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639 Series Custom & Special Bearings — Sizes & Specifications

16 models in the 639 series, 1.5–63.5 mm bore. Every row links to the full specification page and to the cross-reference page of that model.

ModelBrandBore d (mm)OD D (mm)Width B (mm)
639/1.5X2/VANDGE1.553—
639/2X2-2Z/P5ANDGE262.8—
639/2X2-2Z/P6ANDGE262.8—
639/2X2-Z/P5ANDGE262.8—
639/2X2-Z/P6ANDGE262.8—
639/2X2/P5ANDGE262.8—
639/2X2/P6ANDGE262.8—
639/2.5X2/P5ANDGE2.573—
639/2.5X2/P6ANDGE2.573—
639/4/P5ANDGE4115—
639/4/P6ANDGE4115—
639/7X2/P6ANDGE7176—
639KOYO93010Cross-ref →
639ZZKOYO93010Cross-ref →
639/632NACHI63.5136.52541.275Cross-ref →
639/632-BTIMKEN63.5136.65216.662—

About the 639 series

639 series bearings follow the ISO dimension plan for this family, so a given number is dimensionally interchangeable between brands - see the cross-reference to confirm. Choose the suffix for your duty: shields for dry, clean positions, contact seals for wet or dusty ones, and a larger clearance class where the fit or temperature demands it.

Other Custom & Special Bearings series: 62 · 685 · 63 · 60 · SNV · K · BND · 697