KOYO bearings 2316-2RS
2316-2RS This high-quality koyo Self-aligning ball bearings is designed for high load capacity and offers reliable performance in various applications.
Read MoreModel:2316-2RS
Dimensions(mm): 80x170x58mm
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Japan’s koyo bearing company produces tens of thousands of high-precision and high-quality Koyo bearing series products), providing information about aerospace technology, computer components, motors, high-speed trains, MRT trains, industrial machinery, CNC lathes, high-precision machining machines, automobile, locomotive industry, steel industry And other important components to make the best choice.
Of course. Here is a detailed parameter introduction for the KOYO 2316-2RS bearing.
The KOYO 2316-2RS is a self-aligning ball bearing with straight cylindrical bore and integral rubber seals on both sides. The -2RS suffix is the key differentiator from the standard 2316, indicating it is pre-lubricated and protected from contamination. It is designed for applications requiring high-speed operation, misalignment compensation, and minimal maintenance.
The core dimensions are identical to the open-type 2316 bearing, with the addition of the seals.
Parameter | Value | Description |
---|---|---|
Bearing Type | Self-Aligning Ball Bearing with Seals | |
Shaft Diameter (d) | 80 mm | The inner diameter (bore) that fits onto the shaft. |
Outside Diameter (D) | 170 mm | The outer diameter of the bearing. |
Width (B) | 58 mm | The total width. Note: The width may be very slightly larger than the open 2316 due to the seals. |
Dynamic Load Rating (C) | ~96 kN | The radial load capacity for 1 million revolutions. May be slightly reduced compared to the open version due to seal friction. |
Static Load Rating (C₀) | ~30 kN | The maximum stationary radial load. |
Grease Limit Speed | ~4,800 rpm | Maximum speed with grease. Lower than the open version due to increased heat from seal friction. |
Oil Limit Speed | N/A | Oil lubrication is typically not used with integral contact seals. |
Seal Type | 2RS - Rubber Contact Seals | RS denotes a synthetic rubber (NBR) seal with a steel insert lip that lightly contacts the inner ring. |
Weight | ~3.4 kg | Approximate weight (slightly more than open type due to seals). |
Note: The reduction in speed rating and potential slight reduction in load capacity are trade-offs for the greatly enhanced contamination protection.
The suffix defines the sealing configuration:
-2RS: The "-2" indicates two seals. "RS" stands for a Rubber Seal (typically made of Nitrile Butadiene Rubber - NBR) with a steel reinforcement ring. This is a contact seal, meaning the lip rides against the inner ring to provide a very effective barrier against dust, dirt, and moisture.
No "K": The absence of a "K" suffix confirms it has a straight cylindrical bore, not a tapered bore for an adapter sleeve.
Alternative Suffix: -2Z / ZZ
If you see 2316-2Z, this indicates non-contact metal shields.
Shields (Z) offer less protection against fine dust or moisture but have lower friction and higher speed limits than contact seals (RS).
Seals (RS) offer superior protection, especially against liquids, at the cost of lower speed capability.
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