Auto Wheel & Tractor Bearing 256807 (38-1245) | Double Row Angular Contact Ball Bearing 35×64×37mm — Wheel Hub & Agricultural Tractor, OEM & Wholesale Supply

Understanding the 256807 Part Number

The 256807 carries size code 07 within the GB 25-68xx series — one step below the 256808 (size code 08, 40mm bore). Both share the same 25° contact angle and double row construction. Note that the size code 07 appears in both the 25-68xx series (256807, 35mm bore) and the 25-69xx series (256907, 34mm bore) — these are different bearings in different series with different bore sizes, despite sharing the same OD and width.

⚠️ Critical Distinction: 1mm Bore Difference — 256807 vs 256907

The most important sourcing distinction in the entire range: 256807 and 256907 share the same 64mm OD and 37mm width but differ by just 1mm in bore:

⚠️ CRITICAL WARNING — 1mm BORE DIFFERENCE: The 256807 (35mm bore) and 256907 (34mm bore) are visually near-identical — same outer diameter (64mm), same width (37mm), same bearing type (double row angular contact, 25°). The only dimensional difference is 1mm in bore (35mm vs 34mm). Installing the wrong bearing will result in either a loose fit (35mm bearing on 34mm shaft) or a non-fitting assembly (34mm bearing on 35mm shaft), causing immediate hub failure. Always measure the hub shaft diameter precisely with a micrometer before ordering. A 1mm error here is not recoverable in the field.

GB 25-68xx Series: Both Bore Sizes Available

Nexans Bearings supplies both bore sizes in the GB 25-68xx series. The 256807 (35mm bore) and 256808 (40mm bore) together cover the full 25-68xx range available. Contact us for a combined quote.

64mm OD Bearings in the Range: Full Comparison

Two bearings in the Nexans Bearings range share a 64mm outer diameter:

⚠️ 64mm OD selection: Both bearings have the same OD (64mm) and width (37mm). Selection is entirely determined by hub shaft bore: 34mm shaft → 256907 / 35mm shaft → 256807. Measure the shaft with a micrometer — a 1mm error will cause hub failure.

Complete Double Row Angular Contact Ball Bearing Range

⚠️ Note on 64mm OD entries: Both 256907 (34mm bore, 25-69xx) and 256807 (35mm bore, 25-68xx) appear in this table with the same OD and width. These are distinct bearings — select by bore size only.

Angular Contact Ball Bearings in the Range: Full Series

Complete Auto Wheel & Tractor Hub Bearing Range — All Types

✅ Nexans Bearings supplies all fourteen sizes across three bearing types — source your complete auto wheel and tractor hub bearing range from a single supplier. Contact us for a combined quote.

Quick selection guide by bore size: 20mm bore → 156704 (single row angular contact) 25mm bore → 256905 (double row angular contact) 28mm bore → 256906 (double row angular contact) 34mm bore → 256907 (double row angular contact, 64mm OD) ⚠️ confirm shaft is exactly 34mm 35mm bore → 256807 (double row angular contact, 64mm OD) ⚠️ confirm shaft is exactly 35mm 37mm bore → 256908 (double row angular contact) 38mm bore → confirm OD: 72mm → 9036338006 / 73mm → 44300SAA003 / 74mm → 9036938003 40mm bore → confirm type: angular contact (25°) → 256808 / deep groove ball → 9036340066 43mm bore → confirm OD: 79mm → 44300S5A008 / 82mm → 9036343008 45mm bore → 44300S47008

Cross Reference Numbers

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

Vehicle & Equipment Compatibility

The 256807 double row angular contact ball bearing is used in wheel hub applications requiring a 35mm bore:

Please confirm exact fitment using part number 256807 and verify hub shaft diameter is exactly 35mm (not 34mm — see 256907). Contact our technical team with your equipment make, model, and year.

Product Overview

The 256807 is a sealed double row angular contact ball bearing manufactured to OE-equivalent specifications for automotive wheel hub and agricultural tractor hub applications. With a 35mm bore, 64mm outer diameter, and 37mm width, it is the smaller-bore sibling of the 256808 (40mm bore) within the GB 25-68xx series — and the bearing with the most critical sourcing distinction in the entire range: a 1mm bore difference from the 256907 (34mm bore, 64mm OD, 37mm width, GB 25-69xx series).

The 256807 and 256907 are visually near-identical — same OD, same width, same bearing type, same contact angle — differing only in bore (35mm vs 34mm) and GB series designation (25-68xx vs 25-69xx). This 1mm difference is the smallest bore gap between any two bearings in the range, and the most likely source of sourcing errors. At 540g (vs 256907's 520g), the weight difference of 20g is the only physical indicator distinguishable without measurement.

This bearing delivers:

• Bidirectional axial load capacity — double row 25° angular contact handles thrust in both directions simultaneously

• High radial load capacity — two rows of balls share the full radial load from vehicle weight

• Moment load resistance — double row arrangement resists hub tilting from cornering and uneven terrain

• Single-unit hub solution — no paired bearings required; one bearing handles all load directions

• Superior contamination resistance — sealed construction blocks road grit, water, and mud

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

• OE-equivalent fit — manufactured to GB specification for direct replacement of 256807

• Chrome steel durability — GCr15 / 52100 material provides high hardness 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

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

• Laser Marking — part numbers (256807) and logos etched directly on the bearing

• GB 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 256807 (GB standard part number) and 38-1245 (Nexans reference).

Q: What are the exact dimensions of the 256807?

Inner Diameter 35mm × Outer Diameter 64mm × Width 37mm, weight 540g.

Q: What is the difference between the 256807 and the 256907?

Both are double row angular contact ball bearings (25°) with 64mm OD and 37mm width — but the 256807 has a 35mm bore (GB 25-68xx series) while the 256907 has a 34mm bore (GB 25-69xx series). The bore difference is just 1mm. They are not interchangeable. Always measure the hub shaft with a micrometer to confirm whether it is 34mm or 35mm before ordering.

Q: How can I tell the 256807 and 256907 apart without measuring?

The only physical difference without measurement is weight: 256807 = 540g, 256907 = 520g (20g difference). However, weight measurement alone is not a reliable field method — always confirm by measuring the hub shaft bore with a micrometer.

Q: What is the difference between the GB 25-68xx and 25-69xx series?

Both are double row angular contact ball bearing series with a 25° contact angle, but follow different GB dimensional standards. In the Nexans Bearings range, the 25-68xx series covers 35mm and 40mm bores (256807, 256808), while the 25-69xx series covers 25–37mm bores (256905–256908).

Q: How does the 256807 fit within the GB 25-68xx series?

The 25-68xx series from Nexans Bearings has two bore sizes: 256807 (size code 07, 35mm bore) and 256808 (size code 08, 40mm bore). Select by hub shaft bore.

Q: What equipment uses the 256807 bearing?

The 256807 is used in automotive wheel hubs and small-to-medium agricultural tractor wheel hubs with a 35mm bore. Contact us with your equipment make and model to confirm exact fitment.

Q: Is the 256807 pre-lubricated?

Yes — factory pre-lubricated with grease, sealed on both sides. No relubrication required under normal operating conditions.

Q: Do you supply both the 256807 and 256907?

Yes — Nexans Bearings stocks both. When ordering, always confirm the shaft bore measurement to ensure the correct bearing is dispatched.

Q: Do you offer OEM or private label?

Yes — full OEM and private-label services including custom packaging, laser-etched branding, and GB-compliant documentation. Contact our sales team.

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

Flexible and negotiable. Contact us for a tailored quote.

Q: How quickly can you ship?

Ready stock maintained. Orders typically dispatched within 3–7 business days.

Q: Do you provide quality certifications?

Yes — dimensional inspection reports, material certificates, and packing specifications available on request.

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