roller followers cam followers
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roller followers yoke-type track rollers ntn roller followers yoke type track rollers ntn yoke type track rollers is the rolling mechanisms whose outer ring rolls on a track for example these track rollers are applied to eccentric roller guide roller rocker arm roller cam roller and pressure roller for that the outer ring is designed to such a wall thickness as to be resistible to high load and shock load bearing type applied shaft diameter mm both of spherical outer surface rolling surface and cylindrical outer surface are available for the outer ring the spherical outer ring can damp edge-load acting on the contact surface between the track and the track roller while the cylindrical outer ring tail code x has track load capacity greater than the spherical outer ring load capacity composition of nominal bearing number rna22 rna 22 6 ll tail code ll seal dimension code dimension series code cor type code 6 na22 58 na 22 06 x ll cr tail code ll seal tail code x cylinder outer diameter
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roller followers yoke-type track rollers ntn track roller components features inscribed circle diameter 6 type with cage inner ring without outer profile spherical seal with inscribed circle diameter 30 type with cage inner ring with outer profile cylindrical seal with ¡the needle rollers and the cage are retained in the outer ring with a steel plate reinforced synthetic rubber seal and these are inseparable from each other ¡the needle rollers guided by cage ¡shaft pin must be provided with a thrust washer or a flange to guide the outer ring inscribed circle diameter 30 type with cage outer profile cylindrical seal with ¡needle rollers guided by cage ¡the outer ring is guided in axial direction by the thrust washer press-fitted in the inner ring ¡labyrinth is formed between the outer ring and the thrust washer inscribed circle diameter 30 full complement roller type outer profile cylindrical seal with inscribed circle diameter 15.875 full complement roller type outer pro
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roller followers yoke-type track rollers ntn bearing tolerances the respective dimensional accuracy profile accuracy and running accuracy of the bearing bore diameter d cylindrical roller outer diameter d and outer ring width c are as shown in table 4.3 of section 4 bearing accuracy page a-26 conforming to jis accuracy class-0 on the other hand the dimensional tolerances for spherical roller outer diameter d and the roller inscribed circle diameter fw of type rna22 are as shown in applicable dimensions table 2 where the roller follower is mounted locate the inner ring oil hole within the non-load area load free side fig 2 if the oil hole locates within the load area it would cause shorter life oil hole bearing fits and radial clearance the tolerance range class of shaft against bearing with inner ring shall be g6 h6 and where a shaft is used as the direct raceway surface type rna22 the tolerance range class of the shaft shall be k5 k6 in general the outer ring is not fitted in
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roller followers yoke-type track rollers ntn lubrication the roller followers with synthetic rubber seal with tail code ll and the full complement roller type followers are filled up with lithium soap base grease so that they can be used in the temperature range of -25 to +100°c lubricant feeding and replenishing into the bearing are done through an oil hole provided on the inner ring in this case the inner ring must be fitted so the oil hole locates within non-load area for the full complement roller type roller followers natv nacv nutr and nutw with no cage it is necessary to shorten the grease replenishing interval further a roller follower with cage and without seal is not filled up with lubrication grease when needing a follower with grease-filled cage feel free to contact ntn the outer ring outer surface of bearing and the track surface must both be lubricated failure to lubricate could result earlier in damage of the bearing track load capacity statically allowable maximum radi
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roller followers yoke type truck rollers sealed type metric series type na22 ll type rna22 ll ntn type na22 ll with inner ring type rna22 ll without inner ring d 19 90mm boundary dimentions dynamic d 0 0.05 b c d mm fw 0.022 0.013 0.027 0.016 0.027 0.016 0.027 0.016 0.033 0.020 0.033 0.020 0.033 0.020 0.033 0.020 0.041 0.025 0.041 0.025 0.041 0.025 0.049 0.030 0.049 0.030 basic load ratings static dynamic static n kgf cor cr cor load ratings of truck n kgf e f rs min1 cr 19 24 30 32 35 40 47 52 62 72 80 85 90 note 1 allowable minimum chamfer dimension r 2 for bearing with cylindrical outer surface the nominal bearing is followed by x in this case the bearing is manufactured with outer ring diameter tolerance conforming to jis class-0 ex na2203xll b-166
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roller followers yoke type truck rollers sealed type limiting speeds r/min grease bearing numbers type type na22 ll2 rna22 ll2 mass approx kg type type na22 ll rna22 ll 10 000 10 000 10 000 9 500 7 500 7 000 6 000 5 000 4 300 3 600 3 100 2 900 2 600 na22/6ll rna22/6ll na22/8ll rna22/8ll na2200ll rna2200ll na2201ll rna2201ll na2202ll rna2202ll na2203ll rna2203ll na2204ll rna2204ll na2205ll rna2205ll na2206ll rna2206ll na2207ll rna2207ll na2208ll rna2208ll na2209ll rna2209ll na2210ll rna2210ll 0.023 0.035 0.060 0.067 0.075 0.113 0.176 0.209 0.322 0.506 0.623 0.638 0.682 0.018 0.027 0.052 0.057 0.060 0.094 0.152 0.179 0.284 0.432 0.530 0.545 0.563 b-167
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roller followers yoke-type track rollers metric series type natr type natr ll type natv type natv ll d ntn b c r 500 d f e type natr with cage type natr ll sealed type with cage d 16 90mm boundary dimensions dynamic d 0 0.05 b mm c basic load ratings static dynamic static n kgf cor cr cor load ratings of truck n kgf limiting speeds r/min grease d e fw cr oil 16 12 12 12 12 15 15 15 15 15 15 19 19 21 21 25 25 25 25 29 29 29 29 32 32 32 32 32 0 0.180 11 11 5 5 6 6 8 8 10 10 12 12 15 15 17 17 20 20 25 25 30 30 35 35 40 40 45 50 50 12 12 14 14 19 19 23 23 25 25 27 27 32 32 37 37 42 42 51 51 58 58 66 66 71 76 76 8 8 10 10 12 12 15 15 17 17 20 20 22 22 25 25 30 30 38 38 4 050 6 500 4 750 7 450 6 900 10 700 7 850 12 000 8 850 13 000 13 300 18 400 14 000 19 400 20 700 28 800 22 800 31 500 36 000 4 200 9 350 5 400 11 700 7 700 16 200 9 650 20 300 11 700 23 000 20 800 38 000 22 800 42 000 33 500 61 000 40 500 73 500 66 000 415 665 480 760 705 1 090 800 1 230 900 1 330 1 360 1 870 1 430 1 980 2 1
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roller followers yoke-type track rollers ntn bcdrdfe type natv full complement type type natv ll full complement type with seals bearing numbers 1 mass kg approx type natr type natr ll type natv type natv ll natr5 natv5 natr6 natv6 natr8 natv8 natr10 natv10 natr12 natv12 natr15 natv15 natr17 natv17 natr20 natv20 natr25 natv25 natr30 natv30 natr35 natv35 natr40 natv40 natr45 natr50 natv50 natr5ll natv5ll natr6ll natv6ll natr8ll natv8ll natr10ll natv10ll natr12ll natv12ll natr15ll natv15ll natr17ll natv17ll natr20ll natv20ll natr25ll natv25ll natr30ll natv30ll natr35ll natv35ll natr40ll natv40ll natr45ll natr50ll natv50ll 0.018 0.020 0.025 0.027 0.042 0.044 0.061 0.065 0.069 0.074 0.098 0.102 0.140 0.145 0.246 0.254 0.275 0.285 0.470 0.481 0.635 0.647 0.875 0.890 0.910 0.960 0.990 b-169
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roller followers yoke-type track rollers inch series type nacv x type nacv xll ntn type nacv x full complement d 19.050 152.400mm boundary dimentions dynamic mm 25.4mm d 0 0.025 basic load ratings static dynamic static n kgf cor cr cor b 0 0.250 c 0 0.130 d 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.005 0.010 0.002 0.013 0.002 0.013 0.002 0.013 0.002 0.013 0.002 0.013 0.002 0.013 e fw cr 19.050 4 22.225 8 25.4001 28.5751 8 31.7501 4 34.9251 8 38.1001 2 41.2751 8 44.4501 4 47.6251 8 50.8002 57.1502 4 63.5002 2 69.8502 4 76.2003 82.5503 4 88.9003 2 101.6004 127.0005 152.4006 14.288 16 14.288 16 17.462 16 17.462 16 20.638 16 20.638 16 23.812 16 23.812 16 26.9881 16 26.9881 16 33.3381 16 33.3381 16 39.6881 16 39.6881 16 46.0381 16 46.0381 16 52.3882 16 58.7382 16 73.0252 8 85.7253 8 12.700 2 12.700 2 15.875 8 15.875 8 19.050 4 19.050 4 22.225 8 2
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roller followers yoke-type track rollers ntn type nacv xll full complement sealed type load ratings of truck n kgf limiting speeds r/min grease oil bearing numbers type nacv x1 type nacv xll1 mass approx kg type nacv x 4 600 5 350 7 400 8 350 11 400 12 500 16 300 17 600 21 600 23 200 31 000 35 000 44 500 49 000 64 000 69 000 86 000 112 500 165 500 239 500 1 380 1 710 2 060 2 430 2 840 3 250 3 600 4 050 4 400 4 850 5 300 6 200 7 200 8 250 9 150 10 000 11 100 13 200 17 900 22 100 470 545 755 850 1 160 1 280 1 660 1 800 2 200 2 360 3 150 3 550 4 550 5 000 6 500 7 050 8 800 11 500 16 900 24 400 140 174 210 248 290 330 365 410 450 495 540 635 735 840 935 1 020 1 130 1 350 1 830 2 250 9 000 9 000 7 100 7 100 5 400 5 400 4 800 4 800 4 100 4 100 3 700 3 700 3 200 3 200 2 700 2 700 2 200 2 200 1 500 1 200 11 000 11 000 9 200 9 200 7 000 7 000 6 200 6 200 5 300 5 300 4 800 4 800 4 100 4 100 3 500 3 500 2 800 2 800 1 900 1 500 nacv12x nacv14x nacv16x nacv18x nacv20x nacv22x nacv24x nacv26x nacv2
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roller followers yoke-type track rollers metric series type nutr2 type nutr3 r d ntn b c r 500 dfed 35 110mm boundary dimensions mm d 0 0.05 basic load ratings dynamic static dynamic static n kgf cr cor cr cor load ratings of truck n kgf b 0 0.210 0 0.210 0 0.210 0 0.210 c d e fw rs min 1 limiting bearing 2 speeds numbers r/min grease mass kg approx 35 19 40 21 42 19 47 21 25 25 25 25 29 29 29 29 32 18 15 20 19 0.3 22 300 24 100 22 300 24 100 38 500 38 500 42 500 42 500 56 500 56 500 62 000 62 000 25 700 2 280 29 100 2 450 25 700 2 280 29 100 2 450 48 000 3 950 48 000 3 950 57 500 4 350 57 500 4 350 72 500 5 750 72 500 5 750 85 500 6 350 85 500 6 350 2 620 2 970 2 620 2 970 4 900 4 900 5 850 5 850 7 400 7 400 8 700 8 700 3 200 11 900 3 850 14 500 4 100 14 300 4 700 17 000 4 700 21 000 5 550 23 300 5 550 23 300 6 950 27 800 6 950 33 000 8 050 38 500 8 050 37 000 325 1 220 390 1 480 415 1 460 480 1 740 480 2 150 565 2 370 565 2 370 710 2 830 710 3 350 820 3 900 820 3 750 5 500 nutr202 4
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roller followers yoke-type track rollers metric series type nutw2 ntn d 35 90mm boundary dimensions mm d 0 0.05 basic load ratings dynamic static dynamic static n kgf cr cor cr cor load ratings of truck n kgf b 0 0.210 0 0.210 0 0.210 0 0.210 0 0.210 0 0.210 0 0.250 0 0.250 0 0.250 c d e fw rs min 1 limiting bearing 2 speeds numbers r/min grease mass kg approx 35 22 40 24 47 29 52 29 62 35 72 35 80 38 85 38 90 38 21 15 20 19 0.3 24 100 26 000 40 500 45 000 59 500 65 000 28 300 2 460 32 000 2 650 51 500 4 150 61 500 4 600 77 000 6 050 91 000 6 650 2 880 3 250 5 250 6 250 7 900 9 250 3 200 14 200 3 850 17 100 4 700 25 100 5 550 27 700 6 950 41 000 8 050 46 000 325 1 450 390 1 740 480 2 560 565 2 830 710 4 200 820 4 700 5 500 nutw202 0.115 4 700 nutw203 0.167 4 000 nutw204 0.280 3 300 nutw205 0.322 2 900 nutw206 0.549 2 400 nutw207 0.747 2 100 nutw208 0.953 1 900 nutw209 1.03 1 800 nutw210 1.11 23 17 22 21.5 0.3 28 20 27 25.5 0.3 28 25 31 30 34 30 38 35 0.3 0.3 34 35 44 41.5 0.6 36 40 51
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