Shatz bearing part number system (nomenclature)

Shatz bearing part number system

Below is a listing of prefixes and suffixes used in the identification of Schatz ball bearings. These letters are used, either singly or in various combinations, with the basic numbers, which express the bore size in 64ths of an inch and the outer diameter size in 32nds of an inch. When the bore or outside diameter is not an exact 64th or 32nd part of an inch respectively, the nearest 64th or 32nd of an inch is used in the bearing identification number and a suffix letter A, B, C, etc., is assigned to the bearing number to indicate a non-exact 64th bore and/or a non-exact 32nd outside diameter size. In addition, these same letters are used to differentiate between bearings with the same bore and outside diameter sizes but having other modifications.

How to read SCHATZ ball bearings numbers:

EXAMPLE: 1240DP

1240 - Basic bearing number
DP - Dustproof type bearing

Part number system

Prefix	Suffix	Definition
.	F	COMMERCIAL BEARING SHIELD.
.	L	BUNA-N LIP TYPE SEAL FOR FUNCTIONAL PRECISION SINGLE ROW RADIAL.
.	P	COMMERCIAL BEARING PLATE CLOSURE.
.	R	COMMERCIAL BEARING RESERVOIR.
.	R	BUNA-N FACE CONTACT SEAL FOR FUNCTIONAL PRECISION SINGLE-ROW RADIAL.
.	RT	FLUOROCARBON PLASTIC FACE CONTACT SEAL FOR FUNCTIONAL PRECISION SINGLE-ROW RADIAL.
.	S	COMMERCIAL BEARING FELT SEAL.
.	U	COMMERCIAL BEARING NON-CONTACT METAL LABYRINTH SEAL .
.	UP	COMMERCIAL BEARING NON-CONTACT METAL LABYRINTH SEAL AND PLATE CLOSURE.!'
A	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL.
AD	.	UNGROUND COMMERCIAL DOUBLE-ROW RADIAL.
AF	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH FLANGE.
AFH	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH FLANGE AND HEXAGON BORE.
AFSL	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH FLANGE, SET SCREWS, AND RELUBRICATION FITTING.
AH	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH HEXAGON BORE.
AP	.	SMALL SIZE UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH CLOSE BORE AND O.D. TOLERANCES.
APS	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH FLANGE AND SET SCREWS.
AR	.	UNGROUND HEAVY DUTY COMMERCIAL SINGLE-ROW RADIAL WITH MACHINED OUTER CASE.
ART	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL-THRUST.
AS	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH SET SCREWS.
ASL	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH SET SCREWS AND_ RELUBRICATION FITTING.
AT	.	UNGROUND COMMERCIAL SINGLE-ROW THRUST.
AX	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH INNER RING EXTENDED ON ONE SIDE.
AXH	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH INNER RING EXTENDED ON ONE SIDE AND HEXAGON BORE.
AXX	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH INNER RING EXTENDED ON BOTH SIDES.
BM	.	GROUND FUNCTIONAL PRECISION SINGLE-ROW RADIAL WITH METRIC BOUNDARY DIMENSIONS .
BR	.	GROUND FUNCTIONAL PRECISION SINGLE-ROW RADIAL WITH INCH BOUNDARY DIMENSIONS.
BS	.	GROUND FUNCTIONAL PRECISION SINGLE-ROW RADIAL WITH STANDARD INCH BOUNDARY DIMENSIONS.
CS	.	SPECIAL DESIGNS.
ER	.	GROUND FUNCTIONAL PRECISION SINGLE-ROW RADIAL WITH SET SCREWS AND SEALS.
FA	C	COMMERCIAL BEARING INTEGRAL WITH 3-BOLT ROUND FLANGE ADAPTER UNIT WITH COLLAR.
FA	S	COMMERCIAL BEARING INTEGRAL WITH 3-BOLT ROUND FLANGE ADAPTER UNIT WITH EXTENDED INNER RING AND SET SCREWS. /
FL	.	GROUND FUNCTIONAL PRECISION EXTERNAL SELF-ALIGNING WITH 3-BOLT ROUND* FLANGE ADAPTER UNIT.
G	.	GROUND COMMERCIAL SINGLE-ROW RADIAL.
GS	.	GROUND COMMERCIAL SINGLE-ROW RADIAL WITH SET SCREWS.
GT	.	GROUND COMMERCIAL SINGLE-ROW THRUST.
KFH	.	UNGROUND COMMERCIAL RADIAL WITH ONE PIECE MACHINED OUTER RING AND TWO OR THREE PIECE MACHINED INNER RING AND HEXAGON BORE.
L	.	GROUND FUNCTIONAL PRECISION EXTERNAL SELF ALIGNING (WITHOUT FLANGES) FOR TYPE FL, TYPE TL, AND TYPE TRL ADAPTER UNITS.
M	.	PRECISION GROUND MINIATURE STAINLESS STEEL.
N	.	PRECISION GROUND MINIATURE SAE-52100 STEEL.
SC	.	SPECIAL CASTERS .
SRT	.	STAMPED COMMERCIAL SINGLE-ROW RADIAL THRUST.
TL	.	GROUND FUNCTIONAL PRECISION EXTERNAL SELF ALIGNING WITH 2-BOLT OVAL FLANGE ADAPTER UNITS.
TRL	.	GROUND FUNCTIONAL PRECISION EXTERNAL SELF ALIGNING WITH 3-BOLT TRIANGU LAR FLANGE ADAPTER UNIT.
TW	.	UNGROUND COMMERCIAL SINGLE-ROW RADIAL WITH FLANGE AND SEALS.