Nikki Co., Ltd.
Nikki Synthetic Rubber Double-Sided Shield Type

Manufacturer: Nikki Co., Ltd.
Providing the world’s highest level of quality
Founded in 1966, TPI is a Taiwanese bearing manufacturer representing East Asia.
Customers in 17 countries—including the United States, Europe, the Middle East, and Southeast Asia—actively choose the TPI brand, which continues to grow as a trusted international name.
We are able to provide quality equal to or even better than that of Japanese manufacturers.
What are bearings?
A bearing is a machine element that comes into contact with a rotating or reciprocating part and supports shafts, etc. The term “bearing” comes from the English word “bearing” (bear = to support, to bear).
An ancient Egyptian painting shows the earliest known use of bearings—used to start a fire. Today, engineers and manufacturers incorporate bearings into a wide range of mechanical products. Because they play a vital role in any device with rotating parts, many refer to bearings as the “rice of the machinery industry.”
The role of bearings
Bearings are used between the rotating “shaft” and the part that supports the rotation.
Friction always occurs between the rotating “axis” and the part that supports the rotation.
The primary role of bearings is to reduce friction and ensure smooth rotation.
Bearing types
Bearings fall into two main categories: plain bearings and rolling bearings.
Plain bearings support a shaft on a sliding surface, forming an oil film between the shaft and bearing. This lubrication allows smooth rotation, while also offering excellent resistance to vibration, high-speed rotation, and impact loads.
In contrast, rolling bearings use balls or rollers placed between an inner and outer ring. There are two main types: ball bearings, which use balls, and roller bearings, which use cylindrical rollers.
Among them, deep groove ball bearings are the most widely used due to their global standardization and broad manufacturer adoption. That’s why we supply deep groove ball bearings as our main product.
Synthetic rubber double-shielded type (LLB)
This type is sealed on both sides with rubber seals, and compared to the metal shielded type, this bearing has better sealing of the internal grease. This type has excellent dust-proofing and low noise properties.
It is ideal for use as an actuator in factory automation equipment and precision instruments.
Specification
Shield Shape | Synthetic rubber double-sided non-contact type (LLB) |
---|---|
Material | High carbon chromium bearing steel |
Standard Model List
Part number | Inner diameter (mm) | Outer diameter (mm) | Width (mm) | Weight (g) |
---|---|---|---|---|
6000LLB | 10 | 26 | 8 | 19.0 |
6001LLB | 12 | 28 | 8 | 21.0 |
6002LLB | 15 | 32 | 9 | 30.0 |
6003LLB | 17 | 35 | 10 | 39.0 |
6004LLB | 20 | 42 | 12 | 69.0 |
6005LLB | twenty five | 47 | 12 | 80.0 |
6006LLB | 30 | 55 | 13 | 116.0 |
6007LLB | 35 | 62 | 14 | 155.0 |
6008LLB | 40 | 68 | 15 | 190.0 |
6200LLB | 10 | 30 | 9 | 32.0 |
6201LLB | 12 | 32 | 10 | 37.0 |
6202LLB | 15 | 35 | 11 | 45.0 |
6203LLB | 17 | 40 | 12 | 60.0 |
6204LLB | 20 | 47 | 14 | 106.0 |
6205LLB | twenty five | 52 | 15 | 128.0 |
6206LLB | 30 | 62 | 16 | 199.0 |
6207LLB | 35 | 72 | 17 | 288.0 |
6208LLB | 40 | 80 | 18 | 366.0 |
6300LLB | 10 | 35 | 11 | 53.0 |
6301LLB | 12 | 37 | 12 | 60.0 |
6302LLB | 15 | 42 | 13 | 82.0 |
6303LLB | 17 | 47 | 14 | 115.0 |
6304LLB | 20 | 52 | 15 | 144.0 |
6305LLB | twenty five | 62 | 17 | 232.0 |
6900LLB | 10 | twenty two | 6 | 9.0 |
6901LLB | 12 | twenty four | 6 | 11.0 |
6902LLB | 15 | 28 | 7 | 16.0 |
6904LLB | 20 | 37 | 9 | 36.0 |
6905LLB | twenty five | 42 | 9 | 42.0 |
626LLB | 6 | 19 | 6 | 8.1 |
607LLB | 7 | 19 | 6 | 8.0 |
608LLB | 8 | twenty two | 7 | 12.0 |