| 国内新型号 | 国内旧型号 | 内径(mm) | 外径(mm) | 宽度(mm) | 轴承型号 | 轴承类型 | 轴承品牌 |
|---|---|---|---|---|---|---|---|
| NNU4944/W33 | 4382944K | 220 | 300 | 80 | NNU4944B/W33 | 圆柱滚子轴承2类 | S |
| NNU4944/W33 | 4382944K | 220 | 300 | 80 | NNU4944S·M | 圆柱滚子轴承2类 | FAG |
| NNU4944EA | 4482944HEK | 220 | 300 | 80 | NNU4944EA | 圆柱滚子轴承2类 | IKO |
| NNU4944EA | 4482944HEK | 220 | 300 | 80 | NNU4944EA | 圆柱滚子轴承2类 | IKO |
| NNU4944EA | 4482944HEK | 220 | 300 | 80 | NNU4944EA | 圆柱滚子轴承2类 | INA |
| NNU4944EA | 4482944HEK | 220 | 300 | 80 | NNU4944EA | 圆柱滚子轴承2类 | INA |
| NNU4944K | 4382944 | 220 | 300 | 80 | NNU4944K | 圆柱滚子轴承2类 | KOYO |
| NNU4944K | 4382944 | 220 | 300 | 80 | NNU4944K | 圆柱滚子轴承2类 | NSK |
| NNU4944K | 4382944 | 220 | 300 | 80 | NNU4944K | 圆柱滚子轴承2类 | NACHI |
| NNU4944K | 4382944 | 220 | 300 | 80 | NNU4944K | 圆柱滚子轴承2类 | NTN |
| NNU4944K/W33 | 4382944K | 220 | 300 | 80 | NNU4944BK/W33 | 圆柱滚子轴承2类 | S |
| NNU4944K/W33 | 4382944K | 220 | 300 | 80 | NNU4944BK/W33 | 圆柱滚子轴承2类 | FAG |
| NNU4948 | 4482948 | 240 | 320 | 80 | NNU4948 | 圆柱滚子轴承2类 | NTN |
| NNU4948 | 4482948 | 240 | 320 | 80 | NNU4948 | 圆柱滚子轴承2类 | KOYO |
| NNU4948 | 4482948 | 240 | 320 | 80 | NNU4948 | 圆柱滚子轴承2类 | NSK |
| NNU4948 | 4482948 | 240 | 320 | 80 | NNU4948 | 圆柱滚子轴承2类 | NACHI |
| NNU4948/W33 | 4382948K | 240 | 320 | 80 | NNU4948S·M | 圆柱滚子轴承2类 | FAG |
| NNU4948/W33 | 4382948K | 240 | 320 | 80 | NNU4948B/W33 | 圆柱滚子轴承2类 | S |
| NNU4948EA | 4481948HEK | 240 | 320 | 80 | NNU4948EA | 圆柱滚子轴承2类 | IKO |
| NNU4948EA | 4481948HEK | 240 | 320 | 80 | NNU4948EA | 圆柱滚子轴承2类 | INA |
| NNU4948EA | 4481948HEK | 240 | 320 | 80 | NNU4948EA | 圆柱滚子轴承2类 | INA |
| NNU4948K | 4382948 | 240 | 320 | 80 | NNU4948K | 圆柱滚子轴承2类 | KOYO |
| NNU4948K | 4382948 | 240 | 320 | 80 | NNU4948K | 圆柱滚子轴承2类 | NTN |
| NNU4948K | 4382948 | 240 | 320 | 80 | NNU4948K | 圆柱滚子轴承2类 | NSK |
| NNU4948K | 4382948 | 240 | 320 | 80 | NNU4948K | 圆柱滚子轴承2类 | NACHI |
| NNU4948K/W33 | 4382948K | 240 | 320 | 80 | NNU4948BK/W33 | 圆柱滚子轴承2类 | FAG |
| NNU4948K/W33 | 4382948K | 240 | 320 | 80 | NNU4948BK/W33 | 圆柱滚子轴承2类 | S |
| NNU4952 | 4482952 | 260 | 360 | 100 | NNU4952 | 圆柱滚子轴承2类 | NACHI |
| NNU4952 | 4482952 | 260 | 360 | 100 | NNU4952 | 圆柱滚子轴承2类 | NTN |
| NNU4952 | 4482952 | 260 | 360 | 100 | NNU4952 | 圆柱滚子轴承2类 | KOYO |