Needle Roller Bearing NA/NK/HK groups 6 references for radial load on rotating shafts. It spans d 20 to 85 mm. Available in INA, CBR, SKF. Nominal dimensions per ISO 15 · ABMA 20. No online price: quoted via WhatsApp with the exact reference.
Pick your references in the table (Add) or send us the exact designation with its suffixes — a technical advisor confirms brand, price and lead time the same business day.
| Reference | Brand | d (mm) | D (mm) | B (mm) | Qty | ||
|---|---|---|---|---|---|---|---|
| HK 2012 | CBR | 20 | 26 | 12 | |||
| NA4906 | INA | 30 | 47 | 17 | |||
| NA4906 C3 | INA | 30 | 47 | 17 | |||
| NK85 | SKF | 85 | 105 | — | |||
| NKI 60 | CBR | 60 | 82 | — | |||
| NKI75 | INA | 75 | 105 | — |
“—” = dimension being verified against manufacturer tables. Nominal values; they are not a batch certificate. Availability is confirmed in the formal quote.
The needle roller bearing NA/NK/HK uses thin cylindrical rollers to deliver high radial capacity in a very compact space. It is a common solution in transmissions, auxiliary shafts, oscillating mechanisms, light and industrial machinery, where the available outside diameter is limited. This series sheet groups NA, NK and HK references under ISO 15, with quoting by reference and availability in CBR, INA and SKF depending on inventory. The main difference compared with an NU/NJ/NUP cylindrical roller bearing is radial space: the needle bearing prioritizes low section height and high radial load, while the cylindrical type is used in more rigid and larger arrangements. Real top references in the lot include HK 2012, NA4906, NA4906 C3, NK85, NKI 60 and NKI75.
| Actual lot data | Value |
|---|---|
| Covered series | serie-NA/NK/HK |
| Dimensional standard | ISO 15 |
| Available references | 6 |
| Bore diameter range | d 20-85 mm |
| Top references | HK 2012, NA4906, NA4906 C3, NK85, NKI 60, NKI75 |
| Brands | CBR, INA, SKF |
We dispatch to Bogotá, Medellín, Cali, Barranquilla and all of Colombia. Request a quote via WhatsApp for your NA, NK or HK needle roller bearings with complete reference, quantity and application.
The price depends on reference, brand and availability. At TECTUL it is quoted via WhatsApp with the complete marking.
The needle bearing is used when radial space is limited; NU/NJ/NUP is selected for more rigid arrangements with a larger section.
It must be pressed with uniform support on the outer shell, without direct blows or deformation. The housing must be clean and aligned.
Yes, NA4906, NA4906 C3 and HK 2012 are among the top references in the lot, subject to availability.
Check the shaft: surface finish, hardness, wear and lubrication. The shaft is part of the working raceway.
Yes. TECTUL dispatches to Bogotá, Medellín, Cali, Barranquilla and other cities in the country.
2Z = steel shield on both sides · 2RS/2RSH = rubber contact seal on both sides · C3 = radial internal clearance greater than normal (thermal expansion) · K = tapered bore. No online price: brand, availability and lead time are confirmed in the formal quote.