# Dodge 135130 WSTU-SCM-215 Wide Slot Take-Up Bearing 2-15/16" Bore Set Screw Medium Duty - MROSupply.com ***Dodge 135130 WSTU-SCM-215 wide slot take-up bearing unit with 2-15/16" bore, 65° setscrew locking, medium duty ball bearing insert, cast iron housing, DualGuard seal with flingers, 216 series. Designed for belt tensioning in general purpose applications, this non-expansion unit allows relubrication and features a powder coated finish.*** ## Product details: - Catalog number: WSTU-SCM-215 - SKU: 131812 - Price: ***$466.62*** Each - Shipping: ***FREE SHIPPING*** ON ORDERS OVER $100 - Typically Ships in: 1 day - Brand: [Dodge](https://www.mrosupply.com/brands/dodge/) - Category: - [Take-Up Bearing Units](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/take-up-bearings/take-up-bearing-units/) - [Take-Up Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/take-up-bearings/) - [Mounted Ball Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/mounted-ball-bearings/) - [Mounted Bearings](htts://www.mrosupply.com/bearings/mounted-bearings/) - [Bearings](htts://www.mrosupply.com/bearings/) - Unit of measure: each - Weight: 18.500 lb - Technicall support: contact supplier for technical support on +1-864-284-5700 ## Product images: - https://static.mrosupply.com/images/noimage.webp ## Product attributes; - Application: General Purpose - Ball bearing series: 216 series - Bearing Series: 216 series ball bearing - Bearing type: Ball, ball - Bore: 2 15/16 in - Bore Diameter: 2-15/16" - Bore length: 2.3800 in, 60.452 mm - Duty: Medium duty - Duty Rating: Medium duty - Expansion: No - Expansion capability: Non-expansion (fixed) - Finish: Powder coated - Greasable: Yes - High temp: No - Housing construction: Solid - Housing material: Cast iron - Housing Material: Cast iron - Housing option: Cast iron - Housing type: Wide-slot take-up - Housing Type: Wide slot take-up frame - I.D.: 2 15/16 in - Insert material: Steel - Insert option: Bearing steel - Insert type: Ball Bearing - Locking: Set screw - Locking Mechanism: 65 degree setscrew locking - Lubrication type: Grease - Max Speed: 1000 RPM - Relubrication: Yes - Rolling element: Medium duty ball - Rolling Element: Medium duty ball bearing - Seal option: DualGuard seals with flingers - Seal Type: DualGuard seals - Sensor ready: Adapter required - Shaft attachment: Setscrew - Shaft diameter: 2.9375 in - Standoff housing: No - Static load capacity: 13102 lbf, 58280.6 N - Suitable for high temperature: No - Suitable for washdown: No - Take-up frame size: WS-608 - Type: Wide slot take up ## Product documents / software: - [Accessories](https://documents.mrosupply.com/product_documents/12/123858/Setscrew_Ball_Bearings_Accessories_Related_Products.pdf) - [Brochure](https://documents.mrosupply.com/product_documents/13/18/131812/307355_sheGdgs.pdf) - [Features](https://documents.mrosupply.com/product_documents/12/123858/Setscrew_Ball_Bearings_Features.pdf) - [Instruction Manual](https://documents.mrosupply.com/product_documents/13/18/131812/307357_HOiMVfh.pdf) - [Nomenclature](https://documents.mrosupply.com/product_documents/12/123858/Setscrew_Ball_Bearings_How_to_Order_Nomenclature.pdf) - [Selection](https://documents.mrosupply.com/product_documents/12/123858/Setscrew_Ball_Bearings_Easy_Selection.pdf) - [2D DXF front](https://documents.mrosupply.com/product_documents/13/135130/baldor2d_135130_front_nf3rl9X.dxf) - [2D DXF right](https://documents.mrosupply.com/product_documents/13/135130/baldor2d_135130_right_MP33AL3.dxf) - [2D DXF top](https://documents.mrosupply.com/product_documents/13/135130/baldor2d_135130_top_6ladTts.dxf) - [3D DXF](https://documents.mrosupply.com/product_documents/13/135130/baldor_dxf3d_135130_YfDxyTl.dxf) - [3D PDF Datasheet](https://documents.mrosupply.com/product_documents/13/135130/baldor_pdf_135130_BBNity4.pdf) ## Suggested products: - [Dodge 077705 WSTU-SCM-300-HT wide slot take-up bearing unit with 3" bore, 65° set screw locking, medium duty rating, high temperature capability to 400°F, cast iron housing, DualGuard seals with flingers, 216 series ball bearing insert, non-expansion, relubricatable, general purpose application.](https://www.mrosupply.com/products/2217697/as-markdown/) - [Dodge 076343 WSTU-SCMED-75M wide slot take-up bearing unit with 75mm bore, set screw locking, medium duty extreme construction, cast iron housing, QuadGuard seal, 216 series ball bearing, non-expansion design for belt tensioning applications.](https://www.mrosupply.com/products/791920/as-markdown/) - [Dodge 135130 WSTU-SCM-215 wide slot take-up bearing unit with 2-15/16" bore, 65° setscrew locking, medium duty ball bearing insert, cast iron housing, DualGuard seal with flingers, 216 series. Designed for belt tensioning in general purpose applications, this non-expansion unit allows relubrication and features a powder coated finish.](https://www.mrosupply.com/products/131812/as-markdown/) - [Dodge 059758 WSTU-DLM-215 wide slot take-up bearing unit with 2-15/16" bore, D-Lok concentric clamp collar locking, medium duty ball bearing, cast iron housing, DualGuard seal. Non-expansion (fixed) for belt tensioning applications. General purpose relubricatable design with bearing steel insert.](https://www.mrosupply.com/products/132466/as-markdown/) - [Dodge 125998 WSTU-SCM-75M wide slot take-up bearing unit with 75mm bore, set screw locking, medium duty ball bearing insert, and cast iron housing. DualGuard seals with flingers provide contamination protection. Designed for belt tensioning in general purpose applications, this non-expansion unit allows relubrication and features a powder coated finish.](https://www.mrosupply.com/products/128834/as-markdown/) ## Product's reviews: - Bushing order for down equipment - Great Service, Prompt delivery! - Dodge conveyor bushings - The right part, in stock, easy to find, quickly shipped. - Replacement pillow block bearing - I ordered 2 Dodge Pillow block bearings to replace replace a failed bearing on my chipper and to replace a second bearing as a precaution. I received the both bearings promptly, but discovered that the failed bearing also damaged it's housing. Since the housing without a bearing doesn't seem to be readily available, I requested to return the one bearing and replace it with the complete pillow (housing with bearing). Since I was getting an entirely different part, MROSupply customer support suggested that I get a full refund for the bearing and place a new order for the pillow block (housing with bearing). I have received the pillow block and am waiting for the refund which I expect to receive very soon. - Delivery time - Awesome delivery time on this type of bearing. ## FAQ: - How much grease is in a Dodge bearing out of the box?: Most standard Dodge bearings ship with a 33–35% factory grease fill. Washdown bearings ship 100% full; Harsh Duty ball bearings ship at 66%. All are shaft-ready out of the box — no pre-lube needed before installation. - How do I keep water out of a bearing on a wet shaft (washers, washdown conveyors)?: Three factory-recommended angles: a more robust multi-lip seal option for the housing where one exists; Dodge's modern SAF-style mounted bearing, which installs faster than a traditional SAF assembly and seals better; and continuous lubrication with an automatic lubricator (IntelliLube), which keeps a positive grease purge at the seal so water is pushed out instead of drawn in. - Which Dodge bearings hold up on sand-and-gravel conveyors with regular washdown?: Dodge's Harsh Duty series (formerly the Defender series) was designed for aggregate duty. It's a seal upgrade over the standard product with identical mounting dimensions, so it drops into your existing footprint: Harsh Duty versions exist for Type E and TAF tapered-roller pillow blocks and for ball bearings (ED suffix). The tapered line carries a one-year performance guarantee against solid-particle-contamination failure when commissioned with a Dodge IntelliLube automatic lubricator. - What grease do Dodge bearings come with from the factory?: Standard Dodge mounted bearings ship shaft-ready with an NLGI #2 lithium-based grease. Ball bearing inserts are factory-filled with Mobil Unirex N2 (a lithium complex grease); roller bearings get a heavier grease, Mobil XHP 222. Bearings can also be ordered dry, or with a special grease, if your plant runs its own lubrication standard. - How does Dodge warranty evaluation work if a product fails?: Failed units go to Dodge's US plants for evaluation — about a week in transit plus one to two weeks of analysis, and you get the findings either way. Warranty covers workmanship and material defects; failures caused by the application (lubrication, installation) fall to the customer, but the failure analysis tells you the root cause so it doesn't repeat. - How do I properly install a take-up bearing unit onto my shaft?: Use the eccentric locking collar or set screw provided to position the bearing on the shaft, then secure it tightly to prevent slippage under load. For tight-tolerance fits, use an induction heater to expand the bearing bore slightly—never force the bearing on dry, as this causes internal damage and premature failure. - How do I determine the correct bore diameter for my take-up bearing unit?: The bore diameter (inside diameter) must match your shaft size precisely to ensure proper grip and alignment. Measure your shaft OD with a caliper and cross-reference bearing size charts—bore diameters range from 10mm to 150mm in standard series. An oversized bore will cause slippage; a tight-tolerance fit requires an induction heater for installation. - Should I use grease or oil lubrication in my take-up bearing?: Smaller bore bearings (under 25mm) typically use grease lubrication for sealed operation and easy maintenance. Larger bore bearings or higher-speed applications may require oil lubrication to maintain proper viscosity and cooling; consult the bearing's DN factor or RPM rating to confirm grease suitability at your operating speed. - What is the key advantage of a take-up bearing unit compared to a fixed bearing mount?: A take-up bearing unit features an adjustable mechanism with a locking collar or threaded screw that allows you to adjust the bearing position along a linear path to maintain belt or chain tension without disassembling the equipment. This eliminates downtime and accommodates wear and stretch over the bearing's operational life. - What housing material options are available and when would I use each?: Cast iron housings offer maximum load capacity for heavy-duty conveyor and agricultural applications, stamped steel provides lighter-weight strength for moderate loads, and thermoplastic or PBT polymer housings resist corrosion in washdown or moisture-heavy environments like food processing. Material choice depends on load, environment, and corrosion resistance requirements. - What is the purpose of a take-up bearing in a conveyor system?: Take-up bearings maintain proper belt tension by allowing axial adjustment of the bearing housing as the belt stretches and wears over time. This prevents belt slippage and reduces uneven wear, extending both belt and bearing life. - Can take-up bearings be used with both belt and chain drives?: Yes, take-up bearings are used in both belt-drive and chain-drive systems, though chain take-up units may have different adjustment mechanisms. The specific design depends on whether the drive is for flat belts, V-belts, or roller chains. - What maintenance is required for take-up bearing assemblies?: Take-up bearings require periodic adjustment to maintain correct tension, regular lubrication of the bearing itself, and inspection of the housing bolts for tightness. Most applications need quarterly tension checks and annual bearing relubrication. - What's the difference between heavy-duty and standard take-up bearings?: Heavy-duty take-up bearings use reinforced housings and larger bore sizes to handle higher loads and shock in demanding applications like quarrying or mining. Standard take-up bearings are suitable for lighter conveyor loads and manufacturing line applications. - How do you adjust a take-up bearing for correct tension?: Take-up bearings are adjusted by loosening the housing bolts and sliding the bearing assembly along adjustment slots or using threaded adjustment mechanisms to move the bearing axially. Proper tension should prevent belt slip while allowing the belt to be hand-deflected approximately 1–2 inches midspan. - How often should I grease a mounted bearing?: Use the formula (OD in mm) × (Width in mm) × 0.005 = grams for periodic relubrication of the bearing element only; initial housing cavity fill is separate and should be 30–50% of free volume. Over-greasing damages seals and generates excess heat—stick to the calculated quantity and recommended relubrication schedule. - What temperature should a mounted bearing run at?: Monitor housing surface temperature (the standard MRO measurement point): 40–65°C is normal, 70–75°C warrants investigation of misalignment or over-greasing, and 80°C requires immediate shutdown. The inner race runs 15–30°C hotter than the housing surface, so an 80°C housing reading means lubricant degradation is accelerating and the bearing requires emergency diagnosis. - When should I replace a mounted bearing?: Replace based on condition: vibration signature analysis or ultrasonic emission (detected with a hand-held meter) indicates wear hours or days before audible noise appears, and is the actionable MRO signal. Other replacement triggers include continuous operation above 80°C housing temperature, visible grease leakage, or reaching the manufacturer's service interval for your duty cycle. Scheduled relubrication and temperature monitoring extend service life significantly — replacement is a last resort, not preventive maintenance. - What are the main types of mounted bearings?: Mounted bearings come in four main forms: pillow blocks (flat-base, shaft parallel to mounting surface), flange mounts (perpendicular shaft, available in 2-bolt and 4-bolt variants with different radial ratings), hanger bearings (overhead support for long horizontal shafts), and take-up frames (adjustable center-distance units for belt or chain drive tensioning). Select based on your shaft orientation, load direction, and space constraints. - How do I install a mounted bearing correctly?: Verify your shaft diameter is within the bearing bore tolerance (consult the NSK or SKF datasheet), then secure the bearing to the mounting surface using the specified bolt torque and engage the locking collar or set-screw on the shaft to prevent axial slip. Hand-rotate the shaft through several complete turns with a dial indicator, laser alignment tool, or feeler gauge to confirm smooth operation and proper shaft runout within spec. - 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 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. - 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. - 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 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 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. - 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.