Features:
Cylindrical roller bearing make a perfect match for use in machine tool spindles. Especially single row and double row cylindrical roller bearings either have a cylindrical bore or a tapered bore.Double row cylindrical roller bearings with tapered bore are often mounted to the main shaft as a fix end bearing .Simplicity in design and the ability to adjust radial internal clearance after mounting continue to make these bearings popular amoung machine tool users.
1. Optimized internal design allows high speed operation and limits temperature increase.
2. Special resin cage is suitable for high-speed operation.
■ Double row cylindrical roller bearings:
MB: Roller guided machined brass cage ;operational temperature limit =300 degrees
MR: Roller guided machined brass cage
TB:Roller guided PPS resin cage;operational temperature limit =220 degrees
NN:Double row cylindrical roller bearing with triple-ribbed inner ring.
NNU: Double row cylindrical roller bearing with triple-ribbed Outer ring.
N: Single row cylindrical roller bearing with double-ribbed inner ring.
CC1 :standard clearance for cylindrical bore
CC0 :standard clearance for tapered bore
CCG:Special radial clearance
■ High precision single row cylindrical roller bearings :
High precision single roe cylindrical roller bearings same as its double row types, normally used on main spindle machines. Single row cylindrical roller bearing type ,its structure normally come with N series,such as N10HSR .This type bearing can reliably run at a higher speed with grease lubrication. The grease lubrication system greatly contributes to reduction in pollution of the surrounding environments by virtually eliminating oil mist.
Parameter:
| d | D | B | Cylindrical bore | Tapered bore | Weight (kg) | Grade |
|---|---|---|---|---|---|---|
| 25 | 47 | 16 | NN3005 | NN2005K | 0.127 | P5 P4 |
| 30 | 55 | 19 | NN3006 | NN3006K | 0.198 | P5 P4 |
| 35 | 62 | 20 | NN3007 | NN3007K | 0.258 | P5 P4 |
| 40 | 68 | 21 | NN3008 | NN3008K | 0.309 | P5 P4 |
| 45 | 75 | 23 | NN3009 | NN3009K | 0.407 | P5 P4 |
| 50 | 80 | 23 | NN3010 | NN3010K | 0.436 | P5 P4 |
| 55 | 90 | 26 | NN3011 | NN3011K | 0.647 | P5 P4 |
| 60 | 95 | 26 | NN3012 | NN3012K | 0.693 | P5 P4 |
| 65 | 100 | 26 | NN3013 | NN3013K | 0.741 | P5 P4 |
| 70 | 110 | 30 | NN3014 | NN3014K | 1.06 | P5 P4 |
| 75 | 115 | 30 | NN3015 | NN3015K | 1.11 | P5 P4 |
| 80 | 125 | 34 | NN3016 | NN3016K | 1.54 | P5 P4 |
| 85 | 130 | 34 | NN3017 | NN3017K | 1.63 | P5 P4 |
| 90 | 140 | 37 | NN3018 | NN3018K | 2.09 | P5 P4 |
| 95 | 145 | 37 | NN3019 | NN3019K | 2.19 | P5 P4 |
| 100 | 140 | 40 | NNU4920 | NNU4920K | 1.9 | P5 P4 |
| 100 | 150 | 37 | NN3020 | NN3020K | 2.28 | P5 P4 |
| 105 | 145 | 40 | NNU4921 | NNU4921K | 1.99 | P5 P4 |
| 105 | 160 | 41 | NN3021 | NN3021K | 2.88 | P5 P4 |
| 110 | 150 | 40 | NNU4922 | NNU4922K | 2.07 | P5 P4 |
| 110 | 170 | 45 | NN3022 | NN3022K | 3.71 | P5 P4 |
| 120 | 165 | 45 | NNU4924 | NNU4924K | 2.85 | P5 P4 |
| 120 | 180 | 46 | NN3024 | NN3024K | 4.04 | P5 P4 |
| 130 | 180 | 50 | NNU4926 | NNU4926K | 3.85 | P5 P4 |
| 130 | 200 | 52 | NN3026 | NN3026K | 5.88 | P5 P4 |
| 140 | 190 | 50 | NNU4928 | NNU4928K | 4.08 | P5 P4 |
| 140 | 210 | 53 | NN3028 | NN3028K | 6.34 | P5 P4 |
| d | D | B | Cylindrical bore | Tapered bore | Weight (kg) | Grade |
|---|---|---|---|---|---|---|
| 25 | 47 | 16 | NN3005 | NN2005K | 0.127 | P5 P4 |
| 30 | 55 | 19 | NN3006 | NN3006K | 0.198 | P5 P4 |
| 35 | 62 | 20 | NN3007 | NN3007K | 0.258 | P5 P4 |
| 40 | 68 | 21 | NN3008 | NN3008K | 0.309 | P5 P4 |
| 45 | 75 | 23 | NN3009 | NN3009K | 0.407 | P5 P4 |
| 50 | 80 | 23 | NN3010 | NN3010K | 0.436 | P5 P4 |
| 55 | 90 | 26 | NN3011 | NN3011K | 0.647 | P5 P4 |
| 60 | 95 | 26 | NN3012 | NN3012K | 0.693 | P5 P4 |
| 65 | 100 | 26 | NN3013 | NN3013K | 0.741 | P5 P4 |
| 70 | 110 | 30 | NN3014 | NN3014K | 1.06 | P5 P4 |
| 75 | 115 | 30 | NN3015 | NN3015K | 1.11 | P5 P4 |
| 80 | 125 | 34 | NN3016 | NN3016K | 1.54 | P5 P4 |
| 85 | 130 | 34 | NN3017 | NN3017K | 1.63 | P5 P4 |
| 90 | 140 | 37 | NN3018 | NN3018K | 2.09 | P5 P4 |
| 95 | 145 | 37 | NN3019 | NN3019K | 2.19 | P5 P4 |
| 100 | 140 | 40 | NNU4920 | NNU4920K | 1.9 | P5 P4 |
| 100 | 150 | 37 | NN3020 | NN3020K | 2.28 | P5 P4 |
| 105 | 145 | 40 | NNU4921 | NNU4921K | 1.99 | P5 P4 |
| 105 | 160 | 41 | NN3021 | NN3021K | 2.88 | P5 P4 |
| 110 | 150 | 40 | NNU4922 | NNU4922K | 2.07 | P5 P4 |
| 110 | 170 | 45 | NN3022 | NN3022K | 3.71 | P5 P4 |
| 120 | 165 | 45 | NNU4924 | NNU4924K | 2.85 | P5 P4 |
| 120 | 180 | 46 | NN3024 | NN3024K | 4.04 | P5 P4 |
| 130 | 180 | 50 | NNU4926 | NNU4926K | 3.85 | P5 P4 |
| 130 | 200 | 52 | NN3026 | NN3026K | 5.88 | P5 P4 |
| 140 | 190 | 50 | NNU4928 | NNU4928K | 4.08 | P5 P4 |
| 140 | 210 | 53 | NN3028 | NN3028K | 6.34 | P5 P4 |