Prefix	Suffix	Definition
.	A	VARIATIONS .
.	B	BANDS.
.	CO5	DEGREE OF PRECISION.
.	CO8	DEGREE OF PRECISION.
.	CP	CENTER PLATE.
.	D	DICRONITE FILM.
.	E	ELECTROFILM.
.	G	SPECIAL GREASE.
.	H	GREEN RINGS AND/OR RETAINER BLANKS.
.	J	PRESS STEEL RETAINER.
.	K	RETAINER ONLY.
.	L	PHENOLIC RETAINER.
.	LB	LARGE BORE.
.	M	MACHINE BRASS OR BRONZE RETAINERS.
.	M2	TYPE OF STEEL.
.	M50	TYPE OF STEEL.
.	N	NYLON RETAINER.
.	P	LESS ONE RACE.
.	Q	SPECIAL MATERIAL.
.	R	MACHINED STEEL RETAINER.
.	S	SEATS (SELF-ALIGNING) .
.	SB	SMALL BORE.
.	SP	SPECIAL TOLERANCE.
.	SS	STAINLESS STEEL.
.	T	MACHINED STAINLESS STEEL RETAINER.
.	U	PLATING.
.	V	STAINLESS STEEL BALLS.
.	W	WASHER (SELF-ALIGNING) .
.	X	RACE ONLY.
B	.	INCH DIMENSION, FLAT SEAT, SINGLE DIRECTION BALL THRUST BEARING, OUT-SIDE BANDED, GROOVED RACES, NO RETAINER, FULL COMPLEMENT BALLS, HEAVY.
D	.	INCH DIMENSION, FLAT SEAT, SINGLE DIRECTION, BALL THRUST BEARING, OUT-SIDE BANDED, GROOVED RACES, NO RETAINER, FULL COMPLEMENT BALLS, MEDIUM.
DL	.	METRIC DIMENSIONS, FLAT SEAT, SINGLE DIRECTION, BALL THRUST BEARING, THREE PIECE WITH BALL RETAINER, GROOVED RACES, LIGHT.
DM	.	METRIC DIMENSIONS, FLAT SEAT, SINGLE DIRECTION BALL THRUST BEARING. THREE PIECE WITH BALL RETAINER, GROOVED RACES, MEDIUM.
EW	.	INCH DIMENSION, FLAT SEAT, SINGLE DIRECTION BALL THRUST BEARING, THREE PIECE WITH MACHINED BRASS OR BRONZE RETAINER, FLAT RACES, LIGHT.
FT	.	INCH DIMENSION, FLAT SEAT, SINGLE DIRECTION BALL THRUST BEARING, THREE PIECE WITH MACHINED BRASS OR BRONZE RETAINER, FLAT RACES, MEDIUM.
FT-O	.	INCH DIMENSION, FLAT SEAT, SINGLE DIRECTION BALL THRUST BEARING, THREE PIECE WITH MACHINED BRASS OR BRONZE RETAINER, FLAT RACES, EXTRA LIGHT (SMALL SIZES) .
GT	.	INCH DIMENSION, FLAT SEAT, SINGLE DIRECTION BALL THRUST BEARING, THREE PIECE WITH PRESSED STEEL RETAINER, GROOVED RACES, LIGHT.
HW	.	INCH DIMENSION, FLAT SEAT, SINGLE DIRECTION BALL THRUST BEARING, THREE PIECE WITH BALL RETAINER, GROOVED RACES, HEAVY.
MW	.	INCH DIMENSION, FLAT SEAT, SINGLE DIRECTION BALL THRUST BEARING, THREE PIECE WITH BALL RETAINER, GROOVED RACES, MEDIUM.
TB	.	TREADLE ROLL BALL BEARING.
W	.	INCH DIMENSION, FLAT SEAT, SINGLE DIRECTION BALL THRUST BEARING, THREE PIECE WITH BALL RETAINER, GROOVED RACES, LIGHT.
WA	.	INCH DIMENSION, HARDENED AND GROUND STEEL THRUST WASHERS.
XW	.	INCH DIMENSION, FLAT SEAT, SINGLE DIRECTION BALL THRUST BEARING, THREE PIECE WITH BALL RETAINER, GROOVED RACES, EXTRA LIGHT (LARGE SIZES).

SPECIAL BEARING NOMENCLATURE