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Smith Bearing CR-1-7/8-X-SS stainless steel stud-type cam follower with 1-7/8" roller OD. Sealed design protects against contaminants, ideal for washdown and corrosive environments. Reliable performance in cam actuation and track applications.
MODEL CR-1-7/8-X-SS
Contact supplier for technical support on: 800-932-0076
$115.07 Each
Prices are subject to change
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Returnable: See conditions
Cam Followers The Smith Bearings CR-1-7/8-X-SS Stainless Steel Cam Follower is engineered for precision and durability in demanding applications. This cam follower is crafted from high-quality stainless steel, ensuring exceptional resistance to corrosion and wear, making it an ideal choice for harsh environments.
Key Features
| Material Construction | Manufactured from stainless steel for superior strength and corrosion resistance. |
|---|---|
| Sealed Design | Comes with a sealed configuration to prevent contamination and extend the lifespan of the bearing. |
| Precision Design | Engineered to provide smooth operation and accurate alignment in various applications. |
| Load Capacity | Capable of supporting high radial and axial loads, suitable for both industrial and aerospace applications. |
| Size Specifications | Dimensions of 1-7/8 inches, ensuring compatibility with a wide range of machinery and systems. |
Applications
| Industrial Equipment | Perfect for use in conveyor systems, robotics, and automated machinery where reliable movement is crucial. |
|---|---|
| Aerospace Applications | Approved for use in aerospace environments, providing critical support in engines and airframes. |
| Corrosive Environments | Ideal for applications exposed to moisture and chemicals, thanks to its stainless steel construction. |
Benefits
| Enhanced Durability | The robust stainless steel design ensures long-lasting performance and reduces the need for frequent replacements. |
|---|---|
| Improved Performance | The sealed construction minimizes friction and improves operational efficiency, leading to lower energy consumption. |
| Versatile Compatibility | Designed to fit a variety of systems, making it a flexible solution for different engineering needs. |
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
What is a bearing and what does it do?
A bearing is a mechanical component that enables smooth rotational or linear motion by reducing friction between moving parts. Bearings support loads and facilitate the transfer of forces between moving elements, preventing direct metal-to-metal contact that would cause wear and heat buildup. Rolling element bearings contain balls or rollers that rotate within races (raceways) to minimize friction. Common types include ball bearings (used for moderate loads and high speeds), roller bearings (used for heavy loads at medium speeds), and angular contact bearings (designed for combined radial and axial loads). Bearings are essential in industrial equipment including motors, pumps, compressors, gearboxes, turbines, and conveyor systems.
How do I choose the right bearing for my application?
Bearing selection depends on five key factors: 1. Load Type and Direction — Determine whether your application has radial loads (perpendicular to shaft), axial loads (along the shaft), or combined loads. Deep groove ball bearings suit primarily radial loads; tapered roller bearings excel at combined loads; thrust bearings handle pure axial forces. 2. Rotational Speed — Ball bearings support higher speeds with lower friction. Roller bearings are better for medium-speed, heavy-load applications. Verify bearing speed ratings against your operating RPM. 3. Load Capacity — Select a bearing with adequate load capacity for your application. Basic dynamic load rating (C) and basic static load rating (C₀) determine how much load the bearing can safely carry. 4. Lubrication Requirements — Choose between grease and oil lubrication based on speed, temperature, and load. High-speed or high-temperature applications typically require oil circulation; lower-speed applications can use grease. 5. Precision and Rigidity — Evaluate your application's tolerance for runout deviation. High-precision applications require tighter tolerances and higher-grade bearings.
What bearing materials are available and which should I use?
Standard bearing materials include: - Chrome Steel — Premium bearing steel used by SKF, NSK, Timken, and most manufacturers. Offers excellent hardness, fatigue resistance, and durability in standard industrial applications. Most common for ball and roller bearings. - Stainless Steel — Provides corrosion resistance for applications in wet, humid, or chemically corrosive environments. Used in food processing, marine, and pharmaceutical equipment. - Ceramic Hybrid Bearings — Combine steel races with ceramic rolling elements. Offer reduced friction, lower heat generation, and higher temperature capability. Used in high-speed, high-precision applications and aerospace. - Polymeric Bearings — Utilize fluoropolymer composites with embedded graphite or PTFE. Provide low friction in high-speed applications where lubrication film breakdown would be problematic. Material selection depends on operating environment (temperature, moisture, chemical exposure), speed, load, and precision requirements. Standard chrome steel bearings suit most industrial MRO applications.
What are dynamic and static load ratings, and why do they matter?
Static Load Rating (C₀) — The maximum load a stationary or slowly rotating bearing can support without permanent deformation of its rolling elements or raceways. Defined by ISO 76 as the load producing 0.01% permanent deformation of the rolling element diameter. Static load capacity is the limiting factor when a bearing operates at very low speeds or remains stationary under heavy loads. Dynamic Load Rating (C) — The constant load a bearing can endure for a specified number of revolutions (the L10 life, at which 90% of identical bearings are expected to survive). Dynamic load rating determines how long a bearing will last under rotating or oscillating motion. ISO 281 defines the L10 calculation using the formula: L10 = (C/P)^p, where C is dynamic load rating, P is equivalent dynamic load, and p is the life exponent (3 for ball bearings, 10/3 for roller bearings). Why They Matter — Static load rating determines if a bearing can handle peak loads without permanent damage (even if not rotating). Dynamic load rating determines operational life. For high-speed applications, dynamic rating is critical. For low-speed or stationary loads, static rating may be the limiting factor. Always verify both ratings against your application's load profile.
What is bearing life (L10) and how does it affect my equipment maintenance?
L10 Life Definition (ISO 281) — L10 is the basic rating life at which 90% of a large group of identical bearings are statistically expected to survive under constant load and speed. It is calculated in millions of revolutions using the formula: L10 = (C/P)^p, where C is the basic dynamic load rating, P is the equivalent dynamic bearing load, and p is the life exponent (3 for ball bearings). Converting L10 to Operating Hours — To express L10 life in hours: L10h = (L10 × 10^6) / (60 × n), where n is rotational speed in RPM. For example, a bearing with L10 = 1,000 million revolutions operating at 3,600 RPM has approximately L10h ≈ 4,630 hours. Modified Life (L10a) — Actual bearing life also depends on lubrication quality, contamination, speed, temperature, and bearing accuracy. ISO 281 defines a modified life factor (a₁ × aISO) that adjusts the theoretical L10 for these real-world conditions. High-quality lubrication and proper maintenance can extend bearing life significantly; poor lubrication or high contamination reduces it. Why It Matters for Maintenance — L10 life helps you schedule preventive maintenance, budget for bearing replacement, and select bearings adequate for your duty cycle.
How should I maintain and lubricate bearings?
Lubrication Importance — Improper lubrication causes over 40% of bearing failures. Proper bearing lubrication prevents friction damage, dissipates heat, protects against corrosion, and acts as a barrier against contaminants (dust, moisture, debris). Lubrication Selection — Choose between grease and oil based on: - Grease: Suitable for low-to-medium speed, sealed bearings, and applications without continuous circulation. Easier to apply and retain. Common for motors, household appliances, and sealed units. - Oil Mist or Circulating Systems: Better for high-speed applications, high-temperature environments, and heavy-load machinery where heat dissipation is critical. Best Practices: 1. Map all lubrication points and create a maintenance schedule. 2. Use the correct lubricant type and viscosity grade specified by the bearing manufacturer. 3. Store lubricants in sealed, labeled containers away from moisture and contaminants. 4. Monitor bearing temperature and vibration; unusual heat or noise may indicate inadequate lubrication or bearing wear. 5. Replace bearings before reaching L10 life if contamination or lubrication failure is detected.
Disclaimer: The return policy information shown below is merely a copy of the text as stated in IDC-USA's Annual Return Policy.
File: http://documents.mrosupply.com/file_uploads/IDCreturnpolicy.pdf
ANNUAL RETURN POLICY PURPOSE: The purpose of IDC-USA’s Annual Return Policy is to allow IDC Distributors the opportunity to return salable stock merchandise of current design that may not have adequate “turns” and replace it with faster moving product.
ACCEPTANCE: IDC Owner-Distributors shall submit a return list to IDC-USA with all pertinent information as follows:
a. Product brand name
b. Quantity
c. IDC-USA’s product identification number
d. Corresponding distributor’s P.O. number or invoice number Acceptance of return shall be subject to IDC-USA inventory levels and manufacturer’s restrictions.
AUTHORIZATION: The return shall be audited and the IDC Owner-Distributor will receive an approved return list with a Return Material Authorization (RMA) number assigned to it. RETURN DATE: Each owner-distributor shall be assigned a month during which they shall be entitled to make a single annual return.
Product Qualification: All products returned must be:
a. On the current price list
b. In good resale condition
c. In the original packaging
d. Purchased from IDC-USA within 3 years of the return
e. Stock items only; no special order items
f. Only those items which have been approved
VALUE: The IDC Owner-Distributor shall receive a credit not to exceed 5% of the owner-distributor’s prior year annual purchases from the IDC Distribution Center. Credit received shall be the actual purchase price or price in effect at the time of the return, whichever is lowest, less applicable restocking charges. Additionally, all annual returns must have a minimum return value of $100.
RESTOCKING CHARGES: There will be a 15% restocking fee unless return is offset by a noncancelable order of equal value to be placed at the time of return. All items received that are not in their original box shall be subject to an additional 15% repackaging fee.
FREIGHT: Returns will be made freight prepaid by the IDC Owner-Distributor to the IDC Distribution Center. The packing slip and all cartons must reference the RMA number. The owner-distributor will be notified of any items received that do not qualify as set forth above. Those items will not be credited and shall be scrapped unless the IDC Owner-Distributor directs otherwise and assumes any additional transportation charges.