# Hefei Bearing Supply — industrial bearings Industrial bearing supplier in Hefei, Anhui, China serving international OEM manufacturers, distributors and industrial buyers. ## Products - [Deep Groove Ball Bearings](https://www.mytiyu.com/services/deep-groove-ball-bearings/) — Deep groove ball bearings for radial and moderate axial load at high speed - open, ZZ or 2RS, CN or C3 clearance, with designation interchange. - [Angular Contact Ball Bearings](https://www.mytiyu.com/services/angular-contact-ball-bearings/) — Angular contact ball bearings for combined radial and axial load in one direction - 15/25/40 degree contact angles, single or paired for spindle duties. - [Self-Aligning Ball Bearings](https://www.mytiyu.com/services/self-aligning-ball-bearings/) — Self-aligning ball bearings that compensate about 1.5-3 degrees of shaft deflection and misalignment - for long shafts under light to moderate radial load. - [Cylindrical Roller Bearings](https://www.mytiyu.com/services/cylindrical-roller-bearings/) — Cylindrical roller bearings for heavy radial load at moderate speed - separable NU / NJ / NUP designs for motor rotors, gearboxes and rolling mills. - [Tapered Roller Bearings](https://www.mytiyu.com/services/tapered-roller-bearings/) — Tapered roller bearings for combined radial and axial load with high stiffness - metric and inch series, supplied singly or as matched facing pairs. - [Spherical Roller Bearings](https://www.mytiyu.com/services/spherical-roller-bearings/) — Spherical roller bearings combining very high radial capacity with about 1-2.5 degrees of self-alignment - for vibrating screens, mills and mining duty. - [Needle Roller Bearings](https://www.mytiyu.com/services/needle-roller-bearings/) — Needle roller bearings for high radial capacity in the smallest cross-section - drawn cup and solid types, with or without inner rings. - [Thrust Ball Bearings](https://www.mytiyu.com/services/thrust-ball-bearings/) — Thrust ball bearings carrying pure axial load between shaft and housing washers - single or double direction, for crane hooks and vertical pumps. - [Thrust Roller Bearings](https://www.mytiyu.com/services/thrust-roller-bearings/) — Thrust roller bearings carrying axial load through cylindrical, tapered or spherical rollers - higher axial capacity and speed than thrust ball. ## Knowledge - [2RS Contact Seals vs ZZ Metal Shields: How to Choose Before the RFQ](https://www.mytiyu.com/knowledge/2rs-vs-zz-sealed-bearings/) — Screen the environment first: 2RS contact seals exclude fine dust and moisture that pass a ZZ shield's open gap, but the rubber lip limits them to roughly… - [How to Use Dynamic Load Rating and L10 Life to Specify a Bearing Size](https://www.mytiyu.com/knowledge/bearing-load-and-life-selection/) — Calculate L10 = (C/P)^p × 10^6 revolutions from the published dynamic load rating C and the equivalent dynamic load P, convert to hours at the operating… - [Why Do Visually Identical Bearings Differ in Price?](https://www.mytiyu.com/knowledge/bearing-price-differences-causes/) — Two quotes for the same bearing part number usually differ for one of six reasons: precision class, material, cage/seal/lubrication configuration, source… - [What a Bearing RFQ Must Contain for an Accurate Quote and Lead Time](https://www.mytiyu.com/knowledge/bearing-rfq-information-checklist/) — A bearing RFQ quotes accurately when it carries the full designation (or bore, outside diameter, width and bearing type), the clearance class, the precision… - [Shaft and Housing Tolerance Classes for Rolling Bearings: How Fit Choice Sets Internal Clearance](https://www.mytiyu.com/knowledge/bearing-shaft-fitting-practice/) — Shaft and housing tolerance classes are read from load-type tables, not chosen by habit: a rotating inner ring needs an interference shaft class (h5/js6/k6… - [High-Speed VFD Motor Bearings: Screening on dn and Shaft Current, Then Fixing Cage, Clearance and Lubrication](https://www.mytiyu.com/knowledge/bearings-for-high-speed-electric-motors/) — Calculate dn (bore mm × rpm) and compare it against the selected bearing type's and lubricant's published limiting speed before fixing type, cage or… - [Bearing Steel, Clearance, Seal and Grease for Sustained High Temperature: How to Fix the Combination and the Re-lubrication Regime](https://www.mytiyu.com/knowledge/bearings-lubricant-high-temperature/) — Start from the measured continuous ring or housing temperature, not ambient: above 200 °C continuous, the source directs the buyer to a top-tier grease… - [C3 vs CN Bearing Clearance: When Interference Fit, Temperature Rise and Speed Justify C3](https://www.mytiyu.com/knowledge/c3-vs-cn-bearing-clearance/) — C3 is the recognised choice when an interference fit, a hotter inner ring, or high speed is expected to consume the bearing's bench clearance during… - [Cylindrical Roller vs Deep Groove Ball Bearings for High Radial Load: What the Trade-offs Actually Decide](https://www.mytiyu.com/knowledge/cylindrical-roller-vs-deep-groove-ball/) — A cylindrical roller bearing carries more radial load than a deep groove ball bearing of the same envelope because line contact spreads stress over a larger… - [Deep Groove vs Angular Contact Ball Bearings: Choosing on Load Direction, Axial-to-Radial Ratio and Arrangement](https://www.mytiyu.com/knowledge/deep-groove-vs-angular-contact-ball-bearings/) — Deep groove ball bearings are the standard first choice when the load is mainly radial with moderate axial load in both directions, while angular contact… - [Replacing a Bearing by Cross-Reference: What to Decode, Match and Verify Before the PO](https://www.mytiyu.com/knowledge/find-replacement-for-existing-bearing-model/) — A cross-brand bearing replacement can be ordered only after the existing designation is decomposed into type, dimension series, bore, seal, clearance, cage… - [Flanged Ball Bearing vs Standard Bearing in a Separate Housing: What the Evidence Settles](https://www.mytiyu.com/knowledge/flanged-bearing-selection/) — Specify a flanged bearing when the flange face itself must locate the outer ring axially and the housing is thin or soft enough that a shouldered bore or… - [GCr15 vs 52100 Bearing Steel: What an International Buyer Can and Cannot Substitute](https://www.mytiyu.com/knowledge/gcr15-vs-52100-bearing-steel/) — GCr15 (GB/T 18254) and 52100 (ASTM A295 / SAE 52100) are widely cross-referenced as the same alloy family, and their reported C, Cr, Mn, Si, S and P ranges… - [P0 vs P6 vs P5 vs P4 Bearings: What the Step-Up Actually Buys](https://www.mytiyu.com/knowledge/p0-p6-p5-p4-precision-classes/) — A tighter ISO class (P6, P5, P4) tightens boundary-dimension and runout tolerance bands — nothing else. - [Can a Domestic Bearing Replace an Imported One? Which Parameters Decide It, and What the Evidence Cannot Settle](https://www.mytiyu.com/knowledge/replacing-imported-bearing-parameters/) — A domestic bearing can only be judged against a named tolerance class, a stated clearance grade, a separately specified noise requirement, a cage checked… - [Roller vs Ball Bearings: Choosing on Load, Speed, Misalignment and Cost](https://www.mytiyu.com/knowledge/selecting-between-roller-bearings-and-ball-bearings-for-industrial-applications/) — Start from the load and speed: roller bearings carry higher radial loads at the same envelope because line contact spreads stress over more area, while ball… - [Tapered Roller Bearings for Combined Radial and Axial Loads: When to Specify Them, and How to Choose the Pairing, Preload and Adjustment](https://www.mytiyu.com/knowledge/tapered-roller-for-combined-loads/) — Tapered roller bearings are a defensible choice when a position carries combined radial and unidirectional axial load, especially in heavy-duty or… ## Applications ## RFQ Request a quote: https://www.mytiyu.com/contact/ — MOQ 50 pieces, lead time and terms on the capabilities page.