


| Designations : | Needle Roller Bearing NA4904 NA4900 NA4901 For Motorcycle Engine Connecting Rod |
| | Needle Roller Bearing with Flanges without Inner Ring |
| Ring Material : | GCR15/ Machined Steel |
| Roller Material : | GCR15/ Chrome Steel |
| Cage Material : | Nylon |
| Number of Row : | Single Row |
| Precision Rating : | P0 P6 P5 P4 |
| Application Industries : | Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Retail, Construction works , Energy & Mining etc. |
| Price List : | Negotiate |
| Service : | OEM or Customer Logo Acceptable and Sample Offer |
| Package : | Industrial Packing or As Customer Required |
| More Service : | plz Contact Us . The contact address is at the bottom. |





| Bearing Model | Dimensions(mm) | | | Basic Load Rating(KN) | | Weight(Kg) | ||
| | d | F | D | Dyn.C | Stat.Co | | ||
| NA4900 | 10mm | 22mm | 13mm | 8800N | 10400N | 0.02Kg | ||
| NA4900 2RS | 10mm | 22mm | 13mm | 7370N | 8150N | 0.03 Kg | ||
| NA4901 | 12mm | 24mm | 13mm | 9900N | 12200 N | 0.03 Kg | ||
| NA4901 2RS | 12mm | 24mm | 13mm | 8090N | 9650N | 0.03 Kg | ||
| NA4902 | 15mm | 28mm | 13mm | 11200N | 15300 N | 0.03 Kg | ||
| NA4902 2RS | 15mm | 28mm | 13mm | 9130N | 12000N | 0.04 Kg | ||
| NA4903 | 17mm | 30mm | 13mm | 11400N | 16300N | 0.04 Kg | ||
| NA4903 2RS | 17mm | 30mm | 13mm | 9520N | 12900 N | 0.04Kg | ||
| NA4904 | 20mm | 37mm | 17mm | 21600 N | 28000 N | 0.08Kg | ||
| NA4904 2RS | 20mm | 37mm | 17mm | 19400N | 22400 N | 0.08Kg | ||
| NA49/22 | 22.000mm | 39mm | 17mm | 23300 N | 32000 N | 0.08 Kg | ||
| NA4905 | 25mm | 42.000mm | 17mm | 24200 N | 34500 N | 0.09 Kg | ||
| NA4905 2RS | 25mm | 42.000mm | 17mm | 21600N | 27500N | 0.09 Kg | ||
| NA49/28 | 28.000mm | 45mm | 17mm | 25100 N | 36500 N | 0.10 Kg | ||
| NA4906 | 30mm | 47mm | 17mm | 25500 N | 39000 N | 0.10 Kg | ||
| NA4906 2RS | 30mm | 47mm | 17mm | 23300 N | 32000 N | 0.11 Kg | ||
| NA49/32 | 32.000mm | 52.000mm | 20mm | 30800 N | 51000N | 0.16 Kg | ||
| NA4907 | 35mm | 55.000 mm | 20mm | 31900 N | 54000 N | 0.17 Kg | ||
| NA4907 2RS | 35mm | 55.000mm | 20mm | 27000 N | 43000 N | 0.18 Kg | ||
| NA4908 | 40mm | 62mm | 22mm | 42900 N | 71000N | 0.23 Kg | ||
| NA4908 2RS | 40mm | 62mm | 22mm | 36900 N | 58500 N | 0.25Kg | ||
| NA4909 | 45mm | 68.000mm | 22mm | 45700 N | 78000 N | 0.27 Kg | ||
| NA4909 2RS | 45mm | 68.000mm | 22mm | 39100 N | 64000 N | 0.29 Kg | ||
| NA4910 | 50mm | 72mm | 22mm | 47300 N | 85000 N | 0.27 Kg | ||
| NA4910 2RS | 50mm | 72mm | 22mm | 40200N | 69500 N | 0.30 Kg | ||
| NA4911 | 55mm | 80.000mm | 25mm | 57200 N | 106000 N | 0.40 Kg | ||
| NA4912 | 60mm | 85.000mm | 25mm | 60500 N | 114000 N | 0.43 Kg | ||
| NA4913 | 65.000mm | 90mm | 25mm | 61600N | 120000 N | 0.46 Kg | ||
| NA4914 | 70.000mm | 100mm | 30mm | 84200 N | 163000 N | 0.73 Kg | ||
| NA4915 | 75.000mm | 105mm | 30mm | 84200 N | 170000 N | 0.78 Kg | ||
| NA4916 | 80.000mm | 110.000mm | 30mm | 88000 N | 183000 N | 0.88 Kg | ||
| NA4917 | 85.000mm | 120mm | 35mm | 108000 N | 250000 N | 1.25 Kg | ||
| NA4918 | 90.000mm | 125.000mm | 35mm | 112000 N | 265000 N | 1.30 Kg | ||
| NA4920 | 100.000mm | 140.000mm | 40mm | 125000N | 280000 N | 1.90 Kg | ||
| NA4922 | 110.000mm | 150.000mm | 40mm | 130000 N | 300000 N | 2.10Kg | ||
| NA4924 | 120.000mm | 165.000mm | 45mm | 176000 N | 405000 N | 2.85 Kg | ||
| NA4926 | 130mm | 180.000mm | 50mm | 198000N | 480000 N | 3.90Kg | ||

| 1 | Needle Roller and Cage Assemblies | K, K‥T2, K‥S, K‥ZW, KMJ, KMJ‥S, KJ‥S, KV‥S |
| | | PCJ |
| 2 | Needle Roller and Cage Assemblies for Connecting Rod | PK |
| | | KBK |
| 3 | Drawn Cup Needle Roller Bearings | HK, HK‥ZWD, HMK, HMK‥ZWD, BK, BK‥ZWD |
| | | HK‥L, HMK‥L, HK‥LL, HMK‥LL, BK‥L |
| | | DCL |
| | | HCK |
| 4 | Machined-Ring Needle Roller Bearings | RNA48, RNA49, RNA59, RNA69, NK, NKS |
| | | NA48, NA49, NA59, NA69, NK+IR, NKS+IR |
| | | MR |
| | | MR+MI |
| | | RNA49‥L, RNA49‥LL |
| | | NA49‥L, NA49‥LL |
| 5 | Machine-ring Needle Roller Bearings Separable Type | RNAO, RNAO‥ZW |
| | | NAO, NAO‥ZW |
| 6 | Self Aligning Needle Roller Bearings | RPNA‥R |
| | | PNA‥R |
| 7 | Inner ring | IR |
| | | MI |
| 8 | Clearance-Adjustable Needle Roller Bearings | RNA49‥S |
| | | NA49‥S |
| 9 | Complex Bearings | NKX, NKX‥Z |
| | | NKX+IR, NKX‥Z+IR |
| | | NKXR, NKXR‥Z |
| | | NKXR+IR, NKXR‥Z+IR |
| | | NKIA |
| | | NKIB |
| | | AXN |
| | | ARN |
| 10 | Cam Followers | KRM‥XH, KRMV‥XH |
| | | KR‥H, KR‥XH, KR‥LLH, KR‥XLLH |
| | | KR, KR‥X, KR‥LL, KR‥XLL |
| | | KRV‥H, KRV‥XH, KRV‥LLH, KRV‥XLLH |
| | | KRV, KRV‥X, KRV‥LL, KRV‥XLL |
| | | KRT, KRT‥X, KRT‥LL, KRT‥XLL |
| | | KRVT, KRVT‥X, KRVT‥LL, KRVT‥XLL |
| | | KRU, KRU‥X, KRU‥LL, KRU‥XLL |
| | | KRVU, KRVU‥X, KRVU‥LL, KRVU‥XLL |
| | | NUKR‥H, NUKR‥XH |
| | | NUKR, NUKR‥X |
| | | NUKRT, NUKRT‥X |
| | | NUKRU, NUKRU‥X |
| | | CR‥H, CR‥XH, CR‥LLH, CR‥XLLH |
| | | CR, CR‥X, CR‥LL, CR‥XLL |
| | | CRV‥H, CRV‥XH, CRV‥LLH, CRV‥XLLH |
| | | CRV, CRV‥X, CRV‥LL, CRV‥XLL |
| 11 | Roller Followers | RNAB2, RNAB2‥X |
| | | NAB2, NAB2‥X |
| | | RNA22‥LL, RNA22‥XLL |
| | | NA22‥LL, NA22‥XLL |
| | | NATR, NATR‥X, NATR‥LL, NATR‥XLL |
| | | NATV, NATV‥X, NATV‥LL, NATV‥XLL |
| | | NACV, NACV‥X, NACV‥LL, NACV‥XLL |
| | | NUTR2, NUTR2‥X, NUTR3, NUTR3‥X |
| | | NUTW, NUTW‥X |
| 12 | Thrust Roller Bearings | AXK11, AS11, WS811, GS811 |
| | | 811, 812, 893, 874, K811, K812, K893, K874, WS811 |
| | | WS812, WS893, WS874, GS811, GS812, GS893, GS874 |
| | | AXA21, ARA821, ZS |
| | | AXB21, ARB821, ZS |
| 13 | One-way Clutches | HF |
| | | HFL |



