Heavy Duty Needle Bearings - Precision Engineering for Maximum Performance
Welcome to the world of **High-Quality Heavy Duty Needle Bearings**. Our bearings are designed for the most demanding applications, ensuring longevity and reliability.
# Unmatched Quality and Durability
Our **Machined Race Needle Bearings** are built to withstand high loads and tough environments. Sealed for protection, they guarantee optimal performance under any condition.
## Customized Solutions
We understand that every application is unique. That's why we offer **Customized Services** to meet your specific needs. Contact us for tailor-made needle bearings that fit your precise requirements.
### Features
- **Robust Design:** Engineered for heavy-duty use.
- **Machined Race:** Precision-crafted for higher load capacity.
- **Sealed Bearings:** Long-lasting performance with minimal maintenance.
## Applications
Our needle bearings are ideal for:
- Industrial Machinery
- Automotive Applications
- Aerospace Engineering
- And more...
# Take the Next Step
Ready to enhance your machinery's performance with our needle bearings?
- **Request a Quote:** [Click Here]
- **Learn More:** [All Series Heavy Duty Needle Bearings]
Machined Race Needle Roller Bearing Caged, Sealed on Both Sides Specifications:
Bearing Code | Inner Ring | B | D | W | W1 | H | R | ||
+.0000 | Tol. | +.0000 | Tol. | +.000 -0.005 | +.000 -0.005 | hole dia. | Max. | ||
MR 10 SS | MI 6 | .3750 | -.0004 | 1.1250 | -.0005 | 1.000 | 1.010 | 5/64 | .025 |
MR 12 SS | MI 8 | .5000 | -.0004 | 1.2500 | -.0005 | 1.000 | 1.010 | 5/64 | .040 |
MR 14 SS | MI 10 | .6250 | -.0004 | 1.3750 | -.0005 | 1.000 | 1.010 | 5/64 | .040 |
MR 16 SS | MI 12 | .7500 | -.0005 | 1.5000 | -.0005 | 1.000 | 1.010 | 5/64 | .040 |
MI 13 | .8125 | -.0005 | 1.5000 | -.0005 | 1.000 | 1.010 | 5/64 | .040 | |
MR 18 SS | MI 14 | .8750 | -.0005 | 1.6250 | -.0005 | 1.250 | 1.260 | 3/32 | .040 |
MI 15 | .9375 | -.0005 | 1.6250 | -.0005 | 1.250 | 1.260 | 3/32 | .040 | |
MR 20 SS | MI 16 | 1.0000 | -.0005 | 1.7500 | -.0005 | 1.250 | 1.260 | 3/32 | .040 |
MR 22 SS | MI 17 | 1.0625 | -.0005 | 1.8750 | -.0005 | 1.250 | 1.260 | 3/32 | .040 |
MI 18 | 1.1250 | -.0005 | 1.8750 | -.0005 | 1.250 | 1.260 | 3/32 | .040 | |
MR 24 SS | MI 19 | 1.1875 | -.0005 | 2.0625 | -.0006 | 1.250 | 1.260 | 3/32 | .060 |
MI 20 | 1.2500 | -.0005 | 2.0625 | -.0006 | 1.250 | 1.260 | 3/32 | .060 | |
MR 26 SS | MI 21 | 1.3125 | -.0005 | 2.1875 | -.0006 | 1.250 | 1.260 | 3/32 | .060 |
MI 22 4S | 1.3750 | -.0005 | 2.1875 | -.0006 | 1.250 | 1.260 | 3/32 | .060 | |
MR 28 SS | MI 22 | 1.3750 | -.0005 | 2.3125 | -.0006 | 1.250 | 1.260 | 3/32 | .060 |
MI 23 | 1.4375 | -.0005 | 2.3125 | -.0006 | 1.250 | 1.260 | 3/32 | .060 | |
MI 24 | 1.5000 | -.0005 | 2.3125 | -.0006 | 1.250 | 1.260 | 3/32 | .060 | |
MR 30 SS | MI 25 4S | 1.5625 | -.0005 | 2.4375 | -.0006 | 1.250 | 1.260 | 3/32 | .060 |
MR 32 SS | MI 25 | 1.5625 | -.0005 | 2.5625 | -.0006 | 1.250 | 1.260 | 3/32 | .060 |
MI 26 | 1.6250 | -.0005 | 2.5625 | -.0006 | 1.250 | 1.260 | 3/32 | .060 | |
MI 27 | 1.6875 | -.0005 | 2.5625 | -.0006 | 1.250 | 1.260 | 3/32 | .060 | |
MR 36 SS | MI 28 | 1.7500 | -.0005 | 3.0000 | -.0006 | 1.750 | 1.760 | 1/8 | .060 |
MI 30 | 1.8750 | -.0005 | 3.0000 | -.0006 | 1.750 | 1.760 | 1/8 | .060 | |
MR 40 SS | MI 31 | 1.9375 | -.0005 | 3.2500 | -.0006 | 1.750 | 1.760 | 1/8 | .080 |
MI 32 | 2.0000 | -.0005 | 3.2500 | -.0006 | 1.750 | 1.760 | 1/8 | .080 | |
MI 34 | 2.1250 | -.0005 | 3.2500 | -.0006 | 1.750 | 1.760 | 1/8 | .080 | |
MR 44 SS | MI 35 | 2.1875 | -.0006 | 3.5000 | -.0080 | 1.750 | 1.760 | 1/8 | .080 |
MI 36 | 2.2500 | -.0006 | 3.5000 | -.0080 | 1.750 | 1.760 | 1/8 | .080 | |
MR 48 SS | MI 38 | 2.3750 | -.0006 | 3.7500 | -.0080 | 1.750 | 1.760 | 1/8 | .080 |
MI 39 | 2.4375 | -.0006 | 3.7500 | -.0080 | 1.750 | 1.760 | 1/8 | .080 | |
MI 40 | 2.5000 | -.0006 | 3.7500 | -.0080 | 1.750 | 1.760 | 1/8 | .080 | |
MR 52 SS | MI 42 | 2.6250 | -.0006 | 4.2500 | -.0080 | 1.750 | 1.760 | 3/16 | .080 |
MI 44 | 2.7500 | -.0006 | 4.2500 | -.0080 | 1.750 | 1.760 | 3/16 | .080 | |
MR 56 SS | MI 46 | 2.8750 | -.0006 | 4.5000 | -.0080 | 2.000 | 2.010 | 3/16 | .080 |
MI 47 | 2.9375 | -.0006 | 4.5000 | -.0080 | 2.000 | 2.010 | 3/16 | .080 | |
MI 48 | 3.0000 | -.0006 | 4.5000 | -.0080 | 2.000 | 2.010 | 3/16 | .080 | |
MR 60 SS | MI 50 | 3.1250 | -.0006 | 4.7500 | -.0080 | 2.000 | 2.010 | 3/16 | .100 |
MI 52 | 3.2500 | -.0006 | 4.7500 | -.0080 | 2.000 | 2.010 | 3/16 | .100 | |
MR 64 SS | MI 54 | 3.3750 | -.0080 | 5.0000 | -.0010 | 2.000 | 2.010 | 3/16 | .100 |
MI 56 | 3.5000 | -.0080 | 5.0000 | -.0010 | 2.000 | 2.010 | 3/16 | .100 | |
MR 68 SS | MI 58 | 3.6250 | -.0080 | 5.2500 | -.0010 | 2.000 | 2.010 | 3/16 | .100 |
MI 60 | 3.7500 | -.0080 | 5.2500 | -.0010 | 2.000 | 2.010 | 3/16 | .100 |
Bearing Code | INNER RING | SHAFT DIA. | Basic Load Rating | ||||
ROTAT. SHAFT | Tol. | STAT SHAFT | Tol. | STA. (lbs) | DYN. (lbs) | ||
MR 10 SS | MI 6 | .3755 | -.0005 | .3747 | -.0005 | 4300 | 4320 |
MR 12 SS | MI 8 | .5005 | -.0005 | .4997 | -.0005 | 5400 | 4990 |
MR 14 SS | MI 10 | .6255 | -.0005 | .6247 | -.0005 | 6000 | 5280 |
MR 16 SS | MI 12 | .7505 | -.0005 | .7490 | -.0005 | 7100 | 5840 |
MI 13 | .8129 | -.0005 | .8121 | -.0005 | 7100 | 5840 | |
MR 18 SS | MI 14 | .8754 | -.0005 | .8746 | -.0005 | 12200 | 8720 |
MI 15 | .9379 | -.0005 | .9371 | -.0005 | 12200 | 8720 | |
MR 20 SS | MI 16 | 1.0004 | -.0005 | .9996 | -.0005 | 13100 | 9020 |
MR 22 SS | MI 17 | 1.0630 | -.0005 | 1.0621 | -.0005 | 14700 | 9640 |
MI 18 | 1.1255 | -.0005 | 1.1246 | -.0005 | 14700 | 9640 | |
MR 24 SS | MI 19 | 1.1880 | -.0005 | 1.1871 | -.0005 | 15500 | 10300 |
MI 20 | 1.2505 | -.0005 | 1.2496 | -.0005 | 15500 | 10300 | |
MR 26 SS | MI 21 | 1.3130 | -.0005 | 1.3121 | -.0005 | 16400 | 10600 |
MI 22 4S | 1.3755 | -.0005 | 1.3746 | -.0005 | 16400 | 10600 | |
MR 28 SS | MI 22 | 1.3755 | -.0005 | 1.3746 | -.0005 | 18100 | 11200 |
MI 23 | 1.4380 | -.0005 | 1.4371 | -.0005 | 18100 | 11200 | |
MI 24 | 1.5005 | -.0005 | 1.4996 | -.0005 | 18100 | 11200 | |
MR 30 SS | MI 25 4S | 1.5630 | -.0005 | 1.5621 | -.0005 | 19000 | 11400 |
MR 32 SS | MI 25 | 1.5630 | -.0005 | 1.5621 | -.0005 | 20700 | 12000 |
MI 26 | 1.6255 | -.0005 | 1.6246 | -.0005 | 20700 | 12000 | |
MI 27 | 1.6880 | -.0005 | 1.6871 | -.0005 | 20700 | 12000 | |
MR 36 SS | MI 28 | 1.7505 | -.0005 | 1.7496 | -.0005 | 39100 | 22400 |
MI 30 | 1.8755 | -.0005 | 1.8746 | -.0005 | 39100 | 22400 | |
MR 40 SS | MI 31 | 1.9380 | -.0005 | 1.9371 | -.0005 | 42900 | 23400 |
MI 32 | 2.0005 | -.0005 | 1.9996 | -.0005 | 42900 | 23400 | |
MI 34 | 2.1258 | -.0005 | 2.1247 | -.0005 | 42900 | 23400 | |
MR 44 SS | MI 35 | 2.1883 | -.0080 | 2.1872 | -.0080 | 46700 | 24500 |
MI 36 | 2.2508 | -.0080 | 2.2497 | -.0080 | 46700 | 24500 | |
MR 48 SS | MI 38 | 2.3758 | -.0080 | 2.3747 | -.0080 | 52300 | 26100 |
MI 39 | 2.4383 | -.0080 | 2.4372 | -.0080 | 52300 | 26100 | |
MI 40 | 2.5008 | -.0080 | 2.4997 | -.0080 | 52300 | 26100 | |
MR 52 SS | MI 42 | 2.6258 | -.0080 | 2.6247 | -.0080 | 54300 | 25100 |
MI 44 | 2.7508 | -.0080 | 2.7497 | -.0080 | 54300 | 25100 | |
MR 56 SS | MI 46 | 2.8758 | -.0080 | 2.8747 | -.0080 | 71600 | 31300 |
MI 47 | 2.9383 | -.0080 | 2.9372 | -.0080 | 71600 | 31300 | |
MI 48 | 3.0008 | -.0080 | 2.9997 | -.0080 | 71600 | 31300 | |
MR 60 SS | MI 50 | 3.1260 | -.0080 | 3.1246 | -.0080 | 74700 | 31600 |
MI 52 | 3.2510 | -.0080 | 3.2496 | -.0080 | 74700 | 31600 | |
MR 64 SS | MI 54 | 3.3758 | -.0010 | 3.3746 | -.0010 | 80400 | 32800 |
MI 56 | 3.5008 | -.0010 | 3.4996 | -.0010 | 80400 | 32800 | |
MR 68 SS | MI 58 | 3.6258 | -.0010 | 3.6246 | -.0010 | 86200 | 34000 |
MI 60 | 3.7508 | -.0010 | 3.7496 | -.0010 | 86200 | 34000 |