B8-23D
B8-23D Alternator Bearing 8×23×14
- Size
- 8 × 23 × 14 mm
- Cross-ref
- WAI 10-800-4PFI B8-23DAssembly A3TG0081; A3TG0081A; A3TG0091; A3TG0091A
IATF 16949 CertifiedSince 2011 · Jiashan County, China
OTT SA6303-2RSM-4PT is a four-point contact ball bearing for automotive alternators. Its 17×47×14 mm boundary dimensions match the standard 6303 size, while its internal contact geometry differs from a deep groove bearing. Specifications include P6 accuracy, C3 radial clearance (0.011–0.025 mm), brown ACM+SPCC seals and WTP grease fill of 25–35%. Match the four-point contact structure and drawing specification during selection. The product image illustrates the SA6303-2RSM family; refer to the 4PT drawing for the four-point contact configuration. OTT reports Pramo alternator applications for this 4PT model.
Technical data
| Dimensions | 17×47×14 mm |
|---|---|
| Seal / Marking | 2RSM; brown ACM+SPCC seals; C3 internal clearance |
| Structure | Four-point contact ball (OTT confirmation) |
| Assembly Manufacturer | Pramo (OTT confirmation) |
Available in OTT branded packaging or custom OEM packaging. Individual bearings are sealed in PE bags, packed in branded carton boxes, then palletized in wooden crates for export shipping.






Same product line
B8-23D Alternator Bearing 8×23×14
B10-27D Alternator Bearing 10×27×14
B10-50D Alternator Bearing 10×27×11
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