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Drawn cup needle roller bearing INA BK2018-RS
- Manufacturer Part Number
- BK2018-RS
- Brand
- INAOfficial brand
- Category
- Bearings
- Subcategory
- Needle roller bearing
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Description
INA BK2018-RS is a needle roller bearing reference, within Bearings. Request a quote for BK2018-RS via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The INA BK-RS series needle roller bushing is a radial needle roller bearing in bushing form, fitted with a lateral seal, that is mounted directly in the housing without the need for an inner ring. It is used to guide shafts with rotating or reciprocating motion in confined radial spaces, where high load capacity and rigidity are required with a low-profile design. MR Accesorios Industriales supplies it in Buenos Aires, Argentina.
The series designation is read in parts: BK identifies the thin-walled needle roller bushing, the digits that follow indicate the shaft diameter and the width of the rolling zone, and the suffix -RS indicates that the bushing includes a contact seal. Thus, in examples such as BK1012-RS, BK1414-RS or BK2018-RS, the dimensions of the assembly change, but the same product family is maintained. To request a quote, the complete part number is the key piece of information for the inquiry.
These bushings appear in machine tools, transmission equipment, pumps, compressors, conveyors and lifting mechanisms, among other industrial applications in Argentina. They are chosen when radial space is limited and the shaft is already hardened and ground, since the needle rollers run directly on the shaft raceway. They are also used in joints, cams and short-travel linear guides where rigidity and low inertia are sought.
To select the bushing, you must verify the shaft diameter and tolerance, the hardness and roughness of its raceway, and the width available in the housing. The -RS seal protects against dust and lubricant loss, so it is advisable to check the condition of the lips and the type of grease or oil. Mounting is done by press fitting or with suitable tools, taking care with alignment to the shaft and avoiding impacts on the needle rollers.
Cross-brand equivalences are resolved by dimensions and seal type, not by the commercial part number: a needle roller bushing with the same dimensions and configuration can be interchanged between manufacturers, as long as tolerances and load capacity are respected. At MR Accesorios Industriales you can check the interchangeability of the BK-RS series with other lines. Send us the part number or model you need on WhatsApp and we will reply shortly.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the -RS suffix mean on BK bushings?
- The -RS suffix indicates that the needle roller bushing includes a lateral contact seal. This seal retains lubricant and limits the entry of dust and particles, so it is common in applications with dirty environments or extended relubrication intervals.
- Can a BK-RS bushing be mounted directly on the shaft?
- Yes, the bushing's needle rollers run on the shaft raceway, which must be hardened, ground and have the appropriate hardness and roughness. If the shaft does not meet these conditions, it is advisable to evaluate a solution with an inner ring or consult the case with us.
- How do I request a quote for an INA BK-RS bushing?
- Write to us on WhatsApp with the complete part number, for example
BK1414-RS, or with the shaft and housing dimensions. With that information we verify the corresponding BK-RS series variant and reply shortly.

