NTN7208CDBGLP5Angular Contact Ball Bearing — 40 mm ID, 80 mm OD, 18 mm Width, 15° Contact Angle, Back-to-Back, Light Preload, ABEC 5

Product Description

What this part is

NTN 7208CDBGLP5 is a matched pair of single-row angular contact ball bearings, ground for back-to-back mounting with a light preload. Bore Diameter: 40 mm. Outside Diameter: 80 mm. Width: 18 mm per bearing. Total Width: 36 mm (pair). Contact Angle: 15°. Preload: Light. Precision Class: ABEC 5 / P5. Closure Type: Open.

Decoding the designation

7208 — ISO 72 series (light section), bore code 08, 40 x 80 x 18 mm.

C — 15° contact angle.

DB — back-to-back matched pair. Two single-row bearings ground as a set. Not a double-row bearing.

GL — Light preload.

P5 — ISO class 5 tolerances, equivalent to ABEC 5.

What these specs mean in practice

The 15° angle favours speed and radial stiffness over axial capacity. Back-to-back mounting spreads the load centres apart, giving the pair high moment stiffness and axial location in both directions. The light preload removes internal clearance while keeping heat generation low.

Mounting data

Fillet Radius r: 1.1 mm. Fillet Radius r1: 0.6 mm. Shaft Abutment da min: 47 mm. Housing Abutment Da max: 73 mm.

Quantity and configuration

Unit Quantity: 2 Pcs. One matched DB pair.

Interchange guidance

Cross-Reference: NSK 7208CTYNDBLP5, the same 15° back-to-back light-preload pair in P5. Cross-Reference: Fafnir 2MM208WICRDUL, a 15° light-preload duplex pair on the same envelope in ABEC 7.