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Needle roller bearings are similar to cylindrical rollers in structure but the diameter of needle rollers is small relative to its length. The flat ends of needle rollers are designed to maintain the line contact between the needle rollers and the raceways. Due to the low cross section area of needle rollers, it holds a high load carrying capacity. Needle rollers are used in many applications of limited radial space. We design and manufacture needle rollers in various sizes and series according to our customer requirements and DIN 5402. Our perfect needle rollers are appropriate for a wide scale of operating conditions and applications. Needle roller bearings have its major role in automobile industry as vehicle components which are as rocker arm pivots, compressors, pumps and transmissions. We design the best needle roller bearing with various specifications and requirements of our precious clients for its several applications in different types of machines with the help of our design engineering department and expert team.
| Parameter |
| ||||||
| O.D Size | + 40 µm | + 50 µm | + 60 µm |
| O.D. Taper | Within Dia Tolerance | - | - |
| Out of Roundness | 30 µm max | 35 µm max | 40 µm max |
| Concavity of Convexity On O.D | |||
| Up to 25.00 mm length | 30 µm max. | ||
| 25.00 to 50.00 mm length | 50 µm max. | ||
| On Face | 50 µm | 80 µm | 100 µm |
| Concentricity of Radii to O.D. | 80 µm | 100 µm | 125 µm |
| Squareness | 50 µm | 65 µm | 80 µm |
| Corner radius & Corner Distance | + 150 µm | + 150 µm | + 150 µm |
| Length | + 50 µm | + 60 µm | + 70 µm |
| Hardness | + 1 HRC | + 1 HRC | + 1 HRC |
| Parameter |
|
|
| ||||||||||||
| 1. Dimensional | ||||||
| O.D. Size | +5.00 µm **- 10.00 µm | +5.00 µm **- 10.00 µm | +5.00 µm - 10.00 µm | +5.00 µm - 10.00 µm | +10.00 µm - 20.00 µm | +5.00 µm - 10.00 µm |
| O.D. Grouping | 10 µ m | 3 µm | 6 µ m | 2 µ m | 20 µ m | 3 µ m |
| O.D. Taper | + 6 µ m ** | + 3 µ m ** | 1.5 µ m | 1.0 µ m | 20 µ m | 10 µ m |
| Length | ||||||
| Upto 15 mm length | + 100 µ m | + 100 µ m | + 25 µ m | + 15 µ m | + 20 µ m | + 15 µ m |
| 15 to 50 mm length | + 125 µ m | + 125 µ m | + 25 µ m | + 20 µ m | + 25 µ m | + 20 µ m |
| O.D. Radius | - N/A - | - N/A - | - N/A - | - N/A - | + 0.50 mm | + 0.25 mm |
| 2. Form & Geometrical Accuracies | ||||||
| O.D. Crowning | - N/A - | As Required | - N/A - | As Required | - N/A - | - N/A - |
| Ovality (2 pt.) | 2.00 µm | 1.00 µm | 2.00 µm | 1.00 µm | 3.00 µm | 2.00 µm |
| Roundness | ||||||
| 1 : 500 | 2.50 µm | 1.00 µm | 2.50 µm | 1.00 µm | 4.00 µm | 2.50 µm |
| 15 : 500 | 1.50 µm | 0.60 µm | 2.00 µm | 0.50 µm | 3.00 µm | 2.00 µm |
| Squareness | ||||||
| Upto 15 mm length | 8.00 µm | 5.00 µm | 8.00 µm | 5.00 µm | 15.00 m | 10.00 m |
| 15 to 50 mm length | 10.00 µm | 6.00 µm | 10.00 µm | 6.00 µm | 20.00 µm | 15.00 µm |
| Ra on O.D. | ||||||
| Upto 10 mm dia. | 0.14 µm | 0.08 µm | 0.14 µm | 0.08 µm | 0.30 µm | 0.15 µm |
| 10 to 18 mm dia. | 0.18 µm | 0.10 µm | 0.18 µm | 0.12 µm | 0.40 µm | 0.20 µm |
| Ra. on Face | 0.30 µm | 0.20 µm | 0.30 µm | 0.20 µm | 0.30 µm | 0.30 µm |
| Face Parallelism | - N/A - | - N/A - | 10.00 µm | 5.00 µm | 10.00 µm | 5.00 µm |
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Basni, Jodhpur, Rajasthan 
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