Catalog: Components Needle rollers / Snap rings / Seals | |
| components needle rollers/snap rings/seals ... | |
| needle rollers ntn needle rollers ntn needle rollers are all made of high carbon chrome bearing steel fine-finished by grinding and polishing after heat-treated and the hardness thereof ranges from hrc60 to 65 these needle rollers are supplied as not only rolling element but also pin and shaft individuals needle roller tolerances any needle rollers are manufactured with dimensional accuracy and profile accuracy conforming to jis b 1506 rollers for roller bearings table 2 table 2 needle roller tolerances unit m end face profile of needle roller f-type needle roller bearing with flat end face is ... | |
| needle rollers ntn application of needle rollers when composing a full-complement roller type needle roller bearing using standard needle rollers shaft diameter d housing hole diameter d circumferential clearance c and radial clearance r must be determined respectively these can be calculated as follows from needle roller diameter dw and number of rollers z refer to fig 2 determine the minimum value of circumferential clearance c using formula 1 and select radial clearance r according to applicable shaft diameter and operating conditions in reference to table 5.1 as the guideline of 5.1 bearing ... | |
| needle rollers type f type a ntn type f type a dw 1.5 4.5mm boundary dimensions mm dw lw bearing numbers mass kg flat type disk type per 1 000 pcs boundary dimensions mm dw lw bearing numbers mass kg flat type disk type per 1 000 pcs 5.8 6.8 1.5 7.8 9.8 11.8 13.8 6.8 7.8 9.8 2 11.8 13.8 15.8 17.8 19.8 7.8 9.8 11.8 13.8 2.5 15.8 17.8 19.8 21.8 23.8 9.8 11.8 13.8 3 15.8 17.8 19.8 21.8 f1.5 f1.5 f1.5 f1.5 f1.5 f1.5 f2 f2 f2 f2 f2 f2 f2 f2 f2.5 f2.5 f2.5 f2.5 f2.5 f2.5 f2.5 f2.5 f2.5 f3 f3 f3 f3 f3 f3 f3 5.8 6.8 7.8 9.8 11.8 13.8 6.8 7.8 9.8 11.8 13.8 15.8 17.8 19.8 7.8 9.8 11.8 13.8 15.8 17.8 19.8 ... | |
| needle rollers ntn dw 4.5 5mm boundary dimensions mm dw lw bearing numbers mass kg flat type disk type per 1 000 pcs 23.8 25.8 29.8 4.5 31.8 34.8 37.8 39.8 44.8 19.8 21.8 23.8 25.8 5 29.8 31.8 34.8 37.8 39.8 49.8 f4.5 f4.5 f4.5 f4.5 f4.5 f4.5 f4.5 f4.5 f5 f5 f5 f5 f5 f5 f5 f5 f5 f5 23.8 25.8 29.8 31.8 34.8 37.8 39.8 44.8 19.8 21.8 23.8 25.8 29.8 31.8 34.8 37.8 39.8 49.8 a4.5 a4.5 a4.5 a4.5 a4.5 a4.5 a4.5 a4.5 a5 a5 a5 a5 a5 a5 a5 a5 a5 a5 23.8 25.8 29.8 31.8 34.8 37.8 39.8 44.8 19.8 21.8 23.8 25.8 29.8 31.8 34.8 37.8 39.8 49.8 2.86 3.11 3.62 3.87 4.25 4.63 4.88 5.51 2.89 3.20 3.52 3.82 4.45 4.74 ... | |
| snap rings ntn snap rings these snap rings are used exclusively for fixing or guiding a needle roller bearing ring or cage in axial direction furthermore these snap rings have the profile identical to c-type concentric snap ring specified in jis b 2806 and in addition snap rings with smaller section height b and also available in smaller dimension range are manufactured according to application of needle roller bearings these snap rings are manufactured using hard steel wire rod and after manufactured chemical conversion treatment is applied to the surface thereof composition of nominal number ... | |
| snap rings for shaft type wr ntn bearing numbers d1 boundary dimensions mm d3 max b s 0.06 limiting speeds r/min bearing numbers d1 boundary dimensions mm d3 max b s 0.06 limiting speeds r/min d2 d2 wr 4 wr 5 wr 6 wr 7 wr 8 wr 9 wr10 wr11 wr12 wr13 wr14 wr15 wr16 wr17 wr18 wr19 wr20 wr21 wr22 wr23 wr24 wr25 wr26 wr28 wr29 wr30 wr32 wr35 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 29 30 32 35 3.7 4.7 5.6 6.5 7.4 8.4 9.4 10.2 11.2 12.2 13.1 14 15 16 17 17.9 18.7 19.7 20.7 21.7 22.5 23.5 24.5 26.5 27.5 28.5 30.2 33.2 0.8 1 1.1 1.2 1.3 1.3 1.3 1.3 1.3 1.3 1.5 0.5 0.5 0.7 0.7 1 ... | |
| snap rings for shaft type wr ntn bearing numbers d1 boundary dimensions mm d3 max b s 0.06 limiting speeds r/min bearing numbers d1 boundary dimensions mm d3 max b s 0.06 limiting speeds r/min d2 d2 wr105 wr110 wr115 wr120 wr125 wr130 wr135 wr140 wr145 wr150 wr155 wr160 wr165 wr170 wr175 wr180 wr185 wr190 wr195 wr200 wr210 wr220 wr225 wr230 wr240 wr250 wr260 wr265 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 210 220 225 230 240 250 260 265 101.7 106.7 111.7 116.7 121.7 126.7 131.6 136.6 141.6 146.6 151.6 156.6 161.6 166.6 171.6 175.6 180.6 185.6 190.6 195.6 205.6 ... | |
| snap rings for housing type br ntn bearing numbers d1 boundary dimensions mm d3 min b s 0.06 bearing numbers d2 d1 boundary dimensions mm d3 min b s 0.06 d2 br 7 br 8 br 9 br10 br11 br12 br13 br14 br15 br16 br17 br18 br19 br20 br21 br22 br23 br24 br25 br26 br27 br28 br29 br30 br31 br32 br33 br34 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 7.5 8.5 9.5 10.6 11.6 12.7 13.8 14.8 15.8 16.8 17.8 18.9 19.9 21 22 23 24 25.2 26.2 27.2 28.2 29.2 30.2 31.4 32.4 33.4 34.4 35.4 1 1 1.1 1.2 1.3 1.3 1.3 1.3 1.3 1.6 1.6 1.75 1.75 1.75 1.75 1.75 1.75 1.75 1.75 1.75 1.75 1.75 ... | |
| snap rings for housing type br ntn bearing numbers d1 boundary dimensions mm d3 min b s 0.06 bearing numbers d2 d1 boundary dimensions mm d3 min b s 0.06 d2 br 66 br 68 br 70 br 72 br 73 br 74 br 75 br 76 br 77 br 78 br 79 br 81 br 82 br 83 br 85 br 86 br 88 br 90 br 92 br 93 br 95 br 97 br 98 br100 br102 br103 br105 br107 66 68 70 72 73 74 75 76 77 78 79 81 82 83 85 86 88 90 92 93 95 97 98 100 102 103 105 107 68.3 70.3 72.3 74.6 75.6 76.6 77.6 78.6 79.6 80.6 81.6 83.6 84.6 85.6 87.6 88.6 91 93 95 96 98 100 101 103 105.3 106.3 108.3 110.3 2.3 2.3 2.3 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 ... | |
| snap rings ntn bearing numbers d1 boundary dimensions mm d3 min b s 0.06 d2 br195 br200 br205 br210 br215 br220 br225 br230 br240 br250 br260 br270 br280 br300 br320 br325 br350 br355 br360 br375 br380 br385 br395 br400 br415 br420 br440 195 200 205 210 215 220 225 230 240 250 260 270 280 300 320 325 350 355 360 375 380 385 395 400 415 420 440 199.5 204.5 209.5 214.5 219.5 224.5 229.5 234.5 244.5 254.5 267 277 287 307 327 332 357 362 367 382 387 392 402 407 422 427 447 5 5 5 5 5 5 5 5 5 5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 ... | |
| seals ntn seals seals these are the special-purposed seals ... needle roller bearings these contact seals are made of synthetic rubber reinforced ... to contact ntn for the use of these seals under special operating condition e.g ... of over 120°c fitting relations the seal contact surface must be finished by ... grinding after hardened to get its good sealing performance in addition harmful flaw ... indent are not allowed to exist on the seal contact surface where the inner ring ... raceway surface is used as seal contact surface a wide inner ring must ... be used when fitting a seal in a bearing it is desirable to taper ... housing end face so as to protect the seal lip and outer surface from damaging as ... as illustrated in fig.5 regarding the seal to housing interference a adequate ... | |
| seals type g type gd ntn type g type gd ... | |
| seals type g type gd ntn type g type gd ... | |
