Double-Row
Cylindrical Roller Bearing
Double-Row Cylindrical Roller Bearing (NSK)
주)1. 공작기계용 Spindle의 첨부 기호는 .MBKR.E44.CC1.P4를 사용할 것.
예) NN3017 + .MBKR.E44.CC1.P4 = NN3017.MBKR.E44.CC1.P4
Numbering System of Double-Row Cylindrical Roller Bearings (High Rigidity Series)
| NN | 30 | 17 | | MB | KR | E44 | CC1 | P4 |
|---|
| ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑦ | ⑨ |
|---|
①Bearing type
NN : double-row cylindrical roller bearing with triple-ribbed inner ring,
NNU: double-row cylindrical roller bearing with triple-ribbed outer ring
② Dimension
30 : 30 series, 39 : 39 series, 49 : 49 series
③ Bore number
Bearing bore = bore number 5 (mm)
④ Internal symbol
No symbol : standard type
Z : low heat generation type
⑤ Cage
TB : roller guided PPS resin cage; operational temperature limit = 220°C
MB : roller guided machined brass cage; operational temperature limit = 300°C
⑥ Tapered bore
KR : 1/12 tapered bore
No symbol : cylindrical bore
⑦ Lubrication holes
E44 : outer ring with machined lubrication groove and lubrication holes
No symbol : no lubrication holes
⑧ Radial clearance
CC1 : standard clearance for cylindrical bore(FAG 사양과 동일한 틈새)
CC0 : standard clearance for tapered bore
CCG : special radial clearance
⑨ Accuracy
P2 : ISO Class 2
P4 : ISO Class 4
P4Y : special class
(Bore diameter and outside diameter are exclusive to NSK. All others are ISO Class 4.)
| 30 Series | 
| 외륜폭 (B) | 오일
홀경
dh | 오일
홈폭
W |
| 초과 | 이하 |
| – | 30 | 2.0 | 3.5 |
| 030 | 40 | 2.5 | 5.0 |
| 040 | 50 | 3.0 | 6.0 |
|
Bearing
Numbers |
Boundary Dimensions (mm) | Basic
Load Ratings (kN) | Circumscribed
circle diameter
of roller (mm)
(reference) | Mass
(g) | Limiting Speeds |
| d | D | B | r | Cr
(Dynamic) | C0r
(Static) | Grease | Oil |
| NN3005.MBKR | 25 | 47 | 16 | 0.6 | 25.8 | 30.0 | 41.3 | 0.127 | 20900 | 25000 |
| NN3006.MBKR | 30 | 55 | 19 | 1.0 | 31.0 | 37.0 | 48.5 | 0.198 | 17700 | 21200 |
| NN3006.TBKR | 30 | 55 | 19 | 1.0 | 31.0 | 37.0 | 48.5 | 0.172 | 20000 | 23600 |
| NN3007.MBKR | 35 | 62 | 20 | 1.0 | 39.5 | 50.0 | 55 | 0.258 | 15500 | 18600 |
| NN3007.TBKR | 35 | 62 | 20 | 1.0 | 39.5 | 50.0 | 55 | 0.224 | 17600 | 20700 |
| NN3008.MBKR | 40 | 68 | 21 | 1.0 | 43.5 | 55.5 | 61 | 0.309 | 13900 | 16700 |
| NN3008.TBKR | 40 | 68 | 21 | 1.0 | 43.5 | 55.5 | 61 | 0.283 | 15800 | 18600 |
| NN3009.MBKR | 45 | 75 | 23 | 1.0 | 52.0 | 68.5 | 67.5 | 0.407 | 12500 | 15000 |
| NN3009.TBKR | 45 | 75 | 23 | 1.0 | 50.0 | 65.5 | 67.5 | 0.373 | 14200 | 16700 |
| NN3010.MBKR | 50 | 80 | 23 | 1.0 | 53.0 | 72.5 | 72.5 | 0.436 | 11600 | 13900 |
| NN3010.TBKR | 50 | 80 | 23 | 1.0 | 53.0 | 72.5 | 72.5 | 0.402 | 13100 | 15400 |
| NN3011.MBKR | 55 | 90 | 26 | 1.1 | 69.5 | 96.5 | 81 | 0.647 | 10400 | 12500 |
| NN3011.TBKR | 55 | 90 | 26 | 1.1 | 69.5 | 96.5 | 81 | 0.592 | 11800 | 13800 |
| NN3012.MBKR | 60 | 95 | 26 | 1.1 | 73.5 | 106 | 86.1 | 0.693 | 9700 | 11700 |
| NN3012.TBKR | 60 | 95 | 26 | 1.1 | 73.5 | 106 | 86.1 | 0.635 | 11000 | 13000 |
| NN3013.MBKR | 65 | 100 | 26 | 1.1 | 77.0 | 116 | 91 | 0.741 | 9100 | 11000 |
| NN3013.TBKR | 65 | 100 | 26 | 1.1 | 77.0 | 116 | 91 | 0.681 | 10400 | 12200 |
| 30 Series |
| 외륜 폭 (B) | 오일
홀경
dh | 오일
홀폭
W |
| 초과 | 이하 |
| – | 30 | 2.0 | 3.5 |
| 030 | 40 | 2.5 | 5.0 |
| 040 | 50 | 3.0 | 6.0 |
Bearing
Numbers |
Boundary Dimensions (mm) | Basic
Load Ratings (kN) | Circumscribed
circle diameter
of roller (mm)
(reference) | Mass
(g) | Limiting Speeds |
| d | D | B | r | Cr
(Dynamic) | C0r
(Static) | Grease | Oil |
| NN3014.MBKR | 70 | 110 | 30 | 1.1 | 94.5 | 143 | 100 | 1.060 | 8000 | 10000 |
| NN3014.TBKR | 70 | 110 | 30 | 1.1 | 94.5 | 143 | 100 | 0.988 | 9500 | 11200 |
| NN3015.MBKR | 75 | 115 | 30 | 1.1 | 96.5 | 149 | 105 | 1.110 | 7900 | 9500 |
| NN3015.TBKR | 75 | 115 | 30 | 1.1 | 96.5 | 149 | 105 | 1.030 | 9000 | 10600 |
| NN3016.MBKR | 80 | 125 | 34 | 1.1 | 119 | 186 | 113 | 1.540 | 7400 | 8800 |
| NN3016.TBKR | 80 | 125 | 34 | 1.1 | 119 | 186 | 113 | 1.440 | 8300 | 9800 |
| NN3017.MBKR | 85 | 130 | 34 | 1.1 | 122 | 194 | 118 | 1.630 | 7000 | 8400 |
| NN3017.TBKR | 85 | 130 | 34 | 1.1 | 122 | 194 | 118 | 1.520 | 8000 | 9400 |
| NN3018.MBKR | 90 | 140 | 37 | 1.5 | 143 | 228 | 127 | 2.090 | 6600 | 7900 |
| NN3018.TBKR | 90 | 140 | 37 | 1.5 | 143 | 228 | 127 | 1.930 | 7400 | 8700 |
| NN3019.MBKR | 95 | 145 | 37 | 1.5 | 146 | 238 | 132 | 2.190 | 6300 | 7500 |
| NN3019.TBKR | 95 | 145 | 37 | 1.5 | 146 | 238 | 132 | 2.030 | 7100 | 8400 |
| NN3020.MBKR | 100 | 150 | 37 | 1.5 | 149 | 247 | 137 | 2.280 | 6000 | 7200 |
| NN3020.TBKR | 100 | 150 | 37 | 1.5 | 149 | 247 | 137 | 2.120 | 6800 | 8000 |
| NN3021.MBKR | 105 | 160 | 41 | 2.0 | 192 | 310 | 146 | 2.880 | 5700 | 6800 |
| NN3021.TBKR | 105 | 160 | 41 | 2.0 | 192 | 310 | 146 | 2.690 | 6500 | 7600 |
| NN3022.MBKR | 110 | 170 | 45 | 2.0 | 222 | 360 | 155 | 3.710 | 5400 | 6500 |
| NN3022.TBKR | 110 | 170 | 45 | 2.0 | 222 | 360 | 155 | 3.440 | 6100 | 7200 |
| NN3024.MBKR | 120 | 180 | 46 | 2.0 | 233 | 390 | 165 | 4.040 | 5000 | 6000 |
| NN3024.TBKR | 120 | 180 | 46 | 2.0 | 233 | 390 | 165 | 3.750 | 5700 | 6700 |
| 30 Series |
| 외륜 폭 | 오일
홀경
dh | 오일
홀폭
W |
| 초과 | 이하 |
| – | 30 | 2.0 | 3.5 |
| 030 | 40 | 2.5 | 5.0 |
| 040 | 50 | 3.0 | 6.0 |
| 050 | 60 | 4.0 | 8.0 |
| 060 | 80 | 5.0 | 9.0 |
Bearing
Numbers |
Boundary Dimensions (mm) | Basic
Load Ratings (kN) | Circumscribed
circle diameter
of roller (mm)
(reference) | Mass
(g) | Limiting Speeds |
| d | D | B | r | Cr
(Dynamic) | C0r
(Static) | Grease | Oil |
| NN3026.MBKR | 130 | 200 | 52 | 2.0 | 284 | 475 | 182 | 5.880 | 4600 | 5500 |
| NN3028.MBKR | 140 | 210 | 53 | 2.0 | 298 | 515 | 192 | 6.340 | 4300 | 5200 |
| NN3030.MBKR | 150 | 225 | 56 | 2.1 | 335 | 585 | 206 | 7.760 | 4000 | 4800 |
| NN3032.MBKR | 160 | 240 | 60 | 2.1 | 375 | 660 | 219 | 9.410 | 3800 | 4500 |
| NN3034.MBKR | 170 | 260 | 67 | 2.1 | 450 | 805 | 236 | 12.80 | 3500 | 4200 |
| NN3036.MBKR | 180 | 280 | 74 | 2.1 | 565 | 995 | 255 | 16.80 | 3300 | 4000 |
| NN3038.MBKR | 190 | 290 | 75 | 2.1 | 595 | 1080 | 265 | 17.80 | 3200 | 3800 |
| NN3040.MBKR | 200 | 310 | 82 | 2.1 | 655 | 1170 | 282 | 22.70 | 3000 | 3600 |
| 30 Series |
| 외륜 폭 | 오일
홀경
dh | 오일
홀폭
W |
| 초과 | 이하 |
| – | 30 | 2.0 | 3.5 |
| 030 | 40 | 2.5 | 5.0 |
| 040 | 50 | 3.0 | 6.0 |
| 050 | 60 | 4.0 | 8.0 |
| 060 | 80 | 5.0 | 9.0 |
Bearing
Numbers |
Boundary Dimensions (mm) | Basic
Load Ratings (kN) | Circumscribed
circle diameter
of roller (mm)
(reference) | Mass
(g) | Limiting Speeds |
| d | D | B | r | Cr
(Dynamic) | C0r
(Static) | Grease | Oil |
| NN3920.MBKR | 100 | 140 | 30 | 1.1 | 106 | 182 | 130 | 1.32 | 6300 | 7500 |
| NN3921.MBKR | 105 | 145 | 30 | 1.1 | 110 | 194 | 135 | 1.50 | 6000 | 7200 |
| NN3922.MBKR | 110 | 150 | 30 | 1.1 | 114 | 207 | 140 | 1.41 | 5800 | 7000 |
| NN3924.MBKR | 120 | 165 | 34 | 1.1 | 138 | 251 | 153.5 | 1.99 | 5300 | 6400 |
| NN3926.MBKR | 130 | 180 | 37 | 1.5 | 173 | 325 | 167 | 2.64 | 4900 | 5900 |
| NN3928.MBKR | 140 | 190 | 37 | 1.5 | 201 | 375 | 178 | 2.97 | 4600 | 5500 |
| NN3930.MBKR | 150 | 210 | 45 | 2.0 | 262 | 490 | 195 | 4.47 | 4200 | 5000 |
| NN3932.MBKR | 160 | 220 | 45 | 2.0 | 271 | 520 | 205 | 4.75 | 4000 | 4800 |
| NN3934.MBKR | 170 | 230 | 45 | 2.0 | 280 | 550 | 215 | 5.01 | 3800 | 4500 |
| NN3936.MBKR | 180 | 250 | 52 | 2.0 | 340 | 655 | 232 | 7.76 | 3500 | 4200 |
| NN3938.MBKR | 190 | 260 | 52 | 2.0 | 345 | 680 | 243.5 | 7.46 | 3400 | 4000 |
| NN3940.MBKR | 200 | 280 | 60 | 2.1 | 420 | 815 | 259 | 10.60 | 3200 | 3800 |
| NN3944.MBKR | 220 | 300 | 60 | 2.1 | 440 | 895 | 279 | 11.40 | 2900 | 3500 |
| NN3948.MBKR | 240 | 320 | 60 | 2.1 | 460 | 975 | 300 | 12.10 | 2700 | 3300 |
| NN3952.MBKR | 260 | 360 | 75 | 2.1 | 670 | 1380 | 335 | 21.40 | 2500 | 3000 |
| NN3956.MBKR | 280 | 380 | 75 | 2.1 | 695 | 1460 | 355 | 22.70 | 2300 | 2800 |
| 30 Series |
| 외륜 폭 | 오일
홀경
dh | 오일
홀폭
W |
| 초과 | 이하 |
| 030 | 40 | 2.5 | 5.0 |
| 040 | 50 | 3.0 | 6.0 |
| 050 | 60 | 4.0 | 8.0 |
| 060 | 80 | 5.0 | 9.0 |
|
Bearing
Numbers |
Boundary Dimensions (mm) | Basic
Load Ratings (kN) | Circumscribed
circle diameter
of roller (mm)
(reference) | Mass
(g) | Limiting Speeds |
| d | D | B | r | Cr
(Dynamic) | C0r
(Static) | Grease | Oil |
| NN4920.MBKR | 100 | 140 | 40 | 1.1 | 155 | 295 | 130 | 1.76 | 6300 | 7500 |
| NNU4920.MBKR | 100 | 140 | 40 | 1.1 | 155 | 295 | 112 | 1.90 | 6300 | 7500 |
| NN4921.MBKR | 105 | 145 | 40 | 1.1 | 161 | 315 | 135 | 2.00 | 6000 | 7200 |
| NNU4921.MBKR | 105 | 145 | 40 | 1.1 | 161 | 315 | 117 | 1.99 | 6000 | 7200 |
| NN4922.MBKR | 110 | 150 | 40 | 1.1 | 167 | 335 | 140 | 2.10 | 5800 | 7000 |
| NNU4922.MBKR | 110 | 150 | 40 | 1.1 | 167 | 335 | 122 | 2.07 | 5800 | 7000 |
| NN4924.MBKR | 120 | 165 | 45 | 1.1 | 183 | 360 | 153.5 | 2.87 | 5300 | 6400 |
| NNU4924.MBKR | 120 | 165 | 45 | 1.1 | 183 | 360 | 133.5 | 2.85 | 5300 | 6400 |
| NN4926.MBKR | 130 | 180 | 50 | 1.5 | 274 | 545 | 168 | 3.84 | 4900 | 5900 |
| NNU4926.MBKR | 130 | 180 | 50 | 1.5 | 274 | 545 | 144 | 3.85 | 4900 | 5900 |
| NN4928.MBKR | 140 | 190 | 50 | 1.5 | 283 | 585 | 178 | 4.07 | 4600 | 5500 |
| NNU4928.MBKR | 140 | 190 | 50 | 1.5 | 283 | 585 | 154 | 4.08 | 4600 | 5500 |
| NN4930.MBKR | 150 | 210 | 60 | 2.0 | 350 | 715 | 195 | 6.36 | 4200 | 5000 |
| NNU4930.MBKR | 150 | 210 | 60 | 2.0 | 350 | 715 | 167 | 6.39 | 4200 | 5000 |
| NN4932.MBKR | 160 | 220 | 60 | 2.0 | 365 | 760 | 205 | 6.77 | 4000 | 4800 |
| NNU4932.MBKR | 160 | 220 | 60 | 2.0 | 365 | 760 | 177 | 6.76 | 4000 | 4800 |
| 30 Series |
| 외륜 폭 | 오일
홀경
dh | 오일
홈폭
W |
| 초과 | 이하 |
| 030 | 40 | 2.5 | 5.0 |
| 040 | 50 | 3.0 | 6.0 |
| 050 | 60 | 4.0 | 8.0 |
| 060 | 80 | 5.0 | 9.0 |
|
Bearing
Numbers |
Boundary Dimensions (mm) | Basic
Load Ratings (kN) | Circumscribed
circle diameter
of roller (mm)
(reference) | Mass
(g) | Limiting Speeds |
| d | D | B | r | Cr
(Dynamic) | C0r
(Static) | Grease | Oil |
| NN4934.MBKR | 170 | 230 | 60 | 2.0 | 375 | 805 | 215 | 7.13 | 3800 | 4500 |
| NNU4934.MBKR | 170 | 230 | 60 | 2.0 | 375 | 805 | 187 | 7.12 | 3800 | 4500 |
| NN4936.MBKR | 180 | 250 | 69 | 2.0 | 480 | 1020 | 232 | 10.40 | 3500 | 4200 |
| NNU4936.MBKR | 180 | 250 | 69 | 2.0 | 480 | 1020 | 200 | 10.40 | 3500 | 4200 |
| NN4938.MBKR | 190 | 260 | 69 | 2.0 | 485 | 1060 | 243.5 | 10.90 | 3400 | 4000 |
| NNU4938.MBKR | 190 | 260 | 69 | 2.0 | 485 | 1060 | 211.5 | 10.90 | 3400 | 4000 |
| NN4940.MBKR | 200 | 280 | 80 | 2.1 | 570 | 1220 | 259 | 15.30 | 3200 | 3800 |
| NNU4940.MBKR | 200 | 280 | 80 | 2.1 | 570 | 1220 | 223 | 15.30 | 3200 | 3800 |
| 30 Series |
Bearing
Numbers | TOMICS
Numbers |
| 22060190 | NN3006.MB.E44.CC1.P4 |
| 22060191 | NN3006.MBKR.E44.CC1.P4 |
| 22060192 | NN3007.MB.E44.CC1.P4 |
| 22060193 | NN3007.MBKR.E44.CC1.P4 |
| 22060194 | NN3008.MBKR.E44.CC1.P4 |
| 22060195 | NN3008.MB.E44.CC1.P4 |
| 22060196 | NN3009.MBKR.E44.CC1.P4 |
| 22060197 | NN3010.MB.E44.CC1.P4 |
| 22060198 | NN3010.MBKR.E44.CC1.P4 |
| 22060199 | NN3011.MBKR.E44.CC1.P4 |
| 22060200 | NN3011.MB.E44.CC1.P4 |
| 22060201 | NN3012.MB.E44.CC1.P4 |
| 22060202 | NN3012.MBKR.E44.CC1.P4 |
| 22060203 | NN3013.MB.E44.CC1.P4 |
| 22060204 | NN3013.MBKR.E44.CC1.P4 |
| 22060205 | NN3014.MBKR.E44.CC1.P4 |
| 22060206 | NN3015.MB.E44.CC1.P4 |
| 22060207 | NN3015.MBKR.E44.CC1.P4 |
| 22060208 | NN3016.MBKR.E44.CC1.P4 |
| 22060209 | NN3016.MB.E44.CC1.P4 |
Bearing
Numbers | TOMICS
Numbers |
| 22060210 | NN3017.MBKR.E44.CC1.P4 |
| 22060211 | NN3017.MB.E44.CC1.P4 |
| 22060212 | NN3018.MB.E44.CC1.P4 |
| 22060213 | NN3018.MBKR.E44.CC1.P4 |
| 22060214 | NN3019.MB.E44.CC1.P4 |
| 22060215 | NN3019.MBKR.E44.CC1.P4 |
| 22060216 | NN3020.MBKR.E44.CC1.P4 |
| 22060217 | NN3020.MB.E44.CC1.P4 |
| 22060218 | NN3021.MBKR.E44.CC1.P4 |
| 22060219 | NN3022.MBKR.E44.CC1.P4 |
| 22060220 | NN3024.MBKR.E44.CC1.P4 |
| 22060221 | NN3026.MBKR.E44.CC1.P4 |
| 22060222 | NN3028.MBKR.E44.CC1.P4 |
| 22060223 | NN3030.MBKR.E44.CC1.P4 |
| 22060224 | NN3032.MBKR.E44.CC1.P4 |
| 22060225 | NN3036.MBKR.E44.CC1.P4 |
| 22060226 | NN3040.MBKR.E44.CC1.P4 |
| - | - |
| - | - |
| - | - |
| | | |