REF: General-MSR 91

Originally posted on the XLFORUM by GA_Ironhead 1)

Notes

  • On NSK bearings: “V” = rubber seal on one side; “V V” = rubber seal on both sides; “Z” = steel shield on one side; “ZZ” = steel.
    • Shield on both sides; “DU” = heavy contact seal one side; “DDU” = heavy contact seal both sides.
    • “Heavy Contact” = higher drag. Normally the “V V” seal is sufficient (I have never seen “DW” on an NSK bearing).
  • Ball bearing mfgrs.
    • All use their own numbering system although many of them are similar to each other.
    • Fafnir: “P” = rubber seal, “KD” = steel shield, etc.
    • SKF: “RS” = rubber seal, “Z” = steel shield, etc.
    • No suffix = no seal or shield
  • On Torrington inner cam bearings (from XLF member, Vanmor on Oct 8,2013 2) )
    Got a box in today. There were eight BH-117 bearings in individual boxes.
    However, these said KOYO on them and the bearings say BH-117 but are stamped TORR, not TORRINGTON.
    I found out that Timken, who was the former owner of Torrington needle bearings, sold the company to KOYO Seiko of Japan several years ago.
    At the time of the acquisition, the plants in the USA were just renamed KOYO and still produced the same bearings as always.
    My only worry is, did these come from China?
    A lot of Japanese companies have followed the lead of other companies in other countries to make stuff in China and box it as made in Japan.
    My KOYO bearings say made in USA. So be aware, your next cam bearings may say KOYO on them.
  • Seals retain grease & exclude contaminants. Shields do not – they need an auxiliary seal to do that.
  • Often ball bearings that are sealed or shielded on both sides are cheaper (because they are more common).
  • You can safely pry out the seal/shield on the side where it’s not needed.
  • I’ve listed mostly double sealed/shielded bearings in the chart.
  • The “C3” designation on some ball bearings is a clearance designation (the clearance, or “fit”, between the balls & the outer race).
    C3 bearings are common (probably the most common), and can be used in many applications.
    C3 or C4 (requires a higher operating temp or higher rotational speed) means the bearing is designed for high rotational speeds and moderately high temperatures. 3)
    WARNING, an increased internal clearance bearing will not operate optimally at low speeds.
  • Tapered roller bearing mfgrs all use the same numbering system, although some use a “4T-” prefix.
  • AVOID CHINESE, TAIWANESE & EASTERN EUROPEAN BEARINGS LIKE THE PLAGUE.
    THEY ARE CHEAP BUT IN THE LONG RUN THEY ARE NOT INEXPENSIVE!
  • GOOD BALL & ROLLER BEARINGS ARE NOT THAT MUCH MONEY.
    SPEND THE EXTRA & SAVE A LOT OF HEADACHES IN THE LONG RUN.

XL Bearing Numbers

HD
Bearing#
Years
Used On
DescriptionApplicationCross
Reference
88601954-19775/16” Dia
Loose Ball Bearings
7/8“ Steering Stem Neck brg(28)
88711991-1994 XL1200
1995-Up All
Nippondenso Starter Drive End brgNSK 6002VV
8876A1991-2003Split Plastic
Caged Needle Bearings
Trans Mainshaft and Countershaft brgTORR2 079 (??)
88771981-1994 All Nippondenso Starter Drive End Drive brgNSK 6002ZZ
88781981-1985 XL1000
1986-1994 XL883
Nippondenso Starter Commutator End brgNSK 608ZZ
8882
8880 (1/95)
1986-1990 All Nippondenso Starter Commutator End brgNSK 608VV
88831991-1994 XL1200
1995-Up All
Nippondenso Starter brg, Commutator EndNSK 608VV
8885L1984-Up Clutch Pressure Plate brgRipan SS NTN 6208
8888L1984–1990Needle BearingC/S Low Gear brgTorrington B110
SCE 11100H
89771991-UpDrawn Cup, Non Thrust
Needle Roller Bearing
(25mm x 32mm x 26mm)
Countershaft Tranny Case brgFAG BK2526
INA BK2526
8996
8996A
1991-PresentDeep Groove Ball Bearing
Single Row, Open, Steel Cage
(45mm x 85mm x 19mm)
Clutch Gear Trapdoor brgFAG 559197 (CANADA)
FAG 6209 C3
SKF 6209 C3
89981991-2003Deep Groove Ball Bearing
(20 x 47 x 14mm)
Countershaft Trapdoor brgFAG 6204 C3
SKF 6204 C3
90071958-1981 Generator Drive End brgFAG 6202-ZR C3
SKF 6202Z
90081955–1978
1954–1963
Rear Wheel brg
Front Wheel brg
NTN 6203Z C3
90091954–1972
1963 – 1978
Front Wheel brg
Rear Wheel brg
Fafnir 203KD
90101954–1962 Rear Wheel Bearings
(Double Row Brake Side)
(1) dbl row, MRC 5203SBKF
or (1)-NSK 6203
and (1)-NSK 6203Z
9025A1954–1990 Four Speed Clutch Trapdoor brgNTN 6207ZZ
Fafnir 207KDD
NTN 6207Z
90521973-Up
1979-Up
Tapered Roller BearingsFront Wheel brg
Rear Wheel brg
Timken Race LM11910
Timken Bearing LM11949
9057L1958–1990Needle BearingsInner Cam brgsTorrington B-117
90621967–1980 Starter Motor Gear Housing brgM8101
INA BCE810
90631967–1980Needle BearingsPrimary Cover Starter Shaft brgTorrington B1210
INA S1210
IKO BA1210Z
90731971-E1984 Clutch Pressure Plate brg
Prestolite Starter Motor Drive End brg
Fafnir S8NPP
NSK R12VV
OEM 31539-66
90881958–1981Needle BearingsGenerator Commutator End brgINA BCE89
9118L1984–Up Mainshaft Tranny Case brgTorrington BH2012
91511991-2003Bearings
(closed end)
Right Case Shifter Drum brg
18534-29A1957-Up Tappet Roller brgJapan BRV4146
EOIIKOG (??)
24604-00C2004-2005Ball BearingCrankshaft brg
24604-00D2006-2008Ball BearingCrankshaft brg
24605-072009-upBall BearingCrankshaft brg
24648-771977–1986 Right Crankcase Pinion Shaft brgTorrington J202816
24729-521954–1976 Left Crankcase Shaft brgTimken Race 0719D
Torr Bearing RA52340-1 (??)
24729-741977–1990Tapered Roller BearingsLeft Case Sprocket Shaft brgTimken Race L44610
Timken Bearing L44649
29563-551958-1969 XLCHAngular Contact
Extra Light Brg
Magneto Rotor Shaft End BrgMRC 7109 (USA)
29916-821982-E1984 Hitachi Generator Commutator End brgNSK 6201VV
29917-821982–E1984 Hitachi Generator Drive End brgNSK (325) 604DU (??)
31539-661967–1980 Prestolite Starter Motor Drive End brgFafnir S8PP
NSK R12VV
31583-731974–1976 Hitachi Starter Motor Drive End brgNSK 6004VV
35030-891991-2003Deep Groove Ball Bearing
(25mm x 62mm x 17mm)
Transmission Mainshaft Trapdoor brgFAG 6305 C3
35051-891991-UpNeedle BearingsMainshaft Fifth Drive Gear brgFAG HK2520
35960-541954–1990Needle Bearing (closed end)
(17.46 x 22.23 x 19.05mm)
Countershaft brgTorrington M-11121
35961-521954–1990Needle Bearings
(open end)
Countershaft brgTorrington B-1212
36799-84Late 1984–1990Ball BearingsClutch Basket brgNTN 6089Z (??)
37722-521954–1970Needle BearingsClutch Basket brgTorrington B-229
37722-711971–E1984Ball BearingsClutch Basket brgFafnir 206KDD
NSK 6206ZZ
45586-781978–1981Tapered Roller Bearings15/16” Steering Stem Neck brgsTimken Race L44610
Timken Bearing L44640
47098-811982-UpTapered Roller BearingsRight Side Swingarm brgsTimken Race LM11710
Timken Bearing LM11749
47521-74L1974–1981Tapered Roller BearingsSwingarm BrgsTimken Race 11520
Timken Bearing 11590
47550-74E1974-EarlierTapered Roller BearingsSwingarm BrgsTimken Race 17520
Timken Bearing 17580
48300-601982-UpTapered Roller Bearings1“ Steering Stem Neck brgsTimken Bearing L44643
Timken Race L44610
559322 Buell Transmission 5th Gear brgSKF 6209 C3
(45 x 85 x 19mm) 4)


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