Product SpecificationThe RBC Roller style cam follower was developed for applications requiring a high degree of reliability and maintainability. The space between the two paths of rollers which is created by the center thrust ring provides a large grease storage cavity. This larger than normal ability to store lubricant, in combination with excellent grease retention of the contacting lip seals, makes the RBC Roller virtually maintenance-free. Under most operating conditions relubrication is not necessary. The center thrust ring in the RBC Roller also imparts end guidance to the two paths of rollers. End-guided cylindrical rollers allow the RBC Roller to run at lower operating temperatures and higher speeds. Thrust loading in the RBC Roller is accommodated through contact between outer ring flanges and roller ends, and contact between roller ends and the center thrust ring. This provides the RBC Roller with superior thrust capability. As a result, the RBC Roller is tolerant of tracking misalignment and axial loads that would overwhelm other designs. Contacting lip seals are a standard feature of the RBC Roller. These seals ride on smooth ground surfaces on the inner ring or stud. This sealing system provides positive exclusion of solid and liquid contaminants, and excellent lubricant retention. The RBC Roller is pre-lubricated at the factory with a high quality mineral oil, NLGI grade 2 grease. This cam follower is manufactured with a crowned outer ring. Crowned outer rings are used to minimize outer ring thrusting in applications where the axis of the cam follower is not parallel to the surface of the track or is skewed relative to the direction of travel. However, in well aligned applications, crowned outer rings can cause accelerated track wear. RBC Bearings has been providing bearing solutions to our customers since 1919. A publicly-traded company (NASDAQ: ROLL), RBC currently has 23 manufacturing facilities worldwide, with 18 located in the USA.FeaturesTwo rows of large diameter, end guided rollers yield maximum capacity and increased fatigue lifeCrowned outer ring to better accommodate applications where misalignment is presentLubed for life design saves time, maintenance costs, and lubrication costsContacting lip seals provide positive exclusion of contaminants, along with excellent lubricant retentionCenter thrust ring design tolerates moderate axial loading and creates large internal grease storage areaAdditional InformationManufacturer: RBC BearingsShipping Weight: 425 Product Dimensions: Width: 3.40 Length: 4.80 Height: 3.40 Delivery InformationRefunds & ReturnsAbout UsOur GuaranteeContact UsAll our stock is at our US warehouse.Your item will be shipped by either DHL or UPS depending on the size/weight of the package and delivery location. We aim to ship orders within 24hours of processing your payment. Shipping is free. 30 day return or exchange policy for all our products. Only factory defects are accepted as the reason for product return. Returned item(s) must be returned with package completely intact, and all accessory(s) inside the package must be original condition.We do not pay for the postage costs for returned defective items.Items returned must be received within 30 days from purchase. No refund or replacement is issued after 30 day time period after purchase. Please allow up to 7 working days to process your returned item(s) after we receive it.We are extremely fair, and in the rare event of something unusual happening, we will gladly work with you to find a solution.We sell on eBay since 2007. We are based in the US and ship from our own warehouses. Our products are 100% authentic and all brand new. We work with the biggest suppliers in the UK to bring you the best quality items!We guarantee to provide the best service.Customer satisfaction guaranteed!We offer a 100% Satisfaction Guarantee on all sales. If you are not happy with your purchase for any reason, please contact us within seven days of receipt of your item, or email us to share your concerns. We are extremely fair and will happily work with you to find a solution to any problem.We aim to maintain 100% feedback, and we want every single one of our customers to be a happy one. So in the rare case something does go wrong, before leaving a negative feedback, contact us so we can help make things right!In the rare event that you have an issue with your product or our service please contact us by email to share your concerns, we will respond within 24 hours to help to rectify the problem.