Active Member
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[China]
Address: Yiyang Bearing Industry Zone, Luoyang City, Henan Province, China PRC. 471600
Contact name:Jean Yang
JinHang Precision Bearing Co.,Ltd |
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Tapered Roller Bearing 47T443225 Size 220x320x250mm For Channel Type Steel Rolling Mills
We/JINHANG Precision Bearing produces special executions of TQO made of four single cups and two double cone assemblies (design without spacers).
Most of TQO and TQI four row taper roller bearings are manufactured with inch dimensions as per American AFBMA 19/1974 and as per We/JINHANG Precision Bearing standard practice, dimensional and running accuracy grade is in accordance with class 2 or 4.
TQO and TQI configuration (face-to-face or back-toback arangement),
• sealed and open bearings,
• bearings with or without extended inner rings,
• bearings with cylindrical or tapered bore,
• bearings with and without spacer rings.
4 Row 47T443225 Tapered roller bearing 220X320X250mm details as following:
| Products name | Four 4 row Tapered Roller Bearings 47T443225 |
| Brand name | JHB or your requirment |
| Dimension (dXDxT) | 220*320*250mm |
| Inner diameter(d) | 220mm |
| Outer diameter(D) | 320 mm |
| Inner ring height(W) | 250mm |
| Outer ring height(T) | 250mm |
| Basic load ratings | Dyn(C)2410 KN |
| Stat(C0)4230KN | |
| Inner ring and outer ring material | Case hardening steel (G20Cr2Ni4A),GCr15SiMn |
| Heat treatment | HR58-62 |
| Cage material | Steel press or pin type |
| HS code | 84822000.00 |
| Precision | PO P6 P5 P4 |
| Quality standard | ISO9001:2000 standard |
| Service | Offer technology service |
| Delivery date | Normally ready goods and stock within 70 days |
TQI design Open bearing, pairs of roller and cage assemblies
arranged back-to back.
four-row taper roller bearings are primarily produced with the TQO
configuration in the TQON design without spacer rings In the
TQO configuration, there are two roller and cage assemblies
arranged face-to-face. The bearings are normally supplied with
pressed steel window-type cages, although the larger sizes may have
pierced rollers and steel pin-type cages Four-row taper roller
bearings are also produced with extended inner rings, which can
serve as counterfaces for radial shaft seals .Also these bearings
can be supplied without spacer rings (design TQOEN) or with spacer
rings (design TQOE).
Four-row taper roller bearings that are to be mounted with a loose
fit on the roll neck, are normally supplied with a helical groove
in the inner ring bore and lubrication grooves in the side faces of
the inner rings. The lubrication grooves enable lubricant to be
supplied to the contact surfaces of the inner rings and journal
seating where there is a risk of wear occurring. Lubricant is
stored and wear particles can be deposited in the helical grooves.
This reduces wear of the roll neck.
| Component |
Two double cones, two single cups and a double cup with a cone spacer and two cup spacers. Spacers have slots or holes for lubrication. Cone spacers are hardened to reduce face wear. Numbered serially to assure correct installation sequence.
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| Details | TQO bearings are directly mounted and comprised of two double inner races, two single and one double outer race, with an inner race spacer and two outer race spacers. Slots in the inner race spacer permit lubricant to flow from the bearing chamber to the roll neck. The inner race spacers are hardened to minimize face wear. |
| Application | heavy plate mills _ hot strip mills _ cold rolling mills _ skin pass mills _ roughing mills _ universal beam mills _ rod, bar and wire mills |
| Material | GCr15SiMn ,G20Cr2Ni4A( carburizing steel) |
| Packing | First lubricated, Second circled with plastic film/Kraft paper/blue belt, and then packaged in plywood case, last gathered in Wooden pallet |
| Delivery time | In stock, if not available,It will need 20-30 days |
| Serive and drawing | Our engineer can design the assembly drawing to you |
47T443225 Tapered Roller Bearing Applications as following:
● heavy plate mills
● hot strip mills
● cold rolling mills
● skin pass mills
● roughing mills
● universal beam mills
● rod, bar and wire mills
