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This low speed retainer is made from high density polyethylene (HDPE) and used in 316 stainless steel bearings. It has very good corrosion resistance so can be used in the presence of seawater and many chemicals.

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They also help to retain grease around the balls and raceways. For greater accuracy and to prevent additional friction, it is important that the retainer is not allowed too much radial movement. To achieve this, the retainer is guided by either the balls or one of the rings.

For higher temperatures, stainless steel is usually recommended. The crown cage and ribbon cage perform the same function but the crown cage is used primarily on smaller miniature bearings and thin-section bearings where space is more limited. Steel cages are preferred for arduous operating conditions and where high levels of vibration are experienced. Cages in 316 stainless steel or GH4099 nickel-based alloy can be fitted to full ceramic bearings from 8mm bore upwards.

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These standard retainers are manufactured from carbon steel for chrome bearings and AISI304 or AISI420 grade stainless steel for stainless bearings. These were often made from brass which also offered a high temperature capability but this is much less common due to higher cost of brass and advances in steel technology.

GE HealthCare will accept, for return from customer, items that are in new condition, unworn, unaltered and free of damage. Items cannot be returned or exchanged beyond 30 days from customer’s receipt of the original order and all returned items will be subject to a 15% restocking fee. To obtain a full refund or exchange of the item within the 30 day return period (subject to the 15% restocking fee) customer must request a return materials authorization (RMA) from GE HealthCare and return the item to GE HealthCare utilizing this RMA number. Items must be returned in the original packaging, unused and free of damage.Please note, cuffs, BP items, sterile and hazmat items cannot be returned. If a replacement order is requested, the restocking fee may be waived at GE HealthCare’s sole discretion.

From lubrication failure to misalignment bearing failure occurs for a range of reasons. Retainers, however, can succumb to two common problems:

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GE HealthCare will accept, for return from customer, items that are in new condition, unworn, unaltered and free of damage. Items cannot be returned or exchanged beyond 30 days from customer’s receipt of the original order and all returned items will be subject to a 15% restocking fee. To obtain a full refund or exchange of the item within the 30 day return period (subject to the 15% restocking fee) customer must request a return materials authorization (RMA) from GE HealthCare and return the item to GE HealthCare utilizing this RMA number. Items must be returned in the original packaging, unused and free of damage.Please note, cuffs, BP items, sterile and hazmat items cannot be returned. If a replacement order is requested, the restocking fee may be waived at GE HealthCare’s sole discretion.

This moulded PA66 retainer has better sliding characteristics than the steel cage and produces fewer fluctuations in running torque. It is suitable for higher speeds than the steel type. It is also available with fibreglass reinforcement for greater rigidity and even higher speeds. The polyamide retainer has good low noise properties. This retainer is not suitable for low temperature applications as it loses elasticity below about 30°C. In vacuum applications, it may become brittle.

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The phenomena when the retainer wobbles like a hula-hoop causing torque spikes in the rotating assembly. The retainer should track in a true circumferential plane concentric with the pitch diameter of the balls.

When an axial load is applied to static bearings that have the axis of their shaft in a horizontal mode, the balls fall downward to a position where they are unequally spaced prior to the load being applied. When the axial load is applied it squeezes the balls between the inner and outer raceways. Now that the balls are held securely in unequally spaced positions they cause the retainer to bind. This binding is called “retainer hang-up.” Once bearing rotation commences the retainer is stressed and some of the balls may skid causing damage that will initiate premature bearing failure.

PEEK cages are often used in ceramic bearings, 316 stainless steel bearings and PEEK bearings. They are highly corrosion resistant, have a wide temperature range and are suitable for vacuum use.

Time is valuable when it comes to patient care. Service Shop, from GE HealthCare, makes ordering faster and easier than ever before, so you can focus on what matters the most - patient care.

Customer agrees that products purchased from the GE HealthCare Service Shop will only be used in operating and servicing medical equipment at a healthcare facility located in the United States in which it was intended, and will not be otherwise used for manufacturing, resale or other distribution.

Don't know your approval number? Call 800-437-1171Enter opt 1 for the first three prompts, and have your System ID available.If you add item(s) to cart and submit your order without the approval number, GE will contact you before your order can be confirmed for shipment.

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This retainer is used in ceramic bearings, 316 stainless steel bearings and PTFE bearings. It is highly corrosion resistant and has a very wide temperature range.

A full complement (or full ball) bearing contains extra balls and has no retainer. It is used for its greater radial load capacity although axial load capacity is very small. These bearings can only be used at low speeds and bearing torque is increased due to ball to ball friction. Improved steel and hardening techniques have increased the load capacities of bearings with cages and the full complement bearing is much less common now.