| Prefix | Suffix | Definition |
| . | . | KP20A) . |
| . | . | PROVISION FOR RELUBRICATION, EXTERNAL SELF-ALIGNING WITH ECCENTRIC LOCKING COLLAR. |
| . | . | PROVISION FOR RELUBRICATION, NOT EXTERNAL SELF -ALIGNING , WITH ECCENTRIC LOCKING COLLAR. |
| . | -2 | ANY BEARING NUMBER FOLLOWED BY A DASH AND ANOTHER SINGLE DIGIT INDICATES A BEARING DIFFERING FROM STANDARD (AS REPRESENTED BY THE BEARING NUMBER PROPER) IN ONE RESPECT OR ANOTHER. |
| . | -3 | ANY BEARING NUMBER FOLLOWED BY A DASH AND ANOTHER SINGLE DIGIT INDICATES A BEARING DIFFERING FROM STANDARD (AS REPRESENTED BY THE BEARING NUMBER PROPER) IN ONE RESPECT OR ANOTHER. |
| . | -4 | ANY BEARING NUMBER FOLLOWED BY A DASH AND ANOTHER SINGLE DIGIT INDICATES A BEARING DIFFERING FROM STANDARD (AS REPRESENTED BY THE BEARING NUMBER PROPER) IN ONE RESPECT OR ANOTHER. |
| . | 3, ETC. | UNCHANGED. |
| . | A | MEDIUM DUTY AIRCRAFT TYPE. |
| . | A | NARROW SERIES TYPE. |
| . | A | ORIGINAL MAXIMUM (FILLING SLOT TYPE) (OBSOLETE ON MOST SIZES) (SUPERSEDED BY W) . |
| . | AK | LOWER TORQUE RETAINER TYPE, AIRCRAFT SERIES (E.G. AW5AK) . |
| . | B | SPHERICAL O.D. |
| . | BF | WIDE INNER RING BEARING, BEVELED O.D., FELT SEALS. |
| . | BR | BRONZE RETAINER, STAMPED ON BOX ONLY. |
| . | BS | EXTERNAL SELF-ALIGNING AIRCRAFT TORQUE TUBE TYPE (E.G. KP25BS) |
| . | BT | SPECIAL CATERPILLAR REPLACEMENT. |
| . | CL, 2, | DENOTES LATEST INTERNAL CONSTRUCTION CHANGE, OVERALL DIMENSIONS |
| . | CN | SPECIAL BEARING, CHICAGO PNEUMATIC TOOL. |
| . | CR | STAMPED ON BOX ONLY TO DESIGNATE COMPOSITION RETAINER. |
| . | D | STEEL PLATE GREASE SHIELD ON ONE SIDE OF BEARING. |
| . | DB | DUPLEX BACK-TO-BACK. |
| . | DD | STEEL PLATE GREASE SHIELD ON BOTH SIDES OF BEARING. |
| . | DDG | DOUBLE SHIELD, SNAP RING AND GROOVE ON O.D. OF OUTER RING. |
| . | DF | DUPLEX FACE-TO-FACE. |
| . | DG | SINGLE SHIELD, SNAP RING AND GROOVE ON O.D. ON SIDE OPPOSITE SHIELD. |
| . | DT | DUPLEX TANDEM. |
| . | DU | DUPLEX UNIVERSAL FLUSH GROUND FOR MOUNTING DB, DF, OR DT. |
| . | DUH | DUPLEX UNIVERSAL, HEAVY DELOAD. |
| . | DUL | DUPLEX UNIVERSAL, LIGHT DELOAD. |
| . | DUM | DUPLEX UNIVERSAL, MEDIUM DELOAD. |
| . | E | (FOLLOWED BY FOUR DIGIT NUMERAL) CUSTOMER SPECIFICATION. |
| . | F | SYNTHETIC RUBBER AND FELT WASHER, INCORPORATED ON INTEGRAL PART OF MECHANI-SEAL ON WIDE INNER RING BEARINGS. |
| . | FT | FULL TYPE (WITHOUT A RETAINER) . |
| . | G | SNAP RING AND GROOVE ON O.D. OF OUTER RING. |
| . | GE | SUFFIX FOR FEW NARROW SERIES. |
| . | H | HEAVY AIRCRAFT SERIES. |
| . | K | LATEST CONRAD (NON-FILLING SLOT) TYPE. |
| . | KD | CONRAD TYPE, SINGLE SHIELD. |
| . | KDD | CONRAD TYPE, DOUBLE SHIELDED. |
| . | KI | ALSO AIRCRAFT HELICOPTER BEARING. |
| . | KL | INDUSTRIAL POWER TRANSMISSION BALL BEARING, WIDE INNER RING, SINGLE SEAL . |
| . | KL | CONRAD CONSTRUCTION, SINGLE MECHANI-SEAL. |
| . | KLB | INDUSTRIAL POWER TRANSMISSION BALL BEARING, WIDE INNER RING, SINGLE SEAL, EXTERNAL SELF-ALIGNING. |
| . | KLD | CONRAD CONSTRUCTION, SINGLE MECHANI-SEAL, SINGLE SHIELD. |
| . | KLL | INDUSTRIAL TRANSMISSION BEARING, WIDE INNER RING, DOUBLE SEAL. |
| . | KLL | CONRAD CONSTRUCTION, DOUBLE MECHANI-SEAL. |
| . | KT | WIDE INNER TYPE TO DENOTE CHANGE IN OUTER RING SIZE FROM ORIGINAL DESIGN. |
| . | KT | SINGLE FELT SEAL, CONRAD CONSTRUCTION. |
| . | KTD | CONRAD CONSTRUCTION, ONE FELT SEAL, ONE SHIELD. |
| . | KTT | DOUBLE FELT SEAL, CONRAD CONSTRUCTION. |
| . | KVL | CONRAD CONSTRUCTION, SINGLE MECHANI-SEAL. |
| . | KVLD | CONRAD CONSTRUCTION, SINGLE MECHANI-SEAL, SINGLE SHIELD. |
| . | KVLL | CONRAD CONSTRUCTION, DOUBLE MECHANI-SEAL. |
| . | KVT | SINGLE FELT SEAL, CONRAD CONSTRUCTION. |
| . | KVTD | CONRAD CONSTRUCTION, SINGLE FELT SEAL, SINGLE SHIELD. |
| . | L | LEFT-HANDED THREAD, ROD-END TYPE. |
| . | L | MECHANI-SEAL ON ONE SIDE OF SINGLE-ROW RADIAL AND WIDE INNER RING BEARINGS . |
| . | LD | MECHANI-SEALED ON ONE SIDE, PLATE SHIELD ON OTHER. |
| . | LF | MECHANI-SEALED ONE SIDE WITH FELT OR COMPOSITION BETWEEN SEAL MEMBERS. |
| . | LL | MECHANI-SEALS BOTH SIDES OF BEARING, RADIAL AND WIDE INNER TYPE. |
| . | LLF | MECHANI-SEALS BOTH SIDES OF BEARING WITH FELT OR COMPOSITION BETWEEN SEAL MEMBERS. |
| . | LLG | DOUBLE MECHANI-SEAL, SNAP RING AND GROOVE ON O.D. OF OUTER RING. |
| . | M | MALE SHANK, ROD-END TYPE. |
| . | MBR | MACHINED BRONZE RETAINER (STAMPED ON BOX ONLY) . |
| . | MS | STAMPING SIZE DESIGNATION, FLANGETTE UNIT. |
| . | MSR | MACHINED STEEL RETAINER (STAMPED ON BOX ONLY) . |
| . | N | ONE SHIELDED BEARINGS CLOSER FITTING GREASE SHIELD WITH MORE LAND ON BEARING FACE. |
| . | N | 6000 SERIES. OLD AMERICAN WIDTH IN INCHES. (NOTE: 6000 SERIES WITHOUT SUFFIX "N" IS EUROPEAN METRIC WIDTH) . |
| . | N | DOUBLE ROW BEARINGS, 5000 SERIES. OLD AMERICAN, NARROW WIDTH PRIOR TO SAE STANDARDS. (NOTE: 5000 SERIES WITHOUT SUFFIX "N" IS PRESENT SAE STANDARD WIDTH) . |
| . | NP | SINGLE NON-REMOVABLE PLYA-SEAL. |
| . | NPP | TWO NON-REMOVABLE PLYA-SEALS. |
| . | P | PLYA-SEAL ON ONE SIDE OF BEARING. |
| . | PP | PLYA-SEAL ON BOTH SIDES OF BEARING. |
| . | PW | EXTRA DUTY RADIAL, THRUST TYPE 7000 SERIES. |
| . | R | RIGHT-HAND THREAD ROD-END TYPE. |
| . | S | SOLID SHANK, ROD-END TYPE. |
| . | S | EXTERNAL SELF-ALIGNING TYPE, SPHERICAL SURFACE ON THE O.D. IS MATCHED WITH AN INTERNAL SPHERICAL SURFACE OF AN EXTRA RING HAVING A STRAIGHT OR FLAT O.D. USED TO DESIGNATE SINGLE- AND DOUBLE-ROW AND WIDE INNER RING BEARINGS. |
| . | SMBR | SILICON, MACHINED BRONZE RETAINER. |
| . | SR | STEEL RETAINER. |
| . | T | FELT SEAL ON ONE SIDE OF BEARING. |
| . | TD | SINGLE SEAL AND SHIELD. |
| . | TG | SINGLE FELT SEAL, SNAP RING AND GROOVE ON O.D. OF OUTER RING ON SIDE OPPOSITE SEAL. |
| . | TT | FELT SEAL ON BOTH SIDES OF BEARING. |
| . | W | (FOLLOWED BY NUMERAL) WIDTH OF INNER RING IN SIXTEENTHS, BELL CRANK TYPE. |
| . | W | 20 DEGREE ANGLE IN SMALLER SIZES, 7200 AND 7300 SERIES. |
| . | W | LATEST MAXIMUM CAPACITY (FILLING SLOT) TYPE. |
| . | WD | LOADING GROOVE CONSTRUCTION, SINGLE SHIELD FACE OPPOSITE GROOVE. |
| . | WI | MAXIMUM TYPE (W) COUNTERBORED ON OUTER RING. |
| . | WP | 7000 SERIES WITH 35 DEGREE CONTACT ANGLE, SAME NOTE AS FOR WI (SUPERSEDED BY 7000PW SERIES) . |
| 0 | . | SUPER-QUIET SERIES. |
| 2 | . | 12 DEGREE CONTACT ANGLE IN RADIALLY FITTED BEARINGS. |
| 2MM | . | ABEC-7 PRECISION, 12 DEGREE CONTACT ANGLE. |
| 3 | . | 25 DEGREE CONTACT ANGLE IN RADIALLY FITTED BEARINGS. |
| 3MM | . | ABEC-7 PRECISION, 25 DEGREE CONTACT ANGLE. |
| A | . | STAINLESS STEEL. |
| AA | . | ANY STEEL OTHER THAN 52100 AND 440C STAINLESS. |
| B | . | AIRCRAFT TORQUE TUBE TYPE (E.G. B542). |
| BCP | . | BELLCRANK TYPE AIRCRAFT BEARING, PLYA-SEALS (E.G. BCP4W10) . |
| CO | . | CYLINDRICAL CARTRIDGE UNIT - (REPLACEMENT BEARING UNIT SERIES MUOB) . |
| D | R | TRACK ROLLER TYPE, AIRCRAFT BEARING (E.G. D7R6-2) . |
| DF | . | AIRCRAFT DOUBLE-ROW. |
| DPP | . | AIRCRAFT, DOUBLE-ROW, PLYA-SEAL TYPE. |
| DR | . | DOUBLE ROW INDUSTRIAL ROLLER BEARINGS. |
| DRN | . | DOUBLE RIGID PILLOW BLOCK. |
| DSA | . | STANDARD SERIES DOUBLE PILLOW BLOCK, TWO WIDE INNER RING BEARINGS WITH LOCKING COLLARS, EACH BEARING SINGLE LABYRINTH SEALED (REPLACEMENT BEARING UNIT SERIES MUA) . |
| DSADD | . | SAME AS DSA SERIES EXCEPT FURNISHED WITH DUST SEAL COLLARS. |
| DSAO | . | SAME AS DSA SERIES EXCEPT HEAVY SERIES (REPLACEMENT BEARING UNIT SERIES MUOA) . |
| DSAODD | . | SAME AS DSADD SERIES EXCEPT HEAVY SERIES (REPLACEMENT BEARING UNIT SERIES MUOA) . |
| DSP | . | DOUBLE ROW SELF-ALIGNING AIRCRAFT BEARING, PLYA-SEAL, PRE-LUBRICATED. |
| DSRP | . | AIRCRAFT SELF-ALIGNING ROLLER WITH PLYA-SEALS. |
| DW | . | AIRCRAFT, WIDE, DOUBLE-ROW. |
| F | . | FLANGED OUTER RING, MOSTLY SMALL INSTRUMENT SIZES. |
| FL | . | AIRCRAFT FAIRLEAD BEARINGS. |
| G | . | RELUBRICATABLE MECHANI-SEAL, WIDE INNER RING BEARING. |
| G | . | AIRCRAFT GUIDE ROLL. |
| G | KLL | DOUBLE MECHANI-SEAL WIDE INNER RING POWER TRANSMISSION BEARING, WITH |
| G | KLLB | DOUBLE MECHANI-SEAL WIDE INNER RING POWER TRANSMISSION BEARING, WITH |
| G | Y | PUSH PULL TYPE GUIDE BEARING (E.G. G4Y17) . |
| GD | . | AIRCRAFT GUIDE ROLL. |
| GN | . | HEAVY SERIES, RELUBRICATABLE, WIDE INNER RING, MECHANI-SEAL BEARINGS. |
| H | . | STAMPED ON BOX ONLY, DESIGNATES SNUG INTERNAL FIT-UP. |
| J | . | EXTRA LOOSE INTERNAL FIT. |
| KA | . | AIRCRAFT AERO SEAL TYPE. |
| KF | . | AIRCRAFT SINGLE ROW, ORIGINALLY FELT SEALS, NOW PLYA-SEALS, SAME DESIGNATION. |
| KP | . | AIRCRAFT SINGLE ROW PLYA-SEAL. |
| KP | A | FULL TYPE AIRCRAFT BEARING, PLYA-SEAL, PRELUBRICATED, MEDIUM DUTY (E.G. |
| KP | AR | TRACK ROLLER TYPE AIRCRAFT BEARING (E.G. KP3AR11-2) . |
| KP | B | FULL TYPE AIRCRAFT BEARING, MEDIUM DUTY, PLYA-SEAL, PRELUBRICATED (E.G. KP37B) . |
| KS | . | AIRCRAFT, SINGLE-ROW, SELF-ALIGNING. |
| KS | L | SELF-ALIGNING AIRCRAFT BEARING, METAL SHIELD, PRELUBRICATED (E.G. KS3L) . |
| L | . | INTERNAL SELF-ALIGNING TYPE. |
| LAK | . | DIRECT MOUNTED BALL BEARING PILLOW BLOCK SERIES DESIGNATION (REPLACEMENT BEARING SERIES G-KLLB) , DOUBLE MECHANI-SEAL, EXTERNAL SELF-ALIGNING BEARING. |
| LAO | . | DIRECT MOUNTED BALL BEARING PILLOW BLOCK SERIES DESIGNATION (REPLACEMENT BEARING SERIES GN-KLLB) , DOUBLE MECHANI-SEAL, EXTERNAL SELF-ALIGNING BEARING. |
| LC | . | CYLINDRICAL CARTRIDGE UNIT (REPLACEMENT BEARING SERIES G-KLLB) . |
| LCJ | . | FLANGE CARTRIDGE UNIT, (REPLACEMENT BEARING SERIES G-KLLB) . |
| LCJO | . | SAME AS LCJ EXCEPT HEAVY SERIES (REPLACEMENT BEARING SERIES (G-KLLB) . |
| LM | . | "L" MEANS DOVETAIL OR UNDERCUT CAM ON WIDE INNER BEARINGS. THE "M" MEANS CLOSER BORE TOLERANCES NOW STANDARD. |
| LP | . | SPECIAL WIDE INNER BEARING, PROCTOR AND SCHWARTZ. |
| LTU | . | TAKE-UP UNIT, (REPLACEMENT BEARING SERIES G-KLLB) . |
| M | . | ABEC-3 TOLERANCE. |
| M | FS60000 | ABEC-5 BEARING, (LAST FOUR DIGITS OF FS SUFFIX ARE FOR CUSTOMER SPECIFICATION) . |
| MC | . | MOTOR CARTRIDGE UNIT (REPLACEMENT BEARING UNIT MUOA) . |
| MM | . | SUPER-PRECISION TYPE MANUFACTURED TO MEET ABEC-7 SPECIFICATION. |
| MUA | . | REPLACEMENT BEARING UNIT FOR DSA-DSADD PILLOW BLOCKS. |
| MUB | . | REPLACEMENT BEARING UNIT FOR SA-SAD-SADD TYPE PILLOW BLOCKS. |
| MUOB | . | REPLACEMENT BEARING UNIT FOR SAO, SAOD, AND SAODD PILLOW BLOCKS. |
| MV | . | ABEC-7 MODIFIED. |
| N | . | HEAVY SERIES, NON-RELUBRICATABLE WIDE INNER RING MECHANI-SEAL BEARINGS. |
| N | KLL | INDUSTRIAL POWER TRANSMISSION BEARING, DOUBLE SEALED, WIDE INNER RING. WITH ECCENTRIC LOCKING COLLAR. |
| N | KLLB | INDUSTRIAL POWER TRANSMISSION BEARING, DOUBLE SEALED, WIDE INNER RING WITH ECCENTRIC LOCKING COLLAR, EXTERNAL SELF-ALIGNING. |
| NLTU | . | TAKE-UP UNIT FRAME, PRESSED STEEL FOR SIDE MOUNTING. |
| P | . | AIRCRAFT SPECIAL PULLEY BEARINGS. |
| P | . | STAMPED ON BOX ONLY, INDICATES LOOSE INTERNAL FIT-UP. |
| PSM | S | REPLACEMENT BEARING FOR SAL PILLOW BLOCK. |
| PSM | TS | REPLACEMENT BEARING FOR SAL PILLOW BLOCK. |
| R | . | REGULAR FIT-UP. |
| R | . | SINGLE CAGE ROLLER BEARING. |
| RA | . | EXTENDED INNER RING SERIES WITH COLLAR. |
| RB | . | DOUBLE SHIELDED RELUBRICATABLE WIDE INNER RING BEARINGS USED IN RUBBER PILLOW BLOCK. |
| RBG | . | RUBBER PILLOW BLOCK WITH PROVISION FOR RELUBRICATION. |
| RBGF | . | RUBBER FLANGE CARTRIDGE UNIT. |
| RBGU | . | SAME AS RBG EXCEPT FURNISHED WITH CORROSION-RESISTANT STEEL STRAP. |
| RE | . | AIRCRAFT ROD-END BEARING. |
| REB | . | ROD-END TYPE. |
| REP | . | PRECISION AIRCRAFT ROD-ENDS. |
| RS | . | RUBBER PILLOW BLOCK, NO PROVISION FOR RELUBRICATION. |
| RSC | . | RUBBER CYLINDRICAL CARTRIDGE UNIT. |
| RSU | . | SAME AS RS EXCEPT FURNISHED WITH CORROSION-RESISTANT STEEL STRAP. |
| S | . | KNOWN AS AEROLITE TYPE FOR AIRCRAFT SERVICE, FEW SPECIAL AIRCRAFT SIZES. |
| S | . | SMALL INCH DIMENSIONS SIZES. |
| S | HD | DUST SEAL COLLAR, SADD PILLOW BLOCK. |
| S | K | COLLAR, WIDE INNER POWER TRANSMISSION BEARING (E.G. S1113K) . |
| S | KD | DUST SEAL COLLAR, SADD SERIES PILLOW BLOCK. |
| S | KT | ECCENTRIC LOCKING COLLAR FOR WIDE INNER RING BEARING (E.G. SLL08KT). |
| S | KTD | DUST SEAL COLLAR, SADD PILLOW BLOCK. |
| S | WD | DUST SEAL COLLAR, SAOD OR SAODD PILLOW BLOCK. |
| SA | . | DIRECT MOUNTED BALL BEARING PILLOW BLOCK SERIES DESIGNATION (REPLACEMENT BEARING UNIT MUB SERIES) SINGLE LABYRINTH SEALED EXTERNAL SELF-ALIGNING BEARING. |
| SA | KD | DUST SEAL COLLAR ONLY FOR SADD PILLOW BLOCK. |
| SA | WD | DUST SEAL COLLAR, SADD SERIES PILLOW BLOCK. |
| SAD | . | PILLOW BLOCK DESIGNATION, SAME AS SA SERIES EXCEPT FURNISHED WITH DUST SEAL COLLAR. |
| SADD | . | PILLOW BLOCK DESIGNATION, SAME AS SA AND SAD EXCEPT FURNISHED WITH DUST SEAL COLLAR AND REAR DUST SEAL . |
| SAL | . | DIRECT MOUNTED BALL BEARING PILLOW BLOCK (REPLACEMENT BEARING SERIES PSM-S OR PSM-TS) , FURNISHED FIXED OR FLOATING, EXTERNAL SELF-ALIGNING BEARING. |
| SAN | KD | DUST SEAL COLLAR, SAOD OR SAODD PILLOW BLOCK. |
| SAN | WD | DUST SEAL COLLAR, SAOD OR SAODD PILLOW BLOCK. |
| SAO | . | DIRECT MOUNTED BALL BEARING PILLOW BLOCK SERIES DESIGNATION (REPLACEMENT BEARING UNIT SERIES MUOB) , SINGLE LABYRINTH SEALED EXTERNAL SELFALIGNING BEARING. |
| SAOD | . | PILLOW BLOCK DESIGNATION, SAME AS SAO EXCEPT FURNISHED WITH DUST SEAL COLLAR. |
| SAODD | . | PILLOW BLOCK DESIGNATION, SAME AS SAO AND SAOD EXCEPT FURNISHED WITH DUST SEAL COLLAR AND REAR DUST SEAL. |
| SAOL | . | SAME AS SAL SERIES EXCEPT FOR HEAVIER SECTION. |
| SCS | . | COUNTERSHAFT BOX UNIT (REPLACEMENT BEARING UNIT SERIES MUB) . |
| SM | . | POWER TRANSMISSION BEARING, SINGLE-ROW, EXTERNAL SELF-ALIGNING WITH ALIGNING RING, WIDE INNER RING WITH ECCENTRIC LOCKING COLLAR. |
| SM | B | INDUSTRIAL POWER TRANSMISSION BEARING, SINGLE-ROW, EXTERNAL SELFALIGNING, WIDE INNER RING WITH ECCENTRIC LOCKING COLLAR, SINGLE LABYRINTH SEAL . |
| SM | K | POWER TRANSMISSION BEARING, SINGLE-ROW, RADIAL, WIDE INNER RING, WITH ECCENTRIC LOCKING COLLAR. |
| SM | KB | POWER TRANSMISSION BEARING, SINGLE-ROW, EXTERNAL SELF-ALIGNING, WIDE INNER RING WITH ECCENTRIC LOCKING COLLAR. |
| SMN | . | BEARING SAME AS FOR SM EXCEPT BEARING IS 300 SERIES. |
| SMN | . | POWER TRANSMISSION BEARING, SINGLE-ROW, EXTERNAL SELF-ALIGNING WITH ALIGNING RING, WIDE INNER RING WITH ECCENTRIC LOCKING COLLAR, HEAVY SERIES (NO SUFFIX) . |
| SMN | A | REPLACEMENT BEARING FOR DSAO AND DSAODD SERIES PILLOW BLOCKS. |
| SMN | B | POWER TRANSMISSION BEARING, SINGLE ROW, EXTERNAL SELF-ALIGNING, SINGLE LABYRINTH SEAL, WIDE INNER RING WITH ECCENTRIC LOCKING COLLAR. |
| SMN | K | POWER TRANSMISSION BEARING, SINGLE-ROW, RADIAL, WIDE INNER RING WITH ECCENTRIC LOCKING COLLAR, HEAVY SERIES. |
| SMN | KB | POWER TRANSMISSION BEARING SINGLE-ROW, EXTERNAL SELF-ALIGNING, WIDE INNER RING WITH ECCENTRIC LOCKING COLLAR, HEAVY SERIES. |
| SMO | . | SIMILAR TO SMN EXCEPT LONGER INNER RING, OLD DESIGNATION. |
| SN | H | ECCENTRIC LOCKING COLLAR. |
| SN | HD | DUST SEAL COLLAR, PILLOW BLOCK. |
| SN | K | ECCENTRIC LOCKING COLLAR. FOR WIDE INNER RING POWER TRANSMISSION BEARING (E.G. SN103K). |
| SN | KD | DUST SEAL COLLAR, PILLOW BLOCK. |
| SN | WD | DUST SEAL .COLLAR. |
| SNW | . | ADAPTER SLEEVE, LOCKNUT, AND LOCKWASHER. |
| T | . | REAR DUST SEAL WHEN FOLLOWED BY SHAFT SIZE (E.G. T-13143 X 1-7/16 INCHES) . |
| T | . | STAMPED ON BOX ONLY, INDICATES TIGHT INTERNAL FIT-UP. |
| T | D | HOUSING, PILLOW BLOCK WITH DUST SEAL COLLAR. |
| TU | . | TAKE-UP UNIT FRAME, CAST IRON. |
| W | . | WIDE TYPE PLYA-SEAL BEARING. |
| WIR | . | SINGLE-ROW BEARING, INNER RING EXTENDED ON ONE SIDE TO DOUBLE-ROW WIDTH. |
| Y | . | AIRCRAFT SPECIAL HELICOPTER BEARINGS. |
| Y | FWI (DB) | AIRCRAFT BEARING, MEDIUM DUTY, RETAINER TYPE, DUPLEX (DB) , PLYA-SEAL (E.G. Y96PWIDB) . |
