Series NBJA 1/4"×1/4"(Sealed)

NICE BEARINGS • NBJA SERIES 1/4" x 1/4"
PART NO.& RFQ DIMENSIONS(INCHES/MM) CAPACITIES (LBS/N)     Appx Weight LBS/KG
Bore B Outside Diam. D Land Diam. L1 Land Diam. L2 TYPE C TYPE X TYPE C TYPE X
Radial Radial Thrust Moment Limiting Speeds (RPM) Limiting Speeds (RPM)
Static Dyn Static Dyn Static Dyn Static Dyn
NBJA020 2.000 2.500 2.148 2.356 680 393 680 514 1,710 790 770 434 3,220 1,500 0.100
  50.8 63.5 54.559 59.842 3,025 1,748 3,025 2,287 7,608 3,515 3,426 1,931 3,220 1,500 0.045
NBJA025 2.500 3.000 2.648 2.856 830 442 830 583 2,090 910 1,150 601 2,630 1,200 0.120
  63.5 76.2 67.259 72.542 3,693 1,966 3,693 2,594 9,298 4,049 5,116 2,674 2,630 1,200 0.054
NBJA030 3.000 3.500 3.148 3.356 990 487 990 643 2,470 1,010 1,600 785 2,230 830 0.140
  76.2 88.9 79.96 85.242 4,405 2,167 4,405 2,861 10,989 4,493 7,118 3,492 2,230 830 0.064
NBJA035 3.500 4.000 3.648 3.856 1,140 530 1,140 701 2,850 1,110 2,130 986 1,930 710 0.170
  88.9 101.6 92.66 97.942 5,072 2,358 5,072 3,119 12,680 4,938 9,476 4,387 1,930 710 0.077
NBJA040 4.000 4.500 4.148 4.356 1,290 571 1,290 756 3,220 1,210 2,740 1,205 1,700 620 0.190
  101.6 114.3 105.36 110.642 5,739 2,540 5,739 3,363 14,326 5,383 12,190 5,361 1,700 620 0.086
NBJA042 4.250 4.750 4.398 4.606 1,370 591 1,370 783 3,410 1,260 3,070 1,321 1,610 580 0.200
  107.95 120.65 111.709 116.992 6,095 2,629 6,095 3,484 15,171 5,606 13,658 5,877 1,610 580 0.091
NBJA045 4.500 5.000 4.648 4.856 1,440 610 1,440 809 3,600 1,310 3,420 1,441 1,520 550 0.210
  114.3 127 118.059 123.342 6,407 2,714 6,407 3,599 16,016 5,828 15,216 6,411 1,520 550 0.095
NBJA047 4.750 5.250 4.898 5.106 1,520 629 1,520 834 3,790 1,565 3,790 1,565 1,450 520 0.220
  120.65 133.35 124.409 129.692 6,762 2,798 6,762 3,710 16,862 6,963 16,862 6,963 1,450 520 0.100
NBJA050 5.000 5.500 5.148 5.356 1,590 648 1,590 859 3,980 1,400 4,180 1,693 1,380 500 0.230
  127 139.7 130.76 136.042 7,074 2,883 7,074 3,822 17,707 6,229 18,597 7,532 1,380 500 0.104
NBJA055 5.500 6.000 5.648 5.856 1,750 685 1,750 908 4,360 1,480 5,020 1,959 1,260 450 0.250
  139.7 152.4 143.459 148.742 7,786 3,048 7,786 4,040 19,398 6,585 22,334 8,716 1,260 450 0.113
NBJA060 6.000 6.500 6.148 6.356 1,900 720 1,900 955 4,740 1,570 5,930 2,240 1,160 330 0.280
  152.4 165.1 156.159 161.442 8,453 3,203 8,453 4,249 21,088 6,985 26,383 9,966 1,160 330 0.127
NBJA065 6.500 7.000 6.648 6.856 2,050 754 2,050 1,001 5,120 1,650 6,910 2,535 1,070 300 0.300
  165.1 177.8 168.859 174.142 9,120 3,355 9,120 4,453 22,779 7,341 30,743 11,278 1,070 300 0.136
NBJA070 7.000 7.500 7.148 7.356 2,200 787 2,200 1,046 5,500 1,730 7,980 2,844 1,000 280 0.310
  177.8 190.5 181.559 186.842 9,788 3,501 9,788 4,654 24,470 7,697 35,503 12,653 1,000 280 0.141
NBJA075 7.500 8.000 7.648 7.856 2,350 820 2,350 1,089 5,880 1,810 9,120 3,165 930 260 0.340
  190.5 203.2 194.259 199.542 10,455 3,648 10,455 4,845 26,160 8,053 40,575 14,081 930 260 0.154

 

Thin Section Bearing Type C ( Radial Contact Bearings ),Open Bearings

The type C radial contact bearing is designed with a single row deep groove ball bearing with the raceway of the inner and outer ring. Due to the way of contract, it would allow them to withstand high loads itself. Although the type C bearing is used mainly in applications with radial loads, it can accept some moderate axial loads, reversing axial loads, and moment loads.

TYPE C LOAD CONDITION
Radial Axial Moment Reversing Axial Combined Radial-Thrust
Excellent Good

Good   (Light to moderate loads)

Good   (Light to moderate loads)

Good

 

Thin Section Bearing Type X ( Four-point Contact Bearings ),Open Bearings

The type X bearing or four-point contact bearing are designed with gothic arch raceways creating 4 contact points between the balls and the raceways. Because of its special designation, the type X bearings would be excellent for moment loading and reversing axial loading. Meanwhile, the type X bearings can be provided for other light loading conditions, but not be recommended in place of the type A or type C bearing for pure radial loads.

TYPE X LOAD CONDITION
Radial Axial Moment Reversing Axial Combined Radial-Thrust
Poor Good Excellent Excellent Poor

 

TYPE C INTERCHANGE

TYPE X INTERCHANGE

NICE BEARING

PART NO.

KAYDON

PART NO.

SILVER

PART NO.

SSB

PART NO.

NICE BEARING

PART NO.

KAYDON

PART NO.

SILVER

PART NO.

SSB

PART NO.

NBJA020CPO

JA020CPO

JSA020CPO

RJA020CPO

NBJA020XPO

JA020XPO

JSA020XPO

RJA020XPO

NBJA025CPO

JA025CPO

JSA025CPO

RJA025CPO

NBJA025XPO

JA025XPO

JSA025XPO

RJA025XPO

NBJA030CPO

JA030CPO

JSA030CPO

RJA030CPO

NBJA030XPO

JA030XPO

JSA030XPO

RJA030XPO

NBJA035CPO

JA035CPO

JSA035CPO

RJA035CPO

NBJA035XPO

JA035XPO

JSA035XPO

RJA035XPO

NBJA040CPO

JA040CPO

JSA040CPO

RJA040CPO

NBJA040XPO

JA040XPO

JSA040XPO

RJA040XPO

NBJA042CPO

JA042CPO

JSA042CPO

RJA042CPO

NBJA042XPO

JA042XPO

JSA042XPO

RJA042XPO

NBJA045CPO

JA045CPO

JSA045CPO

RJA045CPO

NBJA045XPO

JA045XPO

JSA045XPO

RJA045XPO

NBJA047CPO

JA047CPO

JSA047CPO

RJA047CPO

NBJA047XPO

JA047XPO

JSA047XPO

RJA047XPO

NBJA050CPO

JA050CPO

JSA050CPO

RJA050CPO

NBJA050XPO

JA050XPO

JSA050XPO

RJA050XPO

NBJA055CPO

JA055CPO

JSA055CPO

RJA055CPO

NBJA055XPO

JA055XPO

JSA055XPO

RJA055XPO

NBJA060CPO

JA060CPO

JSA060CPO

RJA060CPO

NBJA060XPO

JA060XPO

JSA060XPO

RJA060XPO

NBJA065CPO

JA065CPO

JSA065CPO

RJA065CPO

NBJA065XPO

JA065XPO

JSA065XPO

RJA065XPO

NBJA070CPO

JA070CPO

JSA070CPO

RJA070CPO

NBJA070XPO

JA070XPO

JSA070XPO

RJA070XPO

NBJA075CPO

JA075CPO

JSA075CPO

RJA075CPO

NBJA075XPO

JA075XPO

JSA075XPO

RJA075XPO

 

▲   The design’s of all these Precision Thin Section Bearings|Thin Cross Section Ball Bearings|Ultra Slim Thin Section Bearings are based on standard structures; LYNB can design and manufacture many other similar structures in accordance to the special and particular requirements of their customers’. If our customer’s have specific requests then the customer should identify the structure, and mounting dimensions that are required. Please contact the LYNB Technical Center if you need any assistance in this area.

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