6-7805Y Lada Tapered Roller Bearing | 26×57.15×17.462mm | VAZ 2101–2107 Front Wheel Hub

Specifications

⚠️ Fitment note: The 6-7805Y is the inner (smaller) tapered roller bearing of the VAZ 2101–2107 front wheel hub assembly. It is paired with the outer bearing 6-7804Y (2101-3103019, 19.05×45.24×12.06mm). Both bearings must be replaced together for correct hub preload and service life.

Product Overview

The 6-7805Y is a single row tapered roller bearing designed to GOST 27365-87 specification, serving as the inner bearing in the front wheel hub assembly of all Lada VAZ 2101–2107 series vehicles. Unlike deep groove ball bearings, tapered roller bearings handle combined radial and axial (thrust) loads simultaneously — a critical requirement for automotive wheel hub applications where cornering forces generate significant axial loading.

At 26×57.15×17.462mm and 0.226kg, the 6-7805Y features:

• Tapered raceway geometry — rollers, inner ring (cone), and outer ring (cup) all share a common apex point, ensuring pure rolling contact and minimal friction under combined loading

• GCr15 chrome steel construction — high hardness (60–64 HRC), superior fatigue resistance, and long service life under automotive wheel hub operating conditions

• GOST 27365-87 dimensional compliance — ensures direct interchangeability with OEM Lada VAZ parts and other GOST-compliant aftermarket suppliers

• Separable design — cone (inner ring + rollers + cage) and cup (outer ring) are separable, simplifying installation and replacement in the wheel hub

Vehicle Fitment

Front Wheel Hub Bearing Set — 6-7805Y + 6-7804Y

The VAZ 2101–2107 front wheel hub uses two tapered roller bearings mounted in a back-to-back arrangement to handle both radial wheel loads and bidirectional axial forces during cornering and braking.

Always replace both bearings as a set. Mixing worn and new bearings results in incorrect hub preload, uneven load distribution, accelerated wear, and potential wheel play.

Applications

• Primary: Lada VAZ 2101–2107 series front wheel hub inner bearing position

• Aftermarket: Direct OEM-specification replacement for Russian and CIS vehicle fleets

• Export markets: Russia, Ukraine, Kazakhstan, Belarus, Eastern Europe, and global Lada aftermarket distributors

Cross-Reference

Installation Notes

1. Always replace in pairs — inner (6-7805Y) and outer (6-7804Y) together

2. Clean the hub thoroughly before installation — remove all old grease, debris, and corrosion

3. Pack with wheel bearing grease — fill the hub cavity and coat both bearing assemblies before installation

4. Set correct preload — adjust the hub nut to achieve zero play with smooth rotation; excessive preload causes overheating and premature failure

5. Use a proper bearing driver — never strike the bearing directly; use a correctly sized driver tube on the outer ring (cup) during installation

FAQ

Q: Is 6-7805Y a tapered roller bearing or a deep groove ball bearing?

The 6-7805Y is a single row tapered roller bearing (GOST 27365-87). It is specifically designed to handle the combined radial and axial loads of an automotive wheel hub — deep groove ball bearings are not used in this application.

Q: What is the difference between 6-7805Y and 7805?

Both designations refer to the same bearing. "6-7805Y" is the full GOST designation including precision class prefix. "7805" is the short-form reference commonly used in parts catalogs and workshop manuals.

Q: Can I replace only the inner bearing (6-7805Y) without replacing the outer (6-7804Y)?

Not recommended. Both bearings share the same hub preload setting. Replacing only one bearing results in mismatched wear states, incorrect preload, and accelerated failure of the new bearing. Always replace as a set.

Q: What grease should I use?

Use a lithium-based or moly-fortified wheel bearing grease rated for automotive hub applications. Pack the bearing fully and fill the hub cavity between the two bearings.

Q: Is this bearing compatible with Lada Niva (VAZ 2121)?

The Lada Niva uses a different front hub design. Please contact our team with your vehicle model and OEM part number for a confirmed fitment check.

Q: What documentation is available?

GCr15 material certificates, dimensional inspection reports, GOST 27365-87 compliance documentation, packing lists, and certificates of origin. SGS / BV third-party inspection available on request.

Q: OEM / private label available?

Yes. Custom branded packaging for distributors and wholesalers. MOQ and pricing on request.

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