REF: General-MSR 91 - Sportsterpedia

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====== REF: General-MSR 91 ======
Originally posted on the XLFORUM by GA_Ironhead ((https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/76838-xl-bearing-numbers?t=548657)) \\

====== 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 ((https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/157766-torrington-bearings-stamped-torr?t=1688503)) ) \\ 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. ((https://www.123bearing.com/bearings-6204-ZZ-C3-SKF#container-tech-schema)) \\ 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 =====
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|HD \\ Bearing#|Years \\ Used On|Description|Application|Cross \\ Reference|
|8860|1954-1977|5/16” Dia \\ Loose Ball Bearings|7/8" Steering Stem Neck brg(28)|
|8871|1991-1994 XL1200 \\ 1995-Up All|  |Nippondenso Starter Drive End brg|NSK 6002VV|
|8876A|1991-2003|Split Plastic \\ Caged Needle Bearings|Trans Mainshaft and Countershaft brg|TORR2 079 (??)|
|8877|1981-1994 All|  |Nippondenso Starter Drive End Drive brg|NSK 6002ZZ|
|8878|1981-1985 XL1000 \\ 1986-1994 XL883|  |Nippondenso Starter Commutator End brg|NSK 608ZZ|
|8882 \\ 8880 (1/95)|1986-1990 All|  |Nippondenso Starter Commutator End brg|NSK 608VV|
|8883|1991-1994 XL1200 \\ 1995-Up All|  |Nippondenso Starter brg, Commutator End|NSK 608VV|
|8885|L1984-Up|Ball bearing|Clutch Pressure Plate brg|Ripan SS NTN 6208|
|:::|Note: Alternate upgrade to OEM - Angular Contact Brg FAG 7200B or SKF 7200BEP ((Thanks to Nibelungen of the XLForum for the cross reference))||||
|8888|L1984–1990|Needle Bearing|C/S Low Gear brg|Torrington B110 \\ SCE 11100H|
|8977|1991-Up|Drawn Cup, Non Thrust \\ Needle Roller Bearing \\ (25mm x 32mm x 26mm)|Countershaft Tranny Case brg|FAG BK2526 \\ INA BK2526|
|8996 \\ 8996A|1991-Present|Deep Groove Ball Bearing \\ Single Row, Open, Steel Cage \\ (45mm x 85mm x 19mm)|Clutch Gear Trapdoor brg|FAG 559197 (CANADA) \\ FAG 6209 C3 \\ SKF 6209 C3|
|8998|1991-2003|Deep Groove Ball Bearing \\ (20 x 47 x 14mm)|Countershaft Trapdoor brg|FAG 6204 C3 \\ SKF 6204 C3|
|9007|1958-1981|  |Generator Drive End brg|FAG 6202-ZR C3 \\ SKF 6202Z|
|9008|1955–1978 \\ 1954–1963|  |Rear Wheel brg \\ Front Wheel brg|NTN 6203Z C3|
|9009|1954–1972 \\ 1963 – 1978|  |Front Wheel brg \\ Rear Wheel brg|Fafnir 203KD|
|9010|1954–1962|  |Rear Wheel Bearings \\ (Double Row Brake Side)|(1) dbl row, MRC 5203SBKF \\ or (1)-NSK 6203 \\ and (1)-NSK 6203Z|
|9025A|1954–1990|   |Four Speed Clutch Trapdoor brg|NTN 6207ZZ \\ Fafnir 207KDD \\ NTN 6207Z|
|9052|1973-Up \\ 1979-Up|Tapered Roller Bearings|Front Wheel brg \\ Rear Wheel brg|Timken Race LM11910 \\ Timken Bearing  LM11949|
|9057|L1958–1990|Needle Bearings|Inner Cam brgs|Torrington B-117|
|9062|1967–1980|  |Starter Motor Gear Housing brg|M8101 \\ INA BCE810|
|9063|1967–1980|Needle Bearings|Primary Cover Starter Shaft brg|Torrington B1210 \\ INA S1210 \\ IKO BA1210Z|
|9073|1971-E1984|  |Clutch Pressure Plate brg \\ Prestolite Starter Motor Drive End brg|Fafnir S8NPP \\ NSK R12VV \\ OEM 31539-66|
|9088|1958–1981|Needle Bearings|Generator Commutator End brg|INA BCE89|
|9118|L1984–Up|  |Mainshaft Tranny Case brg|Torrington BH2012|
|9151|1991-2003|Bearings \\ (closed end)|Right Case Shifter Drum brg|  |
|18534-29A|1957-Up|  |Tappet Roller brg|Japan BRV4146 \\ EOIIKOG (??)|
|24604-00C|2004-2005|Ball Bearing|Crankshaft brg|  |
|24604-00D|2006-2008|Ball Bearing|Crankshaft brg|  |
|24605-07|2009-up|Ball Bearing|Crankshaft brg|  |
|24648-77|1977–1986|  |Right Crankcase Pinion Shaft brg|Torrington J202816|
|24729-52|1954–1976|  |Left Crankcase Shaft brg|Timken Race 0719D \\ Torr Bearing RA52340-1 (??)|
|24729-74|1977–1990|Tapered Roller Bearings|Left Case Sprocket Shaft brg|Timken Race L44610 \\ Timken Bearing L44649|
|29563-55|1958-1969 XLCH|Angular Contact \\ Extra Light Brg|Magneto Rotor Shaft End Brg|MRC 7109 (USA)|
|29916-82|1982-E1984|  | Hitachi Generator Commutator End brg|NSK 6201VV|
|29917-82|1982–E1984|  |Hitachi Generator Drive End brg|NSK (325) 604DU (??)|
|31539-66|1967–1980|  |Prestolite Starter Motor Drive End brg|Fafnir S8PP \\ NSK R12VV|
|31583-73|1974–1976|  |Hitachi Starter Motor Drive End brg|NSK 6004VV|
|35030-89|1991-2003|Deep Groove Ball Bearing \\ (25mm x 62mm x 17mm)|Transmission Mainshaft Trapdoor brg|FAG 6305 C3|
|35051-89|1991-Up|Needle Bearings|Mainshaft Fifth Drive Gear brg|FAG HK2520|
|35960-54|1954–1990|Needle Bearing (closed end) \\ (17.46 x 22.23 x 19.05mm)|Countershaft brg|Torrington M-11121|
|35961-52|1954–1990|Needle Bearings \\ (open end)|Countershaft brg|Torrington B-1212|
|36799-84|Late 1984–1990|Ball Bearings|Clutch Basket brg|NTN 6089Z (??)|
|37722-52|1954–1970|Needle Bearings|Clutch Basket brg|Torrington B-229|
|37722-71|1971–E1984|Ball Bearings|Clutch Basket brg|Fafnir 206KDD \\ NSK 6206ZZ|
|45586-78|1978–1981|Tapered Roller Bearings|15/16" Steering Stem Neck brgs|Timken Race L44610 \\ Timken Bearing L44640|
|47098-81|1982-Up|Tapered Roller Bearings|Right Side Swingarm brgs|Timken Race LM11710 \\ Timken Bearing LM11749|
|47521-74|L1974–1981|Tapered Roller Bearings|Swingarm Brgs|Timken Race 11520 \\ Timken Bearing 11590|
|47550-74|E1974-Earlier|Tapered Roller Bearings|Swingarm Brgs|Timken Race 17520 \\ Timken Bearing 17580|
|48300-60|1982-Up|Tapered Roller Bearings|1" Steering Stem Neck brgs|Timken Bearing L44643 \\ Timken Race L44610|
|559322|  |  |Buell Transmission 5th Gear brg|SKF 6209 C3 \\ (45 x 85 x 19mm) ((rubine of the XLFORUM))| 

\\

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