Wuxi Guangqiang Bearing Trade Co.,Ltd
| Payment Terms | T/T, Western Union, Paypal |
| Delivery Time | Within 3 working days |
| Packaging Details | Standard Carton Box / Wooden Pallet Case. |
| Type: | Needle, roller |
| Brand Name: | NACHI |
| Bore Size: | 17 mm |
| Outside Diameter: | 30 mm |
| Model Number: | NA4903 |
| Precision Rating: | P0 P6 P5 P4 P2 |
| Seals Type: | OPEN/ZZ/2RS |
| Clearance: | C0,C2,C3,C4,C5 |
| Weight: | 0.047-0.086KG |
| Brand Name | Optional |
| Model Number | NA4903 |
| Certification | ISO9000/ISO14001/QS9000/TS16949 |
| Place of Origin | Japan |
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Product Specification
| Payment Terms | T/T, Western Union, Paypal | Delivery Time | Within 3 working days |
| Packaging Details | Standard Carton Box / Wooden Pallet Case. | Type: | Needle, roller |
| Brand Name: | NACHI | Bore Size: | 17 mm |
| Outside Diameter: | 30 mm | Model Number: | NA4903 |
| Precision Rating: | P0 P6 P5 P4 P2 | Seals Type: | OPEN/ZZ/2RS |
| Clearance: | C0,C2,C3,C4,C5 | Weight: | 0.047-0.086KG |
| Brand Name | Optional | Model Number | NA4903 |
| Certification | ISO9000/ISO14001/QS9000/TS16949 | Place of Origin | Japan |
| High Light | Cam Follower Bearing ，Thrust Needle Bearing | ||
Nachi OD 30 mm Solid Needle Wheel Roller Bearings NA4903 With Nylon Cage
Overview of Nachi needle roller bearing
Needle roller bearings are a bearing that is classified as either radial or thrust depending on the direction of the load being supported. Needle roller bearings include bearings whose rollers slightly exceed the size range of needle rollers as stipulated by ISO. Needle roller bearings include drawn cup and solid radial bearings, as well as application-specific cam followers, and roller followers. Thrust bearings include thrust needle bearings.
1) Cage & Needle Roller Assemblies
Cage & Needle roller assemblies consist of a complement of needle rollers held in place by a cage.
2) Drawn Cup Needle Roller Bearings
Drawn cup needle roller bearings (with a cage and full complement of rollers) have a unique outer ring structure.
3) Solid Needle Roller Bearings
Solid needle roller bearings are high-accuracy bearings with maximum load capacity within a limited space for various operating conditions.
4) Thrust Needle Roller Bearings
Thrust needle bearings type comes in metric and inch designs. The cage & Needle roller assembly for the thrust needle bearing is a cage that has two pieces joined together
5) Cam Followers
Cam followers, which are equipped with a thick-wall outer ring, crowned rollers, and a stud with a hardened raceway surface, are especially tough and can sustain shock loads.
6) Roller Followers
The roller follower with a thick-wall outer ring and crowned roller has a large load capacity which enables it to carry shock loads.
Features of Nachi needle roller bearing NA4903
| Nachi needle roller bearing NA4903 | |
| Brand Name | NACHI |
| Structure | Needle |
| Type | roller |
| Seals Type | OPEN ZZ 2RS |
| Size(d*D*Bmm) | 17*30*13 |
| Weight(kg) | 0.04 |
| Clearance | C0,C2,C3,C4,C5 |
| Precision Rating | ABEC1,ABEC3,ABEC5,ABEC7,ABEC9 |
| Vibration | V1,V2,V3,V4 |
| Noise Level | Z1,Z2,Z3,Z4 |
| Cage | Steel / Brass / Nylon |
| Advantage | Longer Life Adopted NACHI original seal design to prevent contamination and grease leakage. Contains special grease for wider temperature ranges and longer life. Smooth and Quiet Operation The precision level of our bearing components has been enhanced to ensure smooth and quiet operation. Low Torque Lower rotating torque by improving seal lips. |
Other Models of Nachi Needle Roller Bearings
| No. | Type | Model number | Bore size(mm) | Outside diameter(mm) | Breadth(mm) |
| 1 | Needle roller | BK0408 | 4 | 8 | 8 |
| 2 | Needle roller | BK0509 | 5 | 9 | 9 |
| 3 | Needle roller | BK0609 | 6 | 10 | 9 |
| 4 | Needle roller | BK0709 | 7 | 11 | 9 |
| 5 | Needle roller | BK0808 | 8 | 12 | 8 |
| 6 | Needle roller | BK0810 | 8 | 12 | 10 |
| 7 | Needle roller | BK0910 | 9 | 13 | 10 |
| 8 | Needle roller | BK0912 | 9 | 13 | 12 |
| 9 | Needle roller | BK1010 | 10 | 14 | 10 |
| 10 | Needle roller | BK1012 | 10 | 14 | 12 |
| 11 | Needle roller | BK1210 | 12 | 16 | 10 |
| 12 | Needle roller | BK1412 | 14 | 20 | 12 |
| 13 | Needle roller | BK1416 | 14 | 20 | 16 |
| 14 | Needle roller | BK1512 | 15 | 21 | 12 |
| 15 | Needle roller | BK1516 | 15 | 21 | 16 |
| 16 | Needle roller | BK1612 | 16 | 22 | 12 |
| 17 | Needle roller | BK1616 | 16 | 22 | 16 |
| 18 | Needle roller | BK1712 | 17 | 23 | 12 |
| 19 | Needle roller | BK1812 | 18 | 24 | 12 |
| 20 | Needle roller | BK1816 | 18 | 24 | 16 |
| 21 | Needle roller | BK2012 | 20 | 26 | 12 |
| 22 | Needle roller | BK2016 | 20 | 26 | 16 |
| 23 | Needle roller | BK2212 | 22 | 28 | 12 |
| 24 | Needle roller | BK2216 | 22 | 28 | 16 |
| 25 | Needle roller | BK2512 | 25 | 32 | 12 |
| 26 | Needle roller | BK2516 | 25 | 32 | 16 |
| 27 | Needle roller | BK2520 | 25 | 32 | 20 |
| 28 | Needle roller | BK2816 | 28 | 35 | 16 |
| 29 | Needle roller | BK2820 | 28 | 35 | 20 |
| 30 | Needle roller | BK3012 | 30 | 37 | 12 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company
Year Established:
1989
Total Annual:
1000000-10000000
Employee Number:
10~100
Ecer Certification：
Verified Supplier
Established in 1989, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a b... Established in 1989, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a b...
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