Introduction to UCP Series Pillow Block Bearings and UCP205 Bearing
Pillow block bearings, particularly the UCP series, are widely used in industrial applications due to their robust design and versatility. These bearings are designed to support rotating shafts and are commonly mounted in housings, making them ideal for various machinery and equipment. The UCP series is known for its durability, ease of installation, and ability to handle both radial and axial loads.
The features: The UCP205 bearing is a prominent model within the UCP series. It features a cast iron housing, which provides excellent strength and resistance to wear, and a sealed bearing insert that ensures long-lasting performance even in harsh environments. The UCP205 is designed to accommodate shafts of specific diameters, making it suitable for applications requiring precise alignment and smooth operation.
The applications: In industrial settings, the UCP205 bearing is commonly used in conveyor systems, agricultural machinery, and material handling equipment. Its ability to withstand heavy loads and high speeds makes it a reliable choice for demanding applications. Additionally, the sealed design of the UCP205 helps prevent contamination, extending the bearing's lifespan and reducing maintenance requirements.
Overall, the UCP series, including the UCP205 bearing, is an essential component in modern industrial machinery, offering durability, efficiency, and ease of use.
Customization Welcomed:
We can print your brand (logo,artwork) on the shield or laser engraving your brand on the shield.
We can custom your packaging according to your design.
All copyright owned by clients and we promised don't disclose any information.
Packing and Shipping:
The deep groove ball bearings will be securely packaged individually, or tube packing or packed as customization packing
Shipping method is negotiable.
Differentiation Table Between Pillow Block Bearings and The UCP205 Bearing:
| Category | Pillow Block Bearings (General) | UCP205 Bearing (Specific Model) |
| Structural Design | Cast iron housing + self-aligning ball bearings | Cast iron housing (standard size) + chrome steel insert with integrated seals |
| Shaft Diameter | Wide range (e.g., 12–60mm, UCP204–UCP212) | Fixed 25mm shaft diameter (standard) |
| Load Capacity | Moderate radial load; some models handle axial load | Moderate radial load (light-to-medium duty); not for heavy/impact loads |
| Sealing | Open or sealed options (varies by model) | Pre-installed rubber seals (dust/moisture resistance) |
| Applications | General industrial use (conveyors, fans, agriculture) | Compact machinery (small conveyors, motor bases, food processing) |
| Installation/Maintenance | Bolt-mounted; periodic lubrication required | Pre-lubricated; low-maintenance, bolt-ready design |
| Corrosion Resistance | Basic protection (cast iron housing) | Optional coatings/stainless steel (customizable) |
| Cost Efficiency | Mid-range pricing for diverse needs | Budget-friendly for reliable performance in specific scenarios |
Other Technical Data of Bearing
ABEC-1 Tolerance Class ABEC-1 (P0)
| Inner Ring | Tolerance in um/s |
| d mm | Δdmp | 9 | Vdp²)0,1 Diameter Series | 2,3,4 | Vdmp | Kia | ΔBs | Vbs |
|
| over | including | high | low | max | max | max | high | low | max |
| 1)0.6 | 2.5 | 0 | -8 | 10 | 8 | 6 | 6 | 10 | 0 | -40 | 12 |
| 2.5 | 10 | 0 | -8 | 10 | 8 | 6 | 6 | 10 | 0 | -120 | 15 |
| 10 | 18 | 0 | -8 | 10 | 8 | 6 | 6 | 10 | 0 | -120 | 20 |
| 18 | 30 | 0 | -10 | 13 | 10 | 8 | 8 | 13 | 0 | -120 | 20 |
| 30 | 50 | 0 | -12 | 15 | 12 | 9 | 9 | 15 | 0 | -120 | 20 |
| 50 | 80 | 0 | -15 | 19 | 19 | 11 | 11 | 20 | 0 | -150 | 25 |
| Outer Ring | Tolerance in um/s |
| D mm | Δdmp | VDp2)4)Open Bearings Diameter Series | Capped Bearings2)3) | Vdmp | Kia | ΔBs | Vbs |
| 9 | 0,1 | 2,3,4 | 2,3,4 |
| over | including | high | low | max | max | max | high | low | max |
| 1)2.5 | 6 | 0 | -8 | 10 | 8 | 6 | 10 | 6 | 15 | Identical to ΔBs and VBs of inner ring of same bearing |
| 6 | 18 | 0 | -8 | 10 | 8 | 6 | 10 | 6 | 15 |
| 18 | 30 | 0 | -9 | 12 | 9 | 7 | 12 | 7 | 15 |
| 30 | 50 | 0 | -11 | 14 | 11 | 8 | 16 | 8 | 20 |
| 50 | 80 | 0 | -13 | 16 | 13 | 10 | 20 | 10 | 25 |
| 80 | 120 | 0 | -15 | 19 | 19 | 11 | 26 | 11 | 35 |
| 120 | 150 | 0 | -18 | 23 | 23 | 14 | 30 | 14 | 40 |
ABEC-3 Tolerance Class ABEC-3 (P6)
| Inner Ring | Tolerance in um/s |
| d mm | Δdmp | 9 | Vdp²)0,1 Diameter Series | 2,3,4 | Vdmp | Kia | ΔBs | Vbs |
|
| over | including | high | low | max | max | max | high | low | max |
| 11)0.6 | 2.5 | 0 | -7 | 9 | 7 | 5 | 5 | 5 | 0 | -40 | 12 |
| 2.5 | 10 | 0 | -7 | 9 | 7 | 5 | 5 | 6 | 0 | -120 | 15 |
| 10 | 18 | 0 | -7 | 9 | 7 | 5 | 5 | 7 | 0 | -120 | 20 |
| 18 | 30 | 0 | -8 | 10 | 8 | 6 | 6 | 8 | 0 | -120 | 20 |
| 30 | 50 | 0 | -10 | 13 | 10 | 8 | 8 | 10 | 0 | -120 | 20 |
| 50 | 80 | 0 | -12 | 15 | 15 | 9 | 9 | 10 | 0 | -150 | 25 |
| Outer Ring | Tolerance in um/s |
| D mm | Δdmp | VDp2)4)Open Bearings Diameter Series | Capped Bearings2)3) | Vdmp | Kia | ΔBs | Vbs |
| 9 | 0,1 | 2,3,4 | 2,3,4 |
| over | including | high | low | max | max | max | high | low | max |
| 1)2.5 | 6 | 0 | -7 | 9 | 7 | 5 | 9 | 5 | 8 | Identical to ΔBs and VBs of inner ring of same bearing |
| 6 | 18 | 0 | -7 | 9 | 7 | 5 | 9 | 5 | 8 |
| 18 | 30 | 0 | -8 | 10 | 8 | 6 | 10 | 6 | 9 |
| 30 | 50 | 0 | -9 | 11 | 9 | 7 | 13 | 7 | 10 |
| 50 | 80 | 0 | -11 | 14 | 11 | 8 | 16 | 8 | 13 |
| 80 | 120 | 0 | -13 | 16 | 16 | 10 | 20 | 10 | 18 |
| 120 | 150 | 0 | -15 | 19 | 19 | 11 | 25 | 11 | 20 |
ABEC-5 Tolerance Class ABEC-5 (P5)
| Inner Ring | Tolerance in um/s |
| d mm | Δdmp | Vdp²)Diameter Series | Vdmp | Kia | Sd | Sis3) | ΔBs | Vbs |
| 9 | 0,1,2,3,4 |
| over | including | high | low | max | 3 | max | max | max | High | Low | max |
| 1)0.6 | 2.5 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -40 | 5 |
| 2.5 | 10 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -40 | 5 |
| 10 | 18 | 0 | -5 | 5 | 4 | 3 | 4 | 7 | 7 | 0 | -80 | 5 |
| 18 | 30 | 0 | -6 | 6 | 5 | 3 | 4 | 8 | 8 | 0 | -120 | 5 |
| 30 | 50 | 0 | -8 | 8 | 6 | 4 | 5 | 8 | 8 | 0 | -120 | 5 |
| 50 | 80 | 0 | -9 | 9 | 7 | 5 | 5 | 8 | 8 | 0 | -150 | 6 |
| Outer Ring | Tolerance in um/s |
| D mm | Δdmp | Vdp²)Diameter Series | Vdmp | Kia | SD4) SD15) | Sea4)5) | ΔBs | Vbs |
| 9 | 0,1,2,3,4 |
| over | including | high | low | max |
| max | max | max | High | Low | max |
| 1)2.5 | 6 | 0 | -5 | 5 | 4 | 3 | 5 | 8 | 8 |
| 5 |
| 6 | 18 | 0 | -5 | 5 | 4 | 3 | 5 | 8 | 8 | 5 |
| 18 | 30 | 0 | -6 | 6 | 5 | 3 | 6 | 8 | 8 | 5 |
| 30 | 50 | 0 | -7 | 7 | 5 | 4 | 7 | 8 | 8 | 5 |
| 50 | 80 | 0 | -9 | 9 | 7 | 5 | 8 | 8 | 10 | 6 |
| 80 | 120 | 0 | -10 | 10 | 8 | 5 | 10 | 9 | 11 | 8 |
| 120 | 150 | 0 | -11 | 11 | 8 | 6 | 11 | 10 | 13 | 8 |
ABEC-7 Tolerance Class ABEC-7 (P4)
| Inner Ring | Tolerance in um/s |
| d mm | Δdmp | Δds | Vdp²)Diameter Series | Vdmp | Kia | Sd | Sia | ΔBs | Vbs |
| 7,8,9 | 1,7,2,3,4 |
| over | including | high | low | high | low | max | max | max | max | max | High | low | Low | max |
| 1)0.6 | 2.5 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -40 | -40 | 2.5 |
| 2.5 | 10 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -40 | -40 | 2.5 |
| 10 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 2.5 | 3 | 3 | 0 | -80 | -80 | 2.5 |
| 18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 2.5 | 3 | 4 | 4 | 0 | -120 | -120 | 2.5 |
| 30 | 50 | 0 | -6 | 0 | -5 | 6 | 4 | 3 | 4 | 4 | 4 | 0 | -120 | -120 | 3 |
| 50 | 80 | 0 | -7 | 0 | -5 | 7 | 5 | 3.5 | 4 | 5 | 5 | 0 | -150 | -150 | 4 |
| Outer Ring | Tolerance in um/s |
| D mm | Δdmp | Δds | Vdp²)Diameter Series | Vdmp | Kia | Sd | Sia | ΔBs | Vbs |
| 7,8,9 | 1,7,2,3,4 |
| over | including | high | low | high | low | max | max | max | max | max | High | low | max |
| 1)2.5 | 6 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 3 | 4 | 5 | Identical to ΔBs and VBs of inner ring of same bearing | 2.5 |
| 6 | 18 | 0 | -4 | 0 | -4 | 4 | 3 | 2 | 3 | 4 | 5 | 2.5 |
| 18 | 30 | 0 | -5 | 0 | -5 | 5 | 4 | 2.5 | 4 | 4 | 5 | 2.5 |
| 30 | 50 | 0 | -6 | 0 | -6 | 6 | 5 | 3 | 5 | 4 | 5 | 2.5 |
| 50 | 80 | 0 | -7 | 0 | -7 | 7 | 5 | 3.5 | 5 | 4 | 5 | 3 |
| 80 | 120 | 0 | -8 | 0 | -8 | 8 | 6 | 4 | 6 | 5 | 6 | 4 |
| 120 | 150 | 0 | -9 | 0 | -9 | 9 | 7 | 5 | 7 | 5 | 7 | 5 |
| Company Brand
KYODO YUSHI | Product | Base Oil | Usage Range | Characteristics |
|
|
| EXXON | Multemp SRL | Polyol ester+Diester | (-50,+150) | Excellent noise suppressantproperty and extended performance life |
| Multemp PS
| Diester+Refined mineral oil | (-50,+130) | Excellent low temperature performance,has outstanding noise suppressant property |
| Multemp SM-B | Synthetic hydrocarbon | (-50,+200) | Long service life under high temperature,Excellent low temperature performance,has high speed operation,low noise property |
| Multemp ET-K | SyntheticEther +Polyol ester | (-40≥,+200) | Has more extended life under high operating temperature condition |
| MOBILE | Polyrex EM | Mineral grease | (-40,+180) | Long life and high temperature |
| Beacon325 | Synthetic grease | (-54,+150) | General purpose grease |
| Andok C | Channeling petroleum grease | (-27,+120) | Smooth running,long life with minimum migration |
| CHEVRON | Mobil 28(MIL-G-81322) | Synthetic hydrocarbon | (-54,+177) | Wide temperature range,good low temperature torque |
| Mobil HP | Lithium complex | (-30,+110) | Vibration,moderate speed and good corrosion resistance |
| SHELL | SRI-2 | Mineral grease | (-30,+180) | High temperature range,good water resistance |
| DUPONT | Alvania 2 | Mineral grease | (-35,+120) | Long life and high temperature |
| RLQ #2 | Mineral grease | (-50,+150) | Low noise,high speed and high temperature |
| KLUBER | ASONIC | Synthetic hydrocarbon | (-50,+140) | High temperature stability with good lubricity properties |
| JINZHI | HANGU 2# | Mineral grease | (-20,+120) | Low noise |
| HTHS | Mineral grease | (-40,+180) | High speed,low temperature,low torque and low noise |
The Radial Clearance of Bearings with Electric Motor Quality
| Bore | CM |
| Over | Including | Min | Max |
| mm | inch | mm | inch | um | um |
| 10 | 0.3937 | 18 | 0.7087 | 4 | 11 |
| 18 | 0.7087 | 24 | 0.9449 | 5 | 12 |
| 24 | 0.9449 | 30 | 1.1811 | 5 | 12 |
| 30 | 1.1811 | 40 | 1.5748 | 9 | 17 |
| 40 | 1.5748 | 50 | 1.9685 | 9 | 17 |
| 50 | 1.9685 | 65 | 2.5591 | 12 | 22 |
| Datas of The Mini-deep Groove Bearings under No Load as Followed: | Tolerance in um |
| Bore | Inch R Series | C2 | NORMAL | C3 | C4 |
| Over | Including |
| mm | inch | mm | inch | min | max | min | max | min | max | min |
| 2.5 | 0.0984 | 10 | 0.3937 | R2-R6 | 0 | 7 | 2 | 13 | 8 | 23 | 14 |
| 10 | 0.3937 | 18 | 0.7087 | R8-R10 | 0 | 9 | 3 | 18 | 11 | 25 | 18 |
| 18 | 0.7087 | 24 | 0.9449 | R12-R14 | 0 | 10 | 5 | 20 | 13 | 58 | 20 |
| 24 | 0.9449 | 30 | 1.1811 | R16-18 | 1 | 11 | 5 | 20 | 13 | 28 | 23 |
| 30 | 1.1811 | 40 | 1.5748 | R20-R24 | 1 | 11 | 6 | 20 | 15 | 33 | 28 |
| 40 | 1.5748 | 50 | 1.9685 |
| 1 | 11 | 6 | 23 | 18 | 36 | 30 |
| 50 | 1.9685 | 65 | 2.5591 |
| 1 | 12 | 8 | 28 | 23 | 43 | 38 |
| Datas of The Mini-deep Groove Bearings under No Load as Followed: | Tolerance in um |
| Clearance Code | MC1 | MC2 | MC3 | MC4 | MC5 |
| Clearance | min | max | min | max | min | max | min | max | min | max |
| 1 | 6 | 4 | 9 | 6 | 11 | 9 | 14 | 15 | 22 |
Tolerance Data for Vibration of Single Bearing
| D | V | V1 | V2 | V3 | V4 |
| mm | Low | Medium | High | Low | Medium | High | Low | Medium | High | Low | Medium | High | Low | Medium | High |
| 3,4 | 80 | 44 | 44 | 60 | 35 | 32 | 48 | 26 | 22 | 31 | 16 | 15 | 28 | 10 | 10 |
| 5,6 | 110 | 72 | 60 | 74 | 48 | 40 | 58 | 36 | 30 | 35 | 21 | 18 | 32 | 11 | 11 |
| 7,8,9 | 130 | 96 | 80 | 92 | 66 | 54 | 72 | 48 | 40 | 44 | 28 | 24 | 38 | 12 | 12 |
| 10,12 | 160 | 120 | 100 | 120 | 80 | 70 | 90 | 60 | 50 | 55 | 35 | 30 | 45 | 14 | 15 |
| 15 | 210 | 150 | 120 | 150 | 100 | 85 | 110 | 78 | 60 | 65 | 46 | 35 | 52 | 18 | 18 |
| 17 | 210 | 150 | 120 | 150 | 100 | 85 | 110 | 78 | 60 | 65 | 46 | 35 | 52 | 25 | 25 |
| 20 | 260 | 190 | 150 | 180 | 125 | 100 | 130 | 100 | 75 | 80 | 60 | 45 | 60 | 25 | 25 |
| 22,25 | 260 | 190 | 150 | 180 | 125 | 100 | 130 | 100 | 75 | 80 | 60 | 45 | 60 | 30 | 32 |
| 28 | 260 | 190 | 150 | 180 | 125 | 100 | 130 | 100 | 75 | 80 | 60 | 45 | 60 | 35 | 40 |
| 30,32 | 300 | 240 | 190 | 200 | 150 | 130 | 150 | 120 | 100 | 90 | 75 | 60 | 70 | 35 | 40 |
| 35 | 300 | 240 | 190 | 200 | 150 | 130 | 150 | 120 | 100 | 90 | 75 | 60 | 70 | 42 | 45 |
| 40 | 360 | 300 | 260 | 240 | 180 | 160 | 180 | 150 | 130 | 110 | 90 | 80 | 82 | 50 | 50 |
| 45 | 360 | 300 | 260 | 240 | 180 | 160 | 180 | 150 | 130 | 110 | 90 | 80 | 82 | 60 | 60 |
| 50 | 420 | 320 | 320 | 280 | 200 | 200 | 210 | 160 | 160 | 125 | 100 | 100 | 95 | 70 | 70 |
Maximum Vibration Acceleration of Single Bearing
| D | Diameter Series(0) | Diameter Series(2) | Diameter Series(3) |
| mm | Z | Z1 | Z2 | Z3 | Z | Z1 | Z2 | Z3 | Z4 | Z | Z1 | Z2 | Z3 | Z4 |
| 3 | 35 | 34 | 32 | 28 | 36 | 35 | 32 | 30 | - | 37 | 36 | 33 | 31 | - |
| 4 | 35 | 34 | 32 | 28 | 36 | 35 | 32 | 30 | - | 37 | 36 | 33 | 31 | - |
| 5 | 37 | 36 | 34 | 30 | 38 | 37 | 34 | 32 | - | 39 | 37 | 35 | 33 | - |
| 6 | 37 | 36 | 34 | 30 | 38 | 37 | 34 | 32 | - | 39 | 37 | 35 | 33 | - |
| 7 | 39 | 38 | 35 | 31 | 40 | 38 | 36 | 34 | - | - | - | - | - | - |
| 8 | 39 | 38 | 35 | 31 | 40 | 38 | 36 | 34 | - | - | - | - | - | - |
| 9 | 41 | 40 | 36 | 32 | 42 | 40 | 37 | 35 | - | - | - | - | - | - |
| 10 | 43 | 42 | 38 | 33 | 44 | 42 | 39 | 35 | 30 | 37 | 44 | 40 | 37 | 32 |
| 12 | 44 | 43 | 39 | 34 | 45 | 43 | 39 | 35 | 30 | 47 | 45 | 40 | 37 | 32 |
| 15 | 45 | 44 | 40 | 35 | 46 | 44 | 41 | 36 | 31 | 48 | 46 | 42 | 38 | 33 |
| 17 | 46 | 44 | 40 | 35 | 47 | 45 | 41 | 36 | 31 | 49 | 47 | 42 | 38 | 33 |
| 20 | 47 | 45 | 41 | 36 | 48 | 46 | 42 | 38 | 33 | 50 | 48 | 43 | 39 | 34 |
| 22 | 47 | 45 | 41 | 36 | 48 | 46 | 42 | 38 | 33 | 50 | 48 | 43 | 39 | 34 |
| 25 | 48 | 46 | 42 | 38 | 49 | 47 | 43 | 40 | 36 | 51 | 49 | 44 | 41 | 37 |
| 28 | 49 | 47 | 43 | 39 | 50 | 48 | 44 | 41 | 37 | 52 | 50 | 45 | 42 | 38 |
| 30 | 49 | 47 | 43 | 39 | 50 | 48 | 44 | 41 | 37 | 52 | 50 | 45 | 42 | 38 |
| 32 | 50 | 48 | 44 | 40 | 51 | 49 | 45 | 42 | 38 | 53 | 51 | 46 | 43 | 39 |
| 35 | 51 | 49 | 45 | 41 | 52 | 50 | 46 | 43 | 39 | 54 | 52 | 47 | 44 | 40 |
| 40 | 53 | 51 | 46 | 42 | 54 | 52 | 47 | 44 | 40 | 56 | 54 | 49 | 45 | 41 |
| 45 | 55 | 53 | 48 | 45 | 56 | 54 | 49 | 46 | 43 | 58 | 56 | 51 | 47 | 44 |
| 50 | 57 | 54 | 50 | 47 | 58 | 55 | 51 | 48 | 45 | 60 | 57 | 53 | 49 | 46 |
| 55 | 59 | 56 | 52 | 49 | 60 | 57 | 53 | 50 | 47 | 62 | 59 | 54 | 51 | 48 |
| 60 | 61 | 58 | 54 | 51 | 62 | 59 | 54 | 51 | 48 |
| 61 | 56 | 53 | 50 |
