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Product Description
Double row angular contact ball bearing · 0.31kg · Cr 14.7kN / Cor 18.6kN · Pre-set clearance · No installation adjustment
Parameter | Value |
Part Number | FC40570 / FC12025-S01 |
Internal Reference | 38-1234 |
Type | Double Row Angular Contact Ball Bearing — Wheel Hub |
Bore (d) | 25 mm |
OD (D) | 52 mm |
Width (B) | 37 mm |
Weight | 0.31 kg |
Dynamic Load Rating (Cr) | 14.7 kN |
Static Load Rating (Cor) | 18.6 kN |
Clearance | Pre-set at manufacture — no field adjustment required |
Precision | P0 standard · P6/P5/P4/P2 on request |
Sealing | Open (standard) · 2RS / ZZ on request |
Material | GCr15 / GCr15SiMn (AISI 52100 / 100Cr6 equivalent) |
Brand | Nexans Bearings |
Number | Notes |
FC40570 | Primary designation |
FC12025-S01 | Alternative designation |
FC40570-S04 | Same 25×52×37mm geometry; sealing/internal sub-spec variant |
FC40570-S06 | Same 25×52×37mm geometry; sealing/internal sub-spec variant |
38-1234 | Nexans Bearings internal catalogue number |
All suffix variants (S01, S04, S06) share the same 25×52×37mm core geometry. Suffix differences indicate sealing configuration or minor internal sub-spec. Confirm exact suffix at time of inquiry.
Application | Equipment Type |
Passenger car front wheel hub | Light vehicles, sedans, hatchbacks |
Light commercial vehicle wheel hub | Vans, light trucks, pickups |
Agricultural tractor front wheel | Row-crop, utility, compact tractors |
Agricultural machinery axle | Combines, harvesters, implements |
The FC40570 / FC12025-S01 is a 25×52×37mm double row angular contact ball bearing for front wheel hub and tractor axle applications, weighing 0.31kg. Dynamic load rating 14.7kN, static 18.6kN.
Double row inner ring + enlarged ball filling angle — delivers full combined radial and bidirectional axial load capacity within the compact 25mm bore envelope. Compared to a single-row deep groove ball bearing of the same bore, the double row design doubles the effective load zone and increases axial capacity in both directions — essential for wheel hub service under simultaneous cornering and vertical load.
Pre-set clearance — internal geometry is precision-machined to the correct operating clearance at manufacture. No field adjustment required; direct drop-in replacement for high-volume workshop installation.
Parameter | Value | Notes |
Dynamic Cr | 14.7 kN | L10 fatigue life basis |
Static Cor | 18.6 kN | Max load without permanent deformation |
Clearance | Pre-set at manufacture | No field adjustment |
Precision | P0 standard · P5/P4/P2 for OEM supply | |
Sealing | Open / 2RS / ZZ | Specify at order |
Material | GCr15 / GCr15SiMn | AISI 52100 / 100Cr6 equivalent |
Ref | Part No. | Dimensions | Weight | Primary Vehicle |
38-1233 | GB40574 / GB12163S04 | 42×82×36mm | 0.8 kg | Citroën, Peugeot, GM, tractors |
38-1234(this) | FC40570 / FC12025-S01 | 25×52×37mm | 0.31 kg | General auto / tractor |
38-1235 | BA2B633316 / 545312 | 30×60.03×37mm | — | LADA Samara VAZ 2108–2115 |
38-1234 and 38-1235 are both 37mm wide double row angular contact ball bearings — differing in bore (25mm vs 30mm) and OD (52mm vs 60.03mm). Note: 38-1235 has a precision non-standard OD of 60.03mm — not interchangeable with a standard 60.00mm bearing. Distributors serving Russia/CIS typically stock both.
Q: FC40570-S01 vs S04 vs S06 — what's the difference?
Same 25×52×37mm geometry. Suffix variations indicate sealing configuration (open / shielded / sealed) or minor internal sub-spec. Specify your exact requirement at inquiry.
Q: Why no clearance adjustment during installation?
Clearance is pre-set by precision-machining the ball diameter, raceway curvature, and ring dimensions at manufacture. Unlike paired tapered roller configurations that require preload setting, this bearing installs as a direct drop-in — no adjustment tools or skill required.
Q: Which vehicles and tractors use FC40570/FC12025-S01?
Used wherever a 25×52×37mm double row wheel hub bearing is specified — passenger cars, light commercial vehicles, and agricultural tractors. Contact Nexans Bearings with your vehicle make, model, and year for specific OEM cross-reference confirmation.
Q: How does FC40570/FC12025-S01 compare to BA2B633316/545312 (38-1235)?
Both are 37mm wide double row angular contact ball bearings. FC40570: 25mm bore, 52mm OD — general auto/tractor. BA2B633316: 30mm bore, 60.03mm OD (precision non-standard) — LADA Samara VAZ 2108–2115 specific. Not interchangeable.
Q: MOQ and lead time?
Stock items: 1 piece MOQ, 3–5 business days. Made-to-order / special configuration: 20 business days. FOB Qingdao / CIF / EXW.
Q: OEM / private label available?
Yes — custom box artwork, laser-engraved logo on bearing ring, fully branded packaging. ISO9001 / IATF16949 certified supply chain. Dimensional inspection and load rating reports per batch. All IP rights belong to you. MOQ and pricing on request.
Website | |
+86-155-6283-9480 | |
Location | Liaocheng, Shandong, China |
