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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67985D/20/20D tapered roller bearing 206.375X282.575X184.15mm for hot strip 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.
67985D/20/20D tapered roller bearing 206.375x282.575x184.15mm details as following:
| Products name | Four row Tapered Roller Bearings 67985D/20/20D |
| Brand name | JHB or your requirement |
| Dimension (dXDxT) | 206.375X282.575X184.15mm |
| Inner diameter(d) | 206.375mm |
| Outer diameter(D) | 282.575mm |
| Inner ring height(W) | 184.15mm |
| Outer ring height(T) | 184.15mm |
| Basic load ratings | Dyn(C):1500 KN |
| Stat(C0):2830KN | |
| Inner ring and outer ring material | Case hardening steel (G20Cr2Ni4A),GCr15SiMn |
| Cage material | steel |
| 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.
67985D/20/20D 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
