NHBBME-1106DLSuper Precision Angular Contact Ball Bearing Pair – Straight Bore, 30 mm ID, 55 mm OD, 13 mm Width, Open, 15° Contact Angle, Light Preload

Product Description

What this part is

A factory-matched pair of NHBB ME-1106-DL super-precision angular contact ball bearings. Single row each, 30 mm bore, 55 mm outside diameter, 13 mm width, open on both faces, with a machined phenolic cage. New Hampshire Ball Bearings product.

Decoding the designation

ME-1106 is NHBB’s own 1100-series designation for the ISO 7006 envelope, 30 x 55 x 13 mm. DL marks a duplex pair at light preload. The carton also carries the industry-standard renderings 7006-C-TPA-P4-DUL and the Fafnir equivalent 2MM9106WI-CR-DUL, which cross-confirm a 15° contact angle, a phenolic cage and P4 super-precision class.

What these specs mean in practice

The 15° contact angle favours speed and radial stiffness over thrust capacity, and the light preload keeps added friction and heat to the minimum of the preload classes. Together they support a 30,000 rpm limiting speed, among the higher figures in this bore size. Static radial rating is 10.3 kN per bearing. The phenolic cage is light, low-friction and self-lubricating, with an operating range of –40 °C to 120 °C.

Quantity and configuration

Two pieces, one matched duplex pair, 26 mm total width. Mounted back-to-back or face-to-face the pair takes thrust in both directions and holds the light preload the matched grind established; in tandem it takes thrust in one direction at doubled capacity.

Fitting notes

The marked ring faces go together in the factory-ground orientation, clamped square against a rigid shoulder so the preload lands as designed. Clamping load passes through the rings.

Interchange guidance

Equivalents at the same size, angle, cage and preload include FAG B7006-C-T-P4S-DUL, SKF 7006 CD/P4ADGA, NSK 7006CTRDULP4, RHP 7006CTDULP4 and Fafnir 2MM9106WI-CR-DUL. A 7006 AC or 7006 A5 is the same 30 x 55 x 13 mm envelope at a 25° angle and is a related size rather than an interchange.