Category: Cylindrical Roller Bearing Double Row
Also know as: NNU4938-S-M-SP
Inner (d) MM: 190
Outer (D) MM: 260
Width (B) MM: 69
Weight (kg): 11.70
M: Brass Cage
S(W33-SKF): Lubrication Groove And Three Holes In Bearing Outer Ring
SP: Special Precision Class For Machine Tool Bearings
About BHR Bearing ( Shenzhen Qinggong Bearing Co, Ltd.)
Shenzhen Qinggong Bearing Co., Ltd. （www.bhrbearing.cn）is a well-know bearing manufacturer in China since the year 1996 with its own factory. Despite our own BHR bearings, we also distribute kinds of famous branded bearings from worldwide manufacturers SKF, FAG, NSK, KOYO, NTN, NACHI, ASAHI, TOYOTA......and OEM can also be supplied.
We Shenzhen Qinggong Bearing Co., Ltd. is focused and committed to deliver our customers high quality products and solutions because they are at the core of everything we do. With variety of bearings, competitive prices, fast delivery and good after-sale service, hope we will get a chance to talk bearings together.
SKF Cylindrical roller bearings, double row, super-precision catalogue:
| Designation | Principal dimensions | Basic load ratings | Fatigue load limit | Attainable speeds |
|
|
| dynamic | static |
| Grease lubrication | Oil-air lubrication |
| d | D | B | C | C0 | Pu |
|
|
| mm | kN | kN | r/min |
| NNU 4920 B/SPW33 | 100 | 140 | 40 | 128 | 255 | 29 | 5600 | 6300 |
| NN 3020 TN9/SP | 100 | 150 | 37 | 151 | 250 | 29 | 5600 | 6300 |
| NNU 4920 BK/SPW33 | 100 | 140 | 40 | 128 | 255 | 29 | 5600 | 6300 |
| NN 3021 TN9/SP | 105 | 160 | 41 | 190 | 305 | 36 | 5300 | 6000 |
| NNU 4921 B/SPW33 | 105 | 145 | 40 | 130 | 260 | 30 | 5300 | 6000 |
| NNU 4921 BK/SPW33 | 105 | 145 | 40 | 130 | 260 | 30 | 5300 | 6000 |
| NN 3021 KTN9/SP | 105 | 160 | 41 | 190 | 305 | 36 | 5300 | 6000 |
| NNU 4922 B/SPW33 | 110 | 150 | 40 | 132 | 270 | 30 | 5300 | 6000 |
| NN 3022 KTN9/SP | 110 | 170 | 45 | 220 | 360 | 41.5 | 5000 | 5600 |
| NNU 4922 BK/SPW33 | 110 | 150 | 40 | 132 | 270 | 30 | 5300 | 6000 |
| NN 3022 TN9/SP | 110 | 170 | 45 | 220 | 360 | 41.5 | 5000 | 5600 |
