Auto Wheel & Tractor Bearing 9036340066 (38-1252) | Double Row Ball Bearing 40×74×42mm — Wheel Hub & Agricultural Tractor, OEM & Wholesale Supply

Product Specifications

Understanding the 9036340066 Part Number

The 90363 series covers multiple bore sizes within the same double row sealed ball bearing family. The 9036340066 (40mm bore) joins the 9036338006 (38mm bore) and 9036343008 (43mm bore) as the three bore sizes available in the 90363 series from Nexans Bearings. The 40066 suffix identifies the 40mm bore configuration and its associated component number.

⚠️ Important Note: Same OD (74mm), Different Bore — 9036340066 vs 9036938003

Buyers sourcing by outer diameter should note that two bearings in this range share a 74mm outer diameter but have different bores:

⚠️ WARNING: Both bearings have a 74mm outer diameter but fit different shaft sizes (40mm vs 38mm). Always select by inner diameter (bore) matching your hub shaft: 40mm shaft → 9036340066 / 38mm shaft → 9036938003. Installing a bearing with the wrong bore will result in a loose or non-fitting shaft connection and immediate hub failure.

GB 90363 Series — Three Bore Sizes Available

Within the GB 90363 series, Nexans Bearings supplies three bore sizes:

The 90363 series covers a progressive range of bore sizes (38mm → 40mm → 43mm) with corresponding increases in outer diameter (72mm → 74mm → 82mm) and width (33/36mm → 42mm → 45mm). Select by matching the inner diameter to your hub shaft size.

Complete Tractor & Auto Wheel Hub Double Row Bearing Range

Nexans Bearings supplies the full size range of double row sealed ball bearings for tractor and auto wheel hub applications:

✅ Nexans Bearings supplies all seven sizes — source your complete tractor/auto wheel hub bearing range from a single supplier. Contact us for a combined quote across all part numbers.

Selection guide — Step 1: Match inner diameter (bore) to your hub shaft: 38mm shaft → Step 2A (three OD options) 40mm shaft → 9036340066 (single option) 43mm shaft → Step 2B (two OD options) 45mm shaft → 44300S47008 Step 2A (38mm bore): Confirm hub housing bore: 72mm → 9036338006 / 73mm → 44300SAA003 / 74mm → 9036938003 Step 2B (43mm bore): Confirm hub housing bore: 79mm → 44300S5A008 / 82mm → 9036343008

Cross Reference Numbers

Contact our technical team with your application details for confirmed international cross-references.

Vehicle & Equipment Compatibility

The 9036340066 double row ball bearing is used across a range of automotive and agricultural equipment wheel hub applications requiring a 40mm bore:

Please confirm exact fitment using part number 9036340066 or contact our technical team with your equipment make, model, and year.

Why Double Row Ball Bearings for Tractor & Auto Wheel Hubs

Product Overview

The 9036340066 is a sealed double row deep groove ball bearing manufactured to OE-equivalent specifications for automotive wheel hub and agricultural tractor hub applications. With a 40mm bore, 74mm outer diameter, and 42mm single width, it is the only 40mm bore bearing in the Nexans Bearings tractor/auto wheel hub range — providing the dedicated solution for equipment with a 40mm hub shaft.

As the middle member of the GB 90363 series trio (38mm → 40mm → 43mm bore), the 9036340066 bridges the gap between the 9036338006 (38mm bore, 72mm OD) and the 9036343008 (43mm bore, 82mm OD), with a 74mm OD that also appears in the 9036938003 (38mm bore, 74mm OD, GB 90369 series) — though the two are not interchangeable due to their different bore sizes.

This bearing delivers:

• Correct shaft and housing fit — 40mm bore and 74mm OD precisely match the hub shaft and housing for equipment specifying the 9036340066

• High radial and axial load capacity — double row ball arrangement handles combined loads of loaded tractor and vehicle wheel hubs

• Moment load resistance — double row geometry resists tilting forces from uneven terrain and field operation

• Superior contamination resistance — sealed construction blocks dust, mud, and moisture in agricultural and road environments

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

• OE-equivalent fit — manufactured to GB/OE specification for direct replacement of 9036340066

• 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 agricultural machinery and automotive parts distributors:

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

• Laser Marking — part numbers (9036340066) and logos etched directly on the bearing

• GB / OE Spec Matching — dimensional validation against OEM specification

• 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 9036340066 (full part number / GB standard) and 38-1252 (NKS reference). The 90363 is the bearing series; 40066 references the 40mm bore configuration and associated component number.

Q: What are the exact dimensions of the 9036340066?

The dimensions are: Inner Diameter 40mm × Outer Diameter 74mm × Width 42mm.

Q: Is the 9036340066 the same as the 9036938003? Both seem to have a 74mm OD.

No — they are not interchangeable. Both have a 74mm outer diameter, but different bores: 9036340066 has a 40mm bore (GB 90363 series) while 9036938003 has a 38mm bore (GB 90369 series). They also have different widths (42mm vs 33/36mm). Always select by inner diameter matching your hub shaft size.

Q: Is the 9036340066 the only 40mm bore bearing in the range?

Yes — the 9036340066 is the only 40mm bore bearing in the Nexans Bearings tractor/auto wheel hub double row bearing range. All other bearings have 38mm, 43mm, or 45mm bores.

Q: How does the 9036340066 fit within the GB 90363 series?

The 90363 series from Nexans Bearings covers three bore sizes: 9036338006 (38mm bore), 9036340066 (40mm bore), and 9036343008 (43mm bore). Select by matching the inner diameter to your hub shaft.

Q: What equipment uses the 9036340066 bearing?

This bearing is used in small-to-medium agricultural tractor wheel hubs and light vehicle wheel hub assemblies with a 40mm bore. Contact us with your equipment make and model to confirm exact fitment.

Q: Is the 9036340066 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 the complete range of tractor wheel hub bearings?

Yes. Nexans Bearings supplies all seven variants across 38mm, 40mm, 43mm, and 45mm bore sizes. Contact us for a combined quote across the full range.

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 GB-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 agricultural and automotive wheel hub bearings including the 9036340066. 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.

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