearings?

Yes. Nexans Bearings maintains extensive stock of GOST-standard and LADA-specific bearings across all series. Contact us with your part numbers for availability and pricing.

Q: Do you offer OEM or private label for this bearing?

Yes. We provide full OEM and private-label services including custom packaging, laser-etched branding, and GOST-compliant documentation. Contact our sales team to discuss your requirements and MOQ.

Q: What is the minimum order quantity (MOQ)?

MOQ is flexible and negotiable. We welcome both trial orders and large-volume contracts. Contact us for a tailored quote.

Q: How quickly can you ship?

We maintain ready stock of LADA aftermarket bearings including the 6-50306KY. Orders are typically dispatched within 3–7 business days. Expedited shipping is available upon request.

Q: Do you provide quality certifications?

Yes — dimensional inspection reports, material certificates, and packing specifications are available upon request for every order.

Contact Us — Get a Quote Within 24 Hours