Below are useful questions when assessing Schedule B and ECCN determination. While most of them would belong under EAR99, a small minority may be subject to stricter BIS controls.
Schedule B
What type of bearing is it? (ball w/ integral shaft; ball unground; ball thrust; ball linear; ball angular; ball radial; tapered; spherical; needle; cylindrical)
ECCN
(2A001) If the bearings is of Radial Ball Type, please advise on each point [yes / no answers only!] whether it is / it has: (1) tolerances specified in accordance with ISO 492 Tolerance Class 2 or better (or ANSI/ABMA Std 20 Tolerance Class ABEC-9, or other national equivalents) and; (2) inner ring bore diameter between 12 and 50 mm; (3) outer ring outside diameter between 25 and 100 mm, and a width between 10 and 20 mm; (4) tolerance specified in accordance with ISO 3290 as grade 5 or worse; (5) made from monel or beryllium; (6) tapered roller bearing; (7) active magnetic? (2A991) If the ball bearings / solid ball bearings have the tolerance specified by the manufacturer in accordance with ABEC 7, ABEC 7P, or ABEC 7T, or ISO Standard Class 4 or better, please advise on each point [yes / no answers only!] whether it is / it has: (1) manufactured for use at operating temperatures above 573 K (300 C) either by using special material or by special heat treatment; (2) with lubricating elements or component modifications that, according to the manufacturer’s specifications, are specially designed to enable the bearings to operate at speeds exceeding 2.3 million DN (bearing bore diameter in mm x bearing rotational velocity in rpm); (4) solid tapered roller bearings, having tolerances specified by the manufacturer in accordance with ANSI / AFBMA Class 00 (inch) or Class A (metric) or better; (5) manufactured for use at operating temperatures below 219 K (-54 C) or above 423 K (150 C); (6) gas lubricated foil bearing manufactured for use at operating temperatures of 561 K (288 C) or higher and a unit load capacity exceeding 1 MPa; (7) active magnetic bearing; (8) fabric-lined self-aligning or fabric-lined journal sliding bearing manufactured for use at operating temperatures below 219 K (-54 C)? (1C999) Is the bearing of type of hardened steel and carbide precision ball bearings [yes / no answers only]?
